Can I calculate other values?

Yes. Use our free Area Calculator to calculate any values instantly, or browse the quick reference table and nearby results on this page.

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Area of 3 x 1

The area of a 3 x 1 rectangle is 3.00 square units. Free area calculator with formulas.

3.00 square units

Formula: Length x Width = 3 x 1 = 3.00

Rectangle: A = width × height

Circle: A = π × r²

Triangle: A = ½ × base × height

Square: A = side²

What units does the area calculator use?

It uses generic square units; you can apply any unit of measurement.

Can I calculate area for irregular shapes?

This calculator handles standard geometric shapes only.

What is the formula for a circle area?

A = π × r² where r is the radius.

Quick links to common calculations: