Online statistical calculators
Statistics
Choose a calculator below. Each page includes a short method explanation, input requirements, parameter options, results and a concise interpretation. No login is required.
Use carefully
These calculators are for teaching, preliminary checks and research reporting support. Confirm assumptions, study design and reporting standards before final analysis.
These calculators are for teaching, preliminary checks and research reporting support. Confirm assumptions, study design and reporting standards before final analysis.
T-Tests
T-Test for 2 Independent Means
Compare a continuous outcome between two independent groups.
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Paired Samples T-Test
Compare paired or before-after continuous measurements.
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One-Sample T-Test
Compare one sample mean with a known or hypothesized population mean.
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