Square Footage Calculator
Calculate square footage for individual rooms or total multiple areas at once. Great for flooring, paint, carpet, landscaping, and renovation planning.
Rooms and Areas
Add multiple rooms to total flooring, paint, or renovation coverage.
Square Feet
0
Square Meters
0
Square Yards
0
Acres
0
Total Square Footage
1 areaTotal Square Feet
0
Total Square Meters
0
Total Square Yards
0
Total Acres
0
How to Use
- Choose the measurement unit you are working with, such as feet, inches, meters, centimeters, or yards.
- Add one or more rooms, then pick the shape that best matches each area.
- Enter the required dimensions for every room to see its area converted into square feet, square meters, square yards, and acres.
- Optional: enter a price per square foot to estimate your total flooring, painting, or material cost.
Frequently Asked Questions
How do I calculate square footage for a room?
For a rectangular room, multiply length by width. For other shapes like circles, triangles, trapezoids, or L-shaped spaces, use the matching formula. This calculator does that automatically once you enter the dimensions.
Can I add multiple rooms together?
Yes. Multi-room mode lets you add separate rooms or areas, calculate each one individually, and see the combined total square footage instantly.
What if my measurements are in meters or inches?
You can switch the input unit between feet, inches, meters, centimeters, and yards. The calculator converts everything automatically and shows the final area in multiple common units.
How much extra material should I buy?
For flooring, tile, carpet, or paint projects, many professionals recommend adding 5% to 15% extra for cuts, waste, and mistakes. The exact amount depends on the material and room layout.
Can I estimate project cost with square footage?
Yes. If you know the cost per square foot, enter it in the calculator to estimate the total project cost for all rooms combined.