Carpet Quantity Estimator

Carpet Calculator

Free carpet calculator for room square footage, carpet rolls to order, and linear feet at your roll width. Add waste for pattern match and seaming.

Calculate Carpet Install Cost

Typical roll: 12 ft wide × 75 ft long (900 sq ft) · 10% waste for bedrooms

Carpet Rolls—

Floor Area—

Linear Feet—

Carpet Examples

Bedroom

12×14 ft · 12 ft roll

Living Room

15×20 ft · 12 ft roll

Hallway

4×24 ft runner

How the carpet calculator works

Floor area = length × width (converted to feet). Order area = floor area × (1 + waste%). Linear feet = order area ÷ roll width. Rolls = order area ÷ (roll width × roll length), rounded up.

Installers often use 12-foot goods for whole-house runs; verify roll dimensions on your product tag. For install pricing, use our flooring cost calculator or carpet installation cost calculator.

Carpet Calculator

Carpet Examples

Bedroom

Living Room

Hallway

How the carpet calculator works

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