Math
Triangle Area Calculator
Calculate a triangle’s area from its base and perpendicular height.
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How this calculation works
Calculate a triangle’s area from its base and perpendicular height. Enter your values, select Calculate, then review the result. You can change any value and calculate again.
Formula used
Area = base × perpendicular height ÷ 2
Good to know
Results are estimates for informational purposes.
Example calculation
10 × 6 ÷ 2 = 30
How to use this calculator
- Enter your values, select Calculate, then review the result. You can change any value and calculate again.
- Check units and time periods before comparing two results.
- Change one input at a time to understand its effect.
Frequently asked questions
What does the Triangle Area Calculator calculate?
Calculate a triangle’s area from its base and perpendicular height. The result is calculated from the values you enter and the formula shown on this page.
Which assumptions does the Triangle Area Calculator use?
It applies Area = base × perpendicular height ÷ 2. Values, fees, rules or timing not represented by an input are not added automatically.