Pythagorean Theorem Calculator
Find the hypotenuse of a right-angled triangle from the two shorter sides. Enter sides a and b, and the calculator returns c using the formula a…
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Find the hypotenuse of a right-angled triangle from the two shorter sides. Enter sides a and b, and the calculator returns c using the formula a squared plus b squared equals c squared.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (side a = 3, side b = 4), the results are: hypotenuse (c) 5.000.
Quick reference: side a vs result
Reference table based on the example values; it is not your calculation result.
| Side a | Hypotenuse (c) |
|---|---|
| 1.5 | 4.272 |
| 3 | 5.000 |
| 6 | 7.211 |
| 15 | 15.524 |
| 30 | 30.265 |
| 60 | 60.133 |
Frequently asked questions
What formula does this calculator use?
Hypotenuse (c) = sqrt(a^2+b^2). Variables: a = side a, b = side b.
What do I need to enter?
You need side a, side b. Results update as you type.
What is an example result?
With the default inputs (side a = 3, side b = 4), the results are: hypotenuse (c) 5.000.
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