Triangle height calculator

Triangle height = twice its area divided by its base.

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Triangle area

Base length

Answer

…

Triangle height = twice its area divided by its base.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

The returned height is perpendicular to the chosen base. Enter area in squared units corresponding to the base-length unit.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Triangle height calculator

Triangle height = twice its area divided by its base.

The returned height is perpendicular to the chosen base. Enter area in squared units corresponding to the base-length unit.

Next: Basic calculator

A worked example

With triangle area = 24, base length = 8, the perpendicular height is 6.

Before you use the result

The returned height is perpendicular to the chosen base. Enter area in squared units corresponding to the base-length unit.

Example results for triangle area

These examples use Base length: 8. They are reference calculations, not recommended settings.

Triangle area	Perpendicular height
12	3
24	6
48	12

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