Overview
The square meter calculator gives you the area of a rectangle or room quickly and converts it to square feet and square yards. Use it to estimate tiles, paint or flooring.
Formula
Area = length × width. If measuring in feet, multiply the result by 0.092903 to get square meters.
How it works
Measure length and width
Use the same unit for both dimensions, in meters or feet.
Enter the number of areas
If you have identical rooms, enter the count instead of repeating the calculation.
Read the area
The area appears in square meters, square feet and square yards.
Worked examples
Example 1: a 5×4 room
5 m × 4 m = 20 square meters, or about 215.28 square feet.
Example 2: two identical rooms
Two 5×4 rooms give 40 square meters in total.
Frequently asked questions
How do I calculate a non-rectangular room?
Divide it into rectangles or triangles, calculate each part and add them together.
How many square meters are in a square foot?
1 square foot = 0.092903 square meters, and 1 square meter = 10.7639 square feet.
Should I add a waste allowance?
Yes. When buying tiles or paint, add 5–10% for cuts and waste.
Can I use it to estimate flooring cost?
Calculate the area first, then multiply by the price per square meter or square foot.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.