Math & Numbers
Calculate the score needed on a final exam to reach a desired overall course grade
final-grade-calculatorMath & Numbers
Convert points earned and total points into a test score percentage, points lost, and letter grade
test-score-percentage-calculatorMath & Numbers
Calculate weighted GPA from credits, grades, and course rigor bonuses for honors, AP, or IB classes
weighted-gpa-calculatorMath & Numbers
Calculate residuals, absolute errors, SSE, MSE, and RMSE from actual and predicted values or a linear equation
residual-calculatorMath & Numbers
Find slope, y-intercept, and line equation from two points or multiple paired observations
slope-intercept-calculatorMath & Numbers
Calculate the standard error of the mean from raw sample values or summary statistics
standard-error-calculatorMath & Numbers
Calculate coefficient of determination R squared from actual and predicted values
r-squared-calculatorMath & Numbers
Fit a multiple linear regression model from rows of predictor variables and a numeric target
multiple-linear-regression-calculatorMath & Numbers
Run Fisher exact test for a 2 x 2 contingency table with exact one-sided or two-sided p-values
fisher-exact-test-calculatorMath & Numbers
Test paired binary categorical changes with exact binomial or continuity-corrected chi-square McNemar test
mcnemar-test-calculatorMath & Numbers
Compare two independent samples with the nonparametric Mann-Whitney U rank-sum test
mann-whitney-u-test-calculatorMath & Numbers
Compare means across three or more independent groups with a one-way ANOVA F test
one-way-anova-calculator