➗ Math & Numbers
Math utilities and numeric tools
Inches to CM
Convert inches to centimeters with configurable decimal precision
Math & NumbersMeter to Feet
Convert meters to feet with configurable decimal precision
Math & NumbersCM to Inches
Convert centimeters to inches with configurable decimal precision
Math & NumbersSample Size Calculator
Estimate required sample size for proportions or means using confidence level, margin of error, and optional finite population correction
Math & NumbersKG to LB
Convert kilograms to pounds with configurable decimal precision
Math & NumbersLB to KG
Convert pounds to kilograms with configurable decimal precision
Math & NumbersNormal Distribution Calculator
Calculate z-scores, cumulative probability, tail probability, and interval probability for a normal distribution
Math & NumbersT-Test Calculator
Run one-sample or two-sample t-tests from raw data and inspect t statistics, degrees of freedom, and p-values
Math & NumbersANOVA Calculator
Run one-way ANOVA across multiple groups and inspect sums of squares, F statistic, and p-value
Math & NumbersCorrelation Calculator
Calculate Pearson correlation, covariance, and linear association strength from paired numeric data
Math & NumbersConfidence Interval Calculator
Calculate confidence intervals for a sample mean or proportion using either raw data or summary statistics
Math & NumbersRegression Calculator
Run simple linear regression on paired numeric data and inspect slope, intercept, correlation, and predictions
Math & Numbers