Square Meters Calculator

Calculate square meters from length and width, circles, multiple areas, or known area conversions. Convert square meters to square feet, square yards, square inches, hectares, acres, and estimate material quantity, waste, and cost.

Calculate Square Meters

Square Meters = Length in Meters × Width in Meters. Square Meters With Waste = Net Square Meters × (1 + Waste Percentage).
Your result will appear here.

How the square meters calculator works

Length and width mode:
The calculator converts your dimensions into meters, then multiplies length by width.

Multiple areas mode:
The calculator multiplies one area by the number of same-size areas.

Known area mode:
The calculator converts your known area into square meters, square feet, square yards, hectares, acres, and more.

Circular area mode:
The calculator uses diameter to estimate circular square meters and perimeter.

Why use a square meters calculator?

A square meters calculator helps estimate area for rooms, homes, apartments, land, floors, walls, ceilings, patios, slabs, landscaping, roofing, paint, tile, carpet, and other projects.

It can help calculate square meters, square feet, square yards, square centimeters, hectares, acres, perimeter, material quantity, waste, material cost, labor cost, and estimated total cost.

What your result means

Your result shows net square meters, square meters with waste, square feet, square yards, square inches, square centimeters, hectares, acres, perimeter, material units, material cost, labor cost, and estimated total cost.

Square meters formulas

Frequently asked questions

How do I calculate square meters?

Multiply length in meters by width in meters. For example, a 5 meter by 4 meter area has 20 square meters.

How many square feet are in a square meter?

One square meter equals about 10.7639 square feet.

How many square meters are in a hectare?

One hectare equals 10,000 square meters.

How do I convert square meters to acres?

Divide square meters by 4,046.8564. For example, 4,046.8564 square meters equals 1 acre.

Is this square meters calculator exact?

No. It is an estimate. Actual area and material needs can vary by shape, cuts, overlap, trimming, openings, product size, waste, and installation method.