Enter the 3 sides of a triangle into the calculator. The calculator will evaluate and display the area using heron’s formula.
Heron’s Formula
The following formula is used to calculate the area of a triangle.
area = 0.25 * √((a + b + c) * (-a + b + c) * (a – b + c) * (a + b – c))
- Where a, b, and c are the lengths of the sides of the triangle.
Heron’s Formula Defintion
Heron’s formula states that the area of a triangle can be calculated using the 3 lengths of the side of that triangle.
Heron’s Formula Example
How to calculate heron’s formula?
- First, measure side A.
Measure the length of side A.
- Next, measure side B.
Measure the length of side B.
- Next, measure side C.
Measure the length of side C.
- Finally, calculate the area.
Using heron’s formula, calculate the area of the triangle.
FAQ
Heron’s formula is a formula derived from trigonometric equations that can be used to calculate the area of a triangle given the 3 lengths of the side of that triangle.
Simply measure the 3 lengths of the triangle, and plug the values into the formula above to calculate the area.

