Complete Guide
pythagoras.description.body
Pythagorean Theorem Calculator — Find Any Side Instantly
Use the Pythagorean theorem (a² + b² = c²) to find any side of a right triangle. Free calculator with diagrams.
pythagoras.hypotenuse
5
pythagoras.perimeter
12
pythagoras.area
6
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pythagoras.chartProperties
pythagoras.chartProperties
| pythagoras.tableProperty | pythagoras.tableFormula | Value |
|---|---|---|
| pythagoras.propertySideA | pythagoras.formulaSideA | 3 |
| pythagoras.propertySideB | pythagoras.formulaSideB | 4 |
| pythagoras.propertyHypotenuse | pythagoras.formulaHypotenuse | 5 |
| pythagoras.propertyPerimeter | pythagoras.formulaPerimeter | 12 |
| pythagoras.propertyArea | pythagoras.formulaArea | 6 |
Worked Example
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Frequently Asked Questions
How does this calculator work?
The Pythagorean Theorem Calculator calculator takes your inputs and applies the standard formula. All calculations run instantly in your browser — no data is sent to a server.
Is this calculator free?
Yes, completely free. No sign-up, no account, no hidden fees. We do not track or store your data.
How accurate are the results?
Results are based on standard formulas and current 2026 rates/rules. For legal or tax decisions, please consult a qualified professional.
Can I use this on mobile?
Yes. The calculator is fully responsive and works on all devices — desktop, tablet, and mobile.
Do you save my inputs?
Inputs are saved locally in your browser (localStorage) for convenience. Nothing is transmitted or stored on our servers.
Disclaimer: This calculator provides estimates for informational purposes only. Verify all results with a qualified professional before making financial, health, or legal decisions.