GraphPad Software
QuickCalcs Run statistical analyses quickly and directly in your browser
GraphPad QuickCalcs: Analyze continuous data
Confidence interval of a sum, difference, quotient or product of two means. Confidence interval of a standard deviation. Linear regression. Analyze, graph and present your scientific work easily with …
GraphPad QuickCalcs: Analyze categorical data
NNT (Number Needed to Treat) with confidence interval. Predictive values from sensitivity, specificity, and prevalence. Kappa. Quantify interrater agreement. Analyze, graph and present your scientific …
T test calculator - GraphPad
Analyze, graph and present your scientific work easily with GraphPad Prism. No coding required.
Home - GraphPad
QuickCalcs Join the thousands of scientists that use one of our 25+ online calculators to run quick statical tests every day. Ready to start using Prism for free today? No commitment or credit card …
GraphPad QuickCalcs: Chemical and radiochemical calculators
Create and dilute molar solutions. Convert between moles and grams. EC anything from EC 50. Analyze, graph and present your scientific work easily with GraphPad Prism. No coding required.
GraphPad QuickCalcs: Random number calculators
Randomly assign subjects to groups. Simulate data by generating random numbers. Randomly select a subset of subjects. Analyze, graph and present your scientific work easily with GraphPad Prism. No …
Linear regression calculator - GraphPad
Linear regression is used to model the relationship between two variables and estimate the value of a response by using a line-of-best-fit. This calculator is built for simple linear regression, where only …
GraphPad QuickCalcs: Statistical distributions and interpreting P values
Binomial, Poisson and Gaussian distributions. Interpret a P value (correct for multiple comparisons and prior probability). Compare two fits with F test or AICc. Analyze, graph and present your scientific …
Outlier calculator - GraphPad
Free web calculator provided by GraphPad Software. Performs Grubbs' test Extreme Studentized Deviate (ESD) method. Clear results with links to extensive explanations.