Calculate the area of a triangle using the base and height. Also works with three side lengths using Heron's formula.
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Enter Your Measurements
Results
Area
30.00
sq units
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Formula
Area = (Base × Height) / 2
How to Use This Calculator
How to Use
- 1
Enter the base of the triangle.
- 2
Enter the height (perpendicular to the base).
- 3
Click calculate for the area.
Frequently Asked Questions
Frequently Asked Questions
What is height in a triangle?
Height is the perpendicular distance from the base to the opposite vertex (corner). It's always at a 90-degree angle to the base.
Can I use any side as the base?
Yes! You can use any side as the base, as long as you use the perpendicular height to that side.
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About This Calculator
This calculator uses the formula: Area = (Base × Height) / 2. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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