Square Feet to CFT

Real-time conversion by area × thickness or by dimensions. No buttons — updates as you type.

Decimals:

Area

Tip: paste from a plan take-off; units can be ft² or m².

Thickness / Height

Area × height → volume in cubic feet.

How square feet → CFT works

Converting area to volume requires a thickness (height). The calculator converts your area to ft² (if necessary), your thickness to feet, then multiplies to get ft³. Alternatively, enter length × width × height and we multiply all three dimensions in feet.

Formulas

Area mode: ft³ = (area_ft²) × (height_ft)
Dimensions mode: ft³ = (length_ft) × (width_ft) × (height_ft)
Helpers: 1 in = 1/12 ft, 1 m = 3.28084 ft, 1 cm = 0.0328084 ft, 1 m² = 10.7639 ft², 1 ft³ = 0.0283168 m³

How to use

Choose Area × Thickness or Length × Width × Height.
Enter values and pick units (ft, in, m, cm). The result updates instantly.
Adjust the Decimals control for display precision.
Use Share result to copy a concise summary.

Frequently Asked Questions

How many sq ft is in CFT?

They measure different things. To relate them, you need a thickness (height). Formula: square feet = cubic feet ÷ height (in feet). Example: 50 ft³ spread 0.5 ft thick covers 100 ft².

How do you convert feet to CFT?

If you mean square feet to cubic feet, multiply area (ft²) by thickness/height (ft): ft³ = ft² × ft. If you have length × width × height (all in feet), multiply them to get ft³.

How do you calculate 1 cft?

1 cubic foot = 1 ft × 1 ft × 1 ft. It equals about 0.0283168 m³ or 28.3168 liters.

How to convert sqm to cft?

First multiply square meters by thickness in meters to get cubic meters, then convert: ft³ = (m² × m) × 35.3147. Example: 12 m² at 0.1 m thick → 1.2 m³ → 42.3776 ft³.