T Test Calculator
Solve t = (x̄ − μ₀) / (s/√n) step by step — free t test calculator with worked examples, real-world defaults and instant answers.
One-sample t-test — t statistic, df and two-tailed p-value from raw data.
About T Test Calculator
The T Test Calculator solves t = (x̄ − μ₀) / (s/√n) for you with the full working shown — every substitution, every unit, every step, exactly the way a good teacher writes it on the board. The default data is a filling-machine check against a 10.0 nominal.
How to use T Test Calculator
- 1Enter your known values in the input fields (sensible real-world defaults are pre-filled).
- 2The tool substitutes them into t = (x̄ − μ₀) / (s/√n) and recomputes live.
- 3Read the answer in the result box, then expand the step-by-step solution to see the full working.
- 4Copy the method into your notebook, or change inputs to explore how the result behaves.
Why use T Test Calculator?
- ✓Solves t = (x̄ − μ₀) / (s/√n) instantly as you type — no submit button, no waiting
- ✓Step-by-step solution shown for every calculation, not just the final answer
- ✓Realistic example values pre-loaded so you can see a worked example immediately
- ✓100% free, no sign-up, runs entirely in your browser — your numbers never leave your device
- ✓Mobile-friendly and fast enough to use mid-homework or mid-lesson
Frequently asked questions
What formula does the T Test Calculator use?+
It uses t = (x̄ − μ₀) / (s/√n). The steps section shows the formula with your actual numbers substituted, so you can follow (and verify) every stage of the calculation rather than trusting a black box.
What should I keep in mind when using this calculator?+
The default data is a filling-machine check against a 10.0 nominal. A p-value is the probability of data this extreme IF the true mean were μ₀ — it is not the probability the hypothesis is true.
Is the T Test Calculator free to use?+
Completely free, with no sign-up or limits. All computation happens client-side in your browser, so it is fast, private, and works even on slow connections once the page has loaded.
Can I use this for homework, teaching or exam prep?+
That is exactly what it is built for. The step-by-step working mirrors how solutions are presented in class, so you can check homework, build worked examples for teaching, or practise method recall before exams.
Embed T Test Calculator on your website
Want T Test Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/t-test-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="T Test Calculator — ToolJolt" loading="lazy"></iframe>Related Science tools
Centripetal Force Calculator
Solve F_c = m·v² / r step by step — free centripetal force calculator with worked examples, real-world defaults and instant answers.
● LiveForce Calculator
Solve F = m · a step by step — free force calculator with worked examples, real-world defaults and instant answers.
● LiveFree Fall Calculator
Solve h = ½gt² , v = gt step by step — free free fall calculator with worked examples, real-world defaults and instant answers.
● Live