Math & Numbers
Calculate a weighted course grade from assignment scores and category weights
grade-calculatorMath & Numbers
Calculate credit-weighted GPA from course names, credit hours, and letter or numeric grades
gpa-calculatorMath & Numbers
Calculate residuals, absolute errors, SSE, MSE, and RMSE from actual and predicted values or a linear equation
residual-calculatorMath & Numbers
Fit a polynomial least-squares curve to paired numeric data and inspect coefficients, R squared, and predictions
polynomial-regression-calculatorMath & Numbers
Calculate exact and cumulative probabilities for sampling without replacement
hypergeometric-distribution-calculatorMath & Numbers
Calculate union, independent intersection, complement, and at-least-one probabilities
probability-calculatorMath & Numbers
Calculate Pearson r, r squared, covariance, and confidence interval for paired numeric data
pearson-correlation-calculatorMath & Numbers
Calculate one or more percentiles for a numeric dataset with linear, nearest-rank, or exclusive methods
percentile-calculatorMath & Numbers
Calculate population standard deviation from population variance using the n denominator
population-standard-deviation-calculatorMath & Numbers
Calculate population variance with the n denominator for a complete numeric dataset
population-variance-calculatorMath & Numbers
Find all real and complex roots of a polynomial from a coefficient list using a numerical root finder
polynomial-roots-calculatorMath & Numbers
Break an integer into prime factors, show the factorization string, and optionally include divisor properties and factorization steps
prime-factorization-calculator