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Triangle Area Calculator (Base and Height)

Find the area of a triangle from its base and height. The formula is area = base times height divided by 2, shown with a clear diagram of the triangle.

Input

Enter the base and height to automatically calculate the area of the triangle.

Result

base = 8height = 5

Area S

20

Base b

8

Height h

5

Calculated as area = base times height divided by 2.

Enter the base and height in the same unit. The area is in that unit squared.

How it works

  • The area is found with the formula area = base times height divided by 2.
  • The height is measured perpendicular to the base, not the length of a slanted side.
  • Enter the base and height in the same unit, such as cm. The area is in that unit squared.
  • Both the base and the height must be positive numbers.

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