Navid MoazzezNavid Moazzez

Free Pythagorean Theorem Calculator (+ Guide)

A free Pythagorean theorem calculator that finds the missing side, the angles and the area, drawn to scale.

Navid Moazzezby Navid Moazzez·Updated Oct 3, 2026·2 min read·
Find the missing side
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Find the missing side of a right triangle, with its angles, area and a drawing to scale.

1

Your numbers

Fill in any 2 sides of a right triangle. c is the longest side, opposite the right angle.

2

Your result

Fill in the fields above to see your result.

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Paste the code into any page: WordPress, Webflow, Squarespace, Ghost or plain HTML. It's free with the credit under it, which links back to navid.me.

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