Heron's Formula Calculator
Result
Heron's Formula Calculator Calculate the area of a triangle from its three side lengths using Heron's formula. — free online calculator.
Formula
- Heron's Formula Calculator calculates its result from Side a, Side b, Side c. It uses the formula sqrt(((a+b+c)/2)*(((a+b+c)/2)-a)*(((a+b+c)/2)-b)*(((a+b+c)/2)-c)). Change any input to recalculate the result instantly.
- The main inputs are Side a, Side b, Side c. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Heron's Formula
- Side a: 5
- Side b: 6
- Side c: 7
Using Side a = 3, Side b = 4, Side c = 5, the calculated result is 6.
Sample result: Calculating…
Frequently asked questions
What does the Heron's Formula calculate?
Heron's Formula Calculator Calculate the area of a triangle from its three side lengths using Heron's formula. — free online calculator.
Which values should I enter?
Enter Side a, Side b, Side c using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: sqrt(((a+b+c)/2)*(((a+b+c)/2)-a)*(((a+b+c)/2)-b)*(((a+b+c)/2)-c)).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.