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Carpet Calculator — Room Area, Waste, Square Yards & Cost

Editable live calculator

Change any input — the result updates immediately

No hidden assumptions. Inputs, units and the working stay visible so you can check the calculation.

Room 1 length (ft) Room 1 width (ft) Room 2 length (ft) Room 2 width (ft) Room 3 length (ft) Room 3 width (ft) Waste allowance (%) Price unit Material price (optional)

Calculated result

22 sq yd

Measured area: 180 sq ft · 20 sq yd

Area with 10% allowance: 198 sq ft

Show the working

1. Total area = sum of entered rooms = 180 sq ft.
2. Order area = 180 × (1 + 10%) = 198 sq ft.
3. Square yards = 198 ÷ 9 = 22 sq yd.

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