Triangle Area
GEOMETRY
Triangle Area
Find triangle area from a base and its height.
UNDERSTAND YOUR RESULT
How it works
Find triangle area from a base and its height.
THE CALCULATIONbase × height / 2
Using this calculator
Enter base, perpendicular height. base × height / 2.
What to keep in mind
Use the same length unit for all lengths. Areas use squared units and volumes use cubed units. Diagrams are not to scale; inputs must satisfy the shape’s geometry.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.