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Triangle Calculator

Use our free triangle calculator to find the area of any triangle. Enter the base and height and get the area instantly using the formula A = ½ × b × h.

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Base (b)

Height (h)

Formula

A triangle is a polygon with three sides and three angles. The area of any triangle can be found using the formula A = ½ × b × h, where b is the base and h is the perpendicular height.

A = ½ × b × h

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Enter the base length of the triangle.
2Enter the perpendicular height of the triangle.
3Click Calculate to compute the area.
4Area = ½ × base × height.

Examples

Triangle with base 10 and height 6

1.Enter base = 10, height = 6.
2.Area = ½ × 10 × 6 = 30 units².

Result: 30.0000 units²

Triangle with base 7.5 and height 4.2

1.Enter base = 7.5, height = 4.2.
2.Area = ½ × 7.5 × 4.2 = 15.75 units².

Result: 15.7500 units²

Frequently Asked Questions

Area = ½ × base × height. This works for any triangle as long as you know the base and perpendicular height.

No. The height is the perpendicular distance from the base to the opposite vertex (apex), not necessarily a side length.

Yes. For a right triangle, the base and height are the two legs that form the right angle.

This formula works for any triangle. Just measure the perpendicular height from the base to the opposite vertex.

Any consistent unit system works. If base and height are in inches, the area is in square inches.

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CalculateMe Team

Last updated: 2026-07-13

Triangle Calculator - Area of Any Triangle | CalculateMe | CalculateMe