Right Triangle Area Calculator

Right Triangle Area Calculator

Calculate the area and supporting measurements of a right triangle from its base and height.

Last updated: June 2026 | By Patchworkr Team

Triangle Dimensions
Area
-
Enter a positive base and height
Hypotenuse
-
Perimeter
-
Angles
-

Enter a real number.

Formula

The area of a right triangle is half the product of its perpendicular legs.

A = 1/2 × b × h

The hypotenuse is computed from the same base and height using the Pythagorean theorem.

How to Use

Enter the two perpendicular sides of the right triangle. The calculator then returns area, hypotenuse, perimeter, and the acute angles.

  1. Enter the base.
  2. Enter the height.
  3. Read the full triangle summary from the result card.

Example

With base 6 and height 8, the area is 24 and the hypotenuse is 10.

The triangle is the classic 6-8-10 right triangle.

Notes

Zero or negative dimensions are rejected before the square root is evaluated.

The angle calculations use the two legs only, which matches the right triangle geometry exactly.

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