Square Footage Calculator
10 Shapes + Project BuilderCalculate area in sq ft, sq yd, sq m, acres, material waste & total project cost
Input Mode:
Area = Length × Width
2 Rectangle / Room Dimensions
Set all units:
Circle Measurement Method:
Please check your input dimensions.
3 Material Waste & Cost Estimator
Flooring • Tile • Paint • Sod
Recommended: 10% standard
%
Live Technical Blueprint Preview
Calculated Net Area
+ Add Area (×1)
180.00
sq ft (ft²)
Perimeter: 54.00 ft (648.0 in)
Total w/ Waste (10%)
+18.00 ft²
198.00 sq ft
Order amount incl. cuts/waste
Estimated Cost
w/ 10% waste
$891.00
@ $4.50 per sq ft
Multi-Unit Area Conversions
Click any unit to copy
Square Feet
ft²
180.00
Square Yards
yd²
20.00
Square Meters
m²
16.7225
Square Inches
in²
25,920
Square Centimeters
cm²
167,225
Acres
ac
0.004132
Step-by-Step Math Breakdown
Decimal FeetMulti-Room Project Area Estimator
2 RoomsCombine multiple rooms, zones, or subtract cutouts (like kitchen islands or stairs) for a complete project total.
| Room / Zone Name | Shape | Dimensions | Type | Net Area (ft²) | Area w/ Waste | Est. Cost | Action |
|---|
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