How do I calculate right triangle? Enter your numbers above and the result updates instantly. For example: Leg a: 6 · Leg b: 8 → Hypotenuse: 10.
Is this Right Triangle Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for right triangle. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.