Cubic Feet Calculator (ft³)

Enter length, width and height in feet or inches and get the volume in cubic feet, plus automatic conversions to cubic meters and liters. Share, copy or print the prefilled results and reuse deep links.

Inputs

Dimensions

Tip: Use decimals or scientific notation (e.g. 1e-3). Toggle “More precision” for six significant figures.

Results

Cubic feet (ft³):
Cubic meters (m³):
Liters (L):
Enter dimensions and click Calculate to populate results.

Volume converter

Update any field to convert between cubic feet, cubic meters and liters.

FAQs

What is the formula for cubic feet?

Multiply length × width × height. Ensure all dimensions use the same unit (feet or inches). If using inches, convert inches ÷ 12 to feet first.

How do I convert cubic feet to cubic meters or liters?

1 ft³ ≈ 0.0283168 m³. Multiply ft³ by 0.0283168 for m³, or by 28.3168 for liters. The converter above does this automatically.

How precise are the results?

We round to three significant figures by default. Enable “More precision” to show six significant figures. Enter scientific notation (e.g. 1e-3) for very small values.