Pythagorean Theorem Calculator
Solve a² + b² = c². Enter exactly two of a, b, and c.
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How to use Pythagorean Theorem Calculator
- Enter leg a (leave blank to solve), leg b (leave blank to solve), hypotenuse c (leave blank to solve). Leave a field blank only when the page says the value is missing.
- Read the result rows under the form. Errors appear in the status line. Nothing is uploaded.
- Rounding follows IEEE floating point in this browser unless the page says it uses integers or BigInt.
Pythagorean Theorem Calculator
Solve any side
| Computes | Solve a² + b² = c². Enter exactly two of a, b, and c. |
|---|---|
| Includes | Solve any side |
| Includes | a² + b² = c² |
| Engine | geometry |
| Upload | None |
| Advice | Arithmetic only |
What Pythagorean Theorem Calculator is
Leave the unknown side blank. c must be greater than each known leg. Sides must be greater than 0.
The formula runs in this tab. CZNull does not receive the numbers.
Entities and related jobs
Solve a² + b² = c². Enter exactly two of a, b, and c. Named features: Solve any side, a² + b² = c².
See also Triangle Calculator, Distance Between Two Points, Rectangle Calculator, Circle Calculator.
Use cases
Ladders, ramps, and screen diagonals. 3-4-5 and multiples stay exact in floating point here.
Limits
Invalid input appears in the status line. IEEE floating point applies unless a row says otherwise. CZNull does not receive the numbers.
Pythagorean Theorem Calculator questions
Does this page upload my numbers?
No. The formula runs in the page you opened. CZNull does not receive the values.
What does Pythagorean Theorem Calculator compute?
Leave the unknown side blank.
Why is this its own URL?
Search queries name this job. Nearby modes stay on their own pages so inputs do not mix. Related calculators are linked below Pythagorean Theorem Calculator.
How do I solve for c?
Enter a and b. Leave c blank, not 0.
Is 3-4-5 exact?
Yes. hypot(3, 4) is 5 here.
Can I treat the result as official?
No. Rounding and real-world rules can differ. Use the page to check the arithmetic.