Pythagorean Theorem Calculator
Local ProcessingCalculate hypotenuse c = √(a² + b²) of a right triangle from leg lengths a and b.
How It Works & Processing Standards
Enter values above to calculate results automatically. Check each input field for guidance and units.
Example: Leg a = 3, Leg b = 4 → 5
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Enter the two sides next to the right angle to get the hypotenuse or the two acute angles.
What You Can Do
- Hypotenuse
- c = √(a² + b²) — a diagonal from width and height.
- Angles
- The two non-right angles in degrees (they add up to 90°).
How to Use Pythagorean Theorem Calculator
- 1Choose a calculationPick hypotenuse or angles.
- 2Enter the two legsBoth must be greater than 0.
- 3Read the resultLengths use your unit; angles are in degrees.
Examples
Hypotenuse of 6 and 8
Input: a 6, b 8
Result: 10
Angles with equal legs
Input: a 1, b 1 (angles)
Result: 45°, 45°
Common Use Cases
- A screen diagonal from its width and height
- The slope length of a ramp or staircase
- Checking a right angle on site (3-4-5 rule)
Frequently Asked Questions (FAQ)
What if I know the hypotenuse and one leg?
Use the Triangle Calculator (SSS etc.) or b = √(c² − a²).
Can the units differ?
No, both legs must use the same unit, and so does the result.