Math Tool ยท ๐Ÿ“

Area Calculator

Calculate the area of rectangles, circles, and triangles instantly. Free, accurate, no sign-up.

๐Ÿ“– Read the complete Area Calculator guide โ†’

Related Calculators

๐Ÿ”’ All calculations happen in your browser. No data is sent to any server. No sign-up required.
Area

Formula

Rectangle: A = w ร— h | Circle: A = ฯ€rยฒ | Triangle: A = ยฝbh

Example

Rectangle 5ร—3 = 15 mยฒ | Circle r=5 = 78.54 mยฒ

Frequently Asked Questions

What units does this use?

Any consistent unit โ€” cm, m, ft. Result is in the same unit squared.

How do I find area of an irregular shape?

Break it into rectangles, triangles, or circles and sum them.

What is the area of a square?

Same formula as rectangle โ€” side ร— side.

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