Online Math Tools & Calculators

Math, Date & Finance

Absolute Value Calculator

Calculate the absolute value of positive, negative, or decimal numbers and explain the sign relationship

AI & Generators

AI Math Solver/Photomath

Solve math problems from images using AI vision models with step-by-step explanations

Math, Date & Finance

Angle Unit Converter

Convert between different angle units (degrees, radians, gradians, minutes, seconds, etc.)

Math, Date & Finance

ANOVA Calculator

Run one-way ANOVA across multiple groups and inspect sums of squares, F statistic, and p-value

Math, Date & Finance

Antilog Calculator

Calculate antilogarithms for any valid base and optionally verify the result by applying the logarithm again

Math, Date & Finance

Area Unit Converter

Convert between different area units (square meters, square feet, acres, hectares, etc.)

Math, Date & Finance

Arithmetic Sequence Calculator

Calculate the nth term, first terms, and finite sum of an arithmetic sequence

Math, Date & Finance

Average Calculator

Compare arithmetic, geometric, and harmonic averages for a numeric dataset in one place

Math, Date & Finance

Basic Calculator

Perform basic arithmetic calculations with support for multiple operations

Math, Date & Finance

Bayes Theorem Calculator

Calculate posterior probability P(A given B) using prior, likelihood, and false-positive rate

Math, Date & Finance

Big Number Calculator

Perform arithmetic operations on very large numbers

Math, Date & Finance

Binomial Distribution Calculator

Calculate exact, cumulative, and upper-tail binomial probabilities for independent Bernoulli trials

Math, Date & Finance

Break-Even Calculator

Calculate the break-even point for a product or business based on fixed costs, variable costs, and price

Math, Date & Finance

Byte to MB

Convert bytes to megabytes using the decimal MB standard with configurable precision

Math, Date & Finance

Celsius to Fahrenheit

Convert Celsius to Fahrenheit with configurable decimal precision

Math, Date & Finance

Chemical Equation Balancer

Automatically balance chemical equations using linear algebra methods

Math, Date & Finance

Chi-Square Distribution Calculator

Calculate chi-square distribution PDF, CDF, and right-tail probability from a statistic and degrees of freedom

Math, Date & Finance

CM to Inches

Convert centimeters to inches with configurable decimal precision

Math, Date & Finance

Coefficient of Variation Calculator

Calculate coefficient of variation as relative standard deviation for comparing variability across datasets

Data & Tables

Column Calculator

Perform calculations on columns and add new rows

Math, Date & Finance

Combination Calculator

Calculate combinations (C(n,r)) with support for different types: with/without repetition, binomial coefficients, and detailed combinatorial analysis.

Math, Date & Finance

Commission Calculator

Calculate sales commission and total earnings based on sales amount and commission rate

Math, Date & Finance

Complex Number Calculator

Perform structured arithmetic and analysis for complex numbers in algebraic and polar form

Math, Date & Finance

Conditional Probability Calculator

Calculate P(A given B) from joint probability P(A and B) and condition probability P(B)

Math, Date & Finance

Confidence Interval Calculator

Calculate confidence intervals for a sample mean or proportion using either raw data or summary statistics

Math, Date & Finance

Continued Fraction Calculator

Convert numbers to continued fraction representation

Math, Date & Finance

Correlation Calculator

Calculate Pearson and Spearman correlation coefficients from paired numeric data

Math, Date & Finance

Covariance Calculator

Calculate sample and population covariance from paired numeric data

Math, Date & Finance

Cross Product Calculator

Compute the 2D signed area or 3D cross product between two vectors

Math, Date & Finance

Cube Root Calculator

Calculate cube roots for positive or negative numbers and verify the cubed result

Math, Date & Finance

Cubic Equation Solver

Solve cubic equations, classify the root pattern, and show Cardano-style intermediate values

Math, Date & Finance

Data Storage Unit Converter

Convert between different data storage units (bit, byte, KB, MB, GB, TB, etc.)

Math, Date & Finance

Day of Week Calculator

Calculate what day of the week a given date falls on

Math, Date & Finance

Decimal to Fraction Calculator

Convert decimals into simplified fractions or mixed numbers with configurable tolerance and denominator limits

Math, Date & Finance

Density Unit Converter

Convert between different density units (kg/m³, g/cm³, lb/ft³, etc.)

Math, Date & Finance

Derivative Calculator

Calculate derivatives of common functions

Math, Date & Finance

Determinant Calculator

Compute the determinant of a square matrix and explain the main calculation steps

Math, Date & Finance

Digital Root Calculator

Calculate the digital root of numbers. The digital root is the recursive sum of digits until a single digit is obtained.

Math, Date & Finance

Discount Calculator

Calculate discounted prices, savings, and final price after applying percentage or fixed amount discounts

Math, Date & Finance

Divisibility Calculator

Check whether one integer is divisible by another and show the quotient, remainder, and optional divisibility hint

Math, Date & Finance

Dot Product Calculator

Compute the dot product, cosine similarity, and angle between two vectors

Math, Date & Finance

Effect Size Calculator

Calculate Cohen d, Hedges g, Cohen h for proportions, or correlation r effect sizes from summary statistics

Math, Date & Finance

Electricity Calculator

Calculate electricity costs based on power consumption and usage time

Math, Date & Finance

Energy Unit Converter

Convert between different energy units (joules, calories, kilowatt-hours, BTU, etc.)

Math, Date & Finance

Exponential Calculator

Calculate natural exponential values e^x, inspect growth factors, and compare them with the inverse e^-x

Math, Date & Finance

Exponential Distribution Calculator

Calculate PDF, CDF, survival probability, and interval probability for an exponential distribution

Math, Date & Finance

F Distribution Calculator

Calculate F distribution density, cumulative probability, and right-tail probability from numerator and denominator degrees of freedom

Math, Date & Finance

Factorial Calculator

Calculate n! for a non-negative integer with exact BigInt output, optional steps, and related values such as trailing zeros

Math, Date & Finance

Fahrenheit to Celsius

Convert Fahrenheit to Celsius with configurable decimal precision

Math, Date & Finance

Feet to Meter

Convert feet to meters with configurable decimal precision

Math, Date & Finance

Fibonacci Sequence Generator

Generate Fibonacci sequence with customizable start numbers, length, and output format. Includes golden ratio analysis and mathematical properties.

Math, Date & Finance

Force Unit Converter

Convert between different force units (newton, pound-force, kilogram-force, dyne, etc.)

Math, Date & Finance

Fourier Series Calculator

Calculate Fourier series coefficients for common waveforms

Math, Date & Finance

Fraction Calculator

Evaluate fraction expressions, simplify results, and show decimal plus mixed-number forms

Math, Date & Finance

Fraction Decimal Converter

Convert between fractions and decimals with support for mixed numbers, improper fractions, and various decimal formats

Math, Date & Finance

Fraction to Decimal Calculator

Convert fractions or mixed numbers into decimals with configurable precision and percentage output

Math, Date & Finance

Gas Price Calculator

Calculate fuel costs based on distance, fuel efficiency, and gas price

Math, Date & Finance

GB to MB

Convert gigabytes to megabytes using the decimal storage standard with configurable precision

Math, Date & Finance

GCD & LCM Calculator

Calculate the greatest common divisor and least common multiple for two or more integers

Math, Date & Finance

Geometric Distribution Calculator

Calculate probabilities for the trial number of the first success in repeated Bernoulli trials

Math, Date & Finance

Geometric Mean Calculator

Calculate the geometric mean of positive numeric values for growth rates, ratios, and multiplicative datasets

Math, Date & Finance

Geometric Sequence Calculator

Calculate the nth term, first terms, and finite sum of a geometric sequence

Math, Date & Finance

Harmonic Mean Calculator

Calculate the harmonic mean of positive values, with optional arithmetic and geometric mean comparison

Math, Date & Finance

Hyperbolic Calculator

Calculate hyperbolic functions (sinh, cosh, tanh)

Math, Date & Finance

Hypergeometric Distribution Calculator

Calculate exact and cumulative probabilities for sampling without replacement

Math, Date & Finance

Inches to CM

Convert inches to centimeters with configurable decimal precision

Math, Date & Finance

Integral Calculator

Calculate indefinite integrals of common functions

Math, Date & Finance

Interquartile Range Calculator

Calculate Q1, Q3, IQR, and optional 1.5 x IQR outlier fences for a numeric dataset

Math, Date & Finance

Kendall Tau Calculator

Calculate Kendall tau-a and tau-b rank correlation for paired numeric data

Math, Date & Finance

KG to LB

Convert kilograms to pounds with configurable decimal precision

Math, Date & Finance

KM to Miles

Convert kilometers to miles with configurable decimal precision

Math, Date & Finance

KMH to MPH

Convert kilometers per hour to miles per hour with configurable decimal precision

Math, Date & Finance

Kurtosis Calculator

Calculate raw and excess kurtosis to measure tail weight and peakedness of a distribution

Math, Date & Finance

LB to KG

Convert pounds to kilograms with configurable decimal precision

Math, Date & Finance

Length Unit Converter

Convert between different length units (meters, feet, inches, miles, etc.)

Math, Date & Finance

Limit Calculator

Calculate limits of functions as x approaches a value

Math, Date & Finance

Linear Equation Solver

Solve linear equations of the form ax + b = 0 using coefficients or a typed equation

Math, Date & Finance

Logarithm Calculator

Calculate logarithms with any valid base, with optional log10, log2, and natural-log comparisons

Math, Date & Finance

Margin Calculator

Calculate profit margin, markup, and selling price based on cost and desired margin percentage

Math, Date & Finance

Margin of Error Calculator

Calculate the margin of error for a mean or proportion from sample size, confidence level, and variability

Math, Date & Finance

Markup Calculator

Calculate markup, selling price, and profit based on cost and markup percentage

Math, Date & Finance

Percentage Calculator

Solve common percentage questions including percentage of a total, value from a percentage, and percentage change

Math, Date & Finance

Matrix Calculator

Perform core matrix operations including addition, multiplication, inverse, determinant, trace, and rank

Math, Date & Finance

Matrix Inverse Calculator

Compute the inverse of a square matrix using Gauss-Jordan elimination and report when inversion is impossible

Math, Date & Finance

Matrix Multiplication Calculator

Multiply two matrices and return the product with dimension checks and optional step explanations

Math, Date & Finance

MB to GB

Convert megabytes to gigabytes using the decimal storage standard with configurable precision

Math, Date & Finance

Mean Absolute Deviation Calculator

Calculate mean absolute deviation around the mean or median for an easy-to-read spread measure

Math, Date & Finance

Mean Calculator

Calculate the arithmetic mean of a numeric dataset and review the main supporting statistics

Math, Date & Finance

Median Calculator

Find the median of a dataset, inspect the sorted sequence, and optionally review quartiles and interquartile range

Math, Date & Finance

Meter to Feet

Convert meters to feet with configurable decimal precision

Math, Date & Finance

Midrange Calculator

Calculate the midrange of a numeric dataset as the average of its minimum and maximum values

Math, Date & Finance

Miles to KM

Convert miles to kilometers with configurable decimal precision

Math, Date & Finance

Mode Calculator

Find the most frequent value or values in a dataset and inspect the supporting frequency distribution

Math, Date & Finance

Modular Calculator

Perform modular arithmetic operations

Math, Date & Finance

Modulo Calculator

Compute the remainder of integer division, with optional normalization to the positive modulo form

Math, Date & Finance

MPH to KMH

Convert miles per hour to kilometers per hour with configurable decimal precision

Math, Date & Finance

Natural Log Calculator

Calculate natural logarithms ln(x), with optional comparisons to log10 and the matching exponential form

Math, Date & Finance

Normal Distribution Calculator

Calculate z-scores, cumulative probability, tail probability, and interval probability for a normal distribution

Math, Date & Finance

Nth Root Calculator

Calculate nth roots with configurable degree, including odd roots of negative numbers

Math, Date & Finance

Number Converter

Convert numbers between different formats (decimal, binary, hexadecimal, octal)

Math, Date & Finance

Number Precision Adjuster

Adjust and format number precision, decimal places, and scientific notation with various rounding and padding options

Math, Date & Finance

Number Rounding Tool

Round numbers with precision control, supporting different rounding methods and batch processing

Math, Date & Finance

One Sample t Test Calculator

Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval

Math, Date & Finance

P Value Calculator

Calculate one-tailed or two-tailed p-values for Z, t, chi-square, and F test statistics

Math, Date & Finance

Paired t Test Calculator

Run paired-sample t tests from before and after values or precomputed paired differences

Math, Date & Finance

Pascal's Triangle Generator

Generate Pascal's triangle with customizable number of rows

Math, Date & Finance

Pearson Correlation Calculator

Calculate Pearson r, r squared, covariance, and confidence interval for paired numeric data

Math, Date & Finance

Percent Error Calculator

Calculate percent error between an experimental value and a reference value

Math, Date & Finance

Percentage Calculator

Calculate percentages, percentage changes, and percentage relationships between numbers

Math, Date & Finance

Percentage Decrease Calculator

Calculate the percentage decrease between an original value and a new value

Math, Date & Finance

Percentage Increase Calculator

Calculate the percentage increase between an original value and a new value

Math, Date & Finance

Percentile Calculator

Calculate one or more percentiles for a numeric dataset with linear, nearest-rank, or exclusive methods

Math, Date & Finance

Percentile to Z-Score Calculator

Convert a normal percentile, tail area, or central area into a standard normal z-score

Math, Date & Finance

Perimeter Calculator

Calculate the perimeter of various geometric shapes

Math, Date & Finance

Permutation Calculator

Calculate permutations with or without repetition, plus circular arrangements, with formulas and optional steps

Math, Date & Finance

Poisson Distribution Calculator

Calculate exact, cumulative, and upper-tail Poisson probabilities from an expected event rate

Math, Date & Finance

Polynomial Calculator

Evaluate and analyze polynomials

Math, Date & Finance

Polynomial Roots Calculator

Find all real and complex roots of a polynomial from a coefficient list using a numerical root finder

Math, Date & Finance

Population Standard Deviation Calculator

Calculate population standard deviation from population variance using the n denominator

Math, Date & Finance

Population Variance Calculator

Calculate population variance with the n denominator for a complete numeric dataset

Math, Date & Finance

Power Calculator

Raise a base to any real exponent, with optional scientific notation and verification details

Math, Date & Finance

Pressure Unit Converter

Convert between different pressure units (pascal, bar, psi, atmosphere, etc.)

Math, Date & Finance

Prime Factorization Calculator

Factor any integer into its prime factors with detailed analysis and mathematical properties.

Math, Date & Finance

Prime Factorization Calculator

Break an integer into prime factors, show the factorization string, and optionally include divisor properties and factorization steps

Math, Date & Finance

Prime Number Checker

Check if a number is prime (a natural number greater than 1 that has no positive divisors other than 1 and itself)

Math, Date & Finance

Probability Calculator

Calculate union, independent intersection, complement, and at-least-one probabilities

Math, Date & Finance

Proportion Calculator

Solve proportion equations of the form a/b = c/d and calculate the missing term

Math, Date & Finance

Quadratic Equation Calculator

Solve quadratic equations, classify the roots, and return discriminant, vertex, and factor information

Math, Date & Finance

Quadratic & Linear Equation Solver

Solve quadratic equations ax² + bx + c = 0 and linear equations bx + c = 0 with detailed steps, discriminant analysis, vertex calculation, and axis of symmetry.

Math, Date & Finance

Quartile Calculator

Calculate Q1, median, Q3, interquartile range, and optional outlier fences for a numeric dataset

Math, Date & Finance

Range Calculator

Calculate the statistical range of a numeric dataset from its minimum and maximum values

Math, Date & Finance

Ratio Calculator

Simplify ratios, calculate ratio shares, and convert between ratio, fraction, and decimal forms

Math, Date & Finance

Rational Number Calculator

Perform arithmetic operations on fractions

Math, Date & Finance

Regression Calculator

Run simple linear regression on paired numeric data and inspect slope, intercept, correlation, and predictions

Math, Date & Finance

Roman Numeral Converter

Convert between Arabic numbers and Roman numerals with validation and detailed results

Math, Date & Finance

Rounding Calculator

Round numbers to integers, decimal places, tens, or hundreds using a simple rounding mode selector

Data & Tables

Row Calculator

Perform calculations on each row and add new columns

Math, Date & Finance

Sample Size Calculator

Estimate required sample size for proportions or means using confidence level, margin of error, and optional finite population correction

Math, Date & Finance

Sample Standard Deviation Calculator

Calculate sample standard deviation from sample variance using the n - 1 denominator

Math, Date & Finance

Sample Variance Calculator

Calculate sample variance with the n - 1 denominator for estimating spread from a sample dataset

Math, Date & Finance

Scientific Calculator

Advanced scientific calculator with support for complex mathematical functions and expressions

Math, Date & Finance

Scientific Notation Calculator

Add, subtract, multiply, and divide values written in scientific notation, then return standard, scientific, and engineering forms

Math, Date & Finance

Scientific Notation Converter

Convert numbers between standard decimal format and scientific notation, with optional engineering notation output

Math, Date & Finance

Sequence Calculator

Calculate arithmetic, geometric, and Fibonacci sequences, including the nth term, the first terms, and the partial sum

Math, Date & Finance

Significant Figures Calculator

Count significant figures and round numbers to a target number of significant digits

Math, Date & Finance

Skewness Calculator

Calculate sample and population skewness to measure distribution asymmetry

Math, Date & Finance

Spearman Correlation Calculator

Calculate Spearman rank correlation for paired numeric data with tied-rank handling

Math, Date & Finance

Speed Unit Converter

Convert between different speed units (m/s, km/h, mph, knot, mach, etc.)

Math, Date & Finance

Square Root Calculator

Calculate square roots, check whether a value is a perfect square, and verify the squared result

Math, Date & Finance

Standard Deviation Calculator

Calculate sample and population standard deviation, variance, coefficient of variation, and sigma intervals

Math, Date & Finance

Standard Normal Calculator

Calculate standard normal PDF, CDF, tail probability, two-tail probability, and central area from a z-score

Math, Date & Finance

Statistical Power Calculator

Estimate statistical power for one-sample mean or proportion tests using sample size, alpha, and expected effect

Math, Date & Finance

Statistics Calculator

Calculate statistical measures for numerical datasets including mean, median, mode, standard deviation, and more

Math, Date & Finance

Sum Calculator

Calculate sum of numbers with partial sums, cumulative sums, and statistics

Math, Date & Finance

Sum Of Series Calculator

Sum arithmetic series, geometric series, or a custom list of terms

Math, Date & Finance

T Distribution Calculator

Calculate Student t distribution PDF, CDF, tail probability, two-tail probability, and central area

Math, Date & Finance

T-Test Calculator

Run one-sample or two-sample t-tests from raw data and inspect t statistics, degrees of freedom, and p-values

Math, Date & Finance

Taylor Series Calculator

Calculate Taylor series expansion for common functions

Math, Date & Finance

Temperature Unit Converter

Convert between different temperature units (Celsius, Fahrenheit, Kelvin, Rankine)

Math, Date & Finance

Time Unit Converter

Convert between different time units (seconds, minutes, hours, days, weeks, etc.)

Math, Date & Finance

Tip Calculator

Calculate tips and split bills between multiple people with customizable tip percentages

Math, Date & Finance

Trigonometry Calculator

Calculate trigonometric functions (sin, cos, tan)

Math, Date & Finance

Trimmed Mean Calculator

Calculate a trimmed mean by removing the same percentage of low and high values before averaging

Math, Date & Finance

Two Sample t Test Calculator

Run an independent two-sample t test with pooled variance from raw data or summary statistics

Math, Date & Finance

Uniform Distribution Calculator

Calculate PDF, CDF, survival probability, and interval probability for a continuous uniform distribution

Math, Date & Finance

Variance Calculator

Calculate sample variance, population variance, and optional standard deviation for a numeric dataset

Math, Date & Finance

Vector Calculator

Perform core vector operations such as addition, subtraction, scaling, magnitude, normalization, angle, and distance

Math, Date & Finance

Volume Unit Converter

Convert between different volume units (liters, gallons, cups, cubic meters, etc.)

Math, Date & Finance

Water Bill Calculator

Calculate water costs based on usage and water rates

Math, Date & Finance

Weight Unit Converter

Convert between different weight units (kilograms, pounds, ounces, grams, etc.)

Math, Date & Finance

Weighted Average Calculator

Calculate a weighted average from paired values and weights, with contribution and normalized weight details

Math, Date & Finance

Welch t Test Calculator

Run Welch two-sample t tests for independent groups with unequal variances from raw data or summary statistics

Math, Date & Finance

Winsorized Mean Calculator

Calculate a winsorized mean by capping extreme low and high values before averaging

Math, Date & Finance

Z-Score Calculator

Calculate a z-score from a raw value using a dataset or manually entered mean and standard deviation

Math, Date & Finance

Z-Score to Percentile Calculator

Convert a z-score into normal-distribution percentile, tail probability, or central area

Math, Date & Finance

Z Test Calculator

Run one-sample Z tests for a mean with known population standard deviation or a single population proportion

Conversion

174 Tools

Access 174 online conversion tools for files and data. Process formats securely on our servers with automatic file deletion after 6 hours.

Unit

15 Tools

Access 15 online unit tools for converting measurements and calculating dimensions. Secure server-side processing with automatic file deletion after 6 hours.

p-value

10 Tools

Access 10 online p-value tools for statistical significance testing. Calculate p-values from Z, T, Chi-Square, and F-scores via our secure servers.

Ratio

21 Tools

Access 21 online ratio tools to calculate proportions, simplify ratios, and scale dimensions. Secure server-side processing with automatic file deletion.

Standard Deviation

12 Tools

Access 12 online tools for calculating standard deviation, variance, and data dispersion. Process datasets securely on our servers with automatic file deletion.

Meter

11 Tools

Access 11 online meter tools for measurement, unit conversion, and data analysis. Secure server-side processing with automatic file deletion after 6 hours.