Square Footage Calculator

Measure flooring, carpet, turf, tile, paint-prep sections, or room size fast with rectangle, triangle, circle, and L-shape area formulas.

Area Details
Choose a shape, enter feet-based dimensions, then add waste or pricing if you need a material estimate.

Used for cost estimate

Area Estimate
The waste-adjusted output is usually the number you order materials from.
Total square feet
168
Each section: 168 sq ft
Square feet with waste
181.44
8% extra included
Square yards
20.16
Square meters
16.86
Acres
0.0042
Estimated material cost
$771.12
When to add waste
Waste is normal for flooring, tile, turf, and similar materials.

Use a small waste allowance when pieces are easy to trim and reuse. Use more when you have diagonals, pattern matching, or fragile material.

For plain rectangular rooms, 5% can be enough. For tighter layouts or patterned tile, 8% to 12% is more common.

Popular use cases
Square footage is often the first number you need before ordering or pricing a job.

Use it for carpet, laminate, hardwood, turf, pavers, sod, insulation coverage, or quick room-size estimates during planning.

For concrete depth and cubic-yard ordering, use the concrete calculator. Square footage is area only, not volume.

Frequently Asked Questions

Related Calculators

Electricity & Appliance Cost Calculator

Calculate daily, monthly and annual appliance electricity costs from watts, usage and your price per kWh. Compare an alternative appliance’s energy use.

EV Charging vs Gas Cost Calculator

Compare electric vehicle charging costs with gasoline using charging losses, home/public charging rates, annual mileage and upfront charger or vehicle costs.

Tip Calculator

Calculate tips and split bills easily with friends and family