Convert Cubic Foot to Liter (ft³ → L)
The cubic foot is the American standard for HVAC capacity, natural gas billing, and refrigerator volume.
Cubic Foot to Liter Conversion Table
10 common values| Cubic Foot | Liter |
|---|---|
| 1 ft³ | 28.316847 L |
| 2 ft³ | 56.633693 L |
| 5 ft³ | 141.58423 L |
| 10 ft³ | 283.16847 L |
| 20 ft³ | 566.33693 L |
| 50 ft³ | 1,415.8423 L |
| 100 ft³ | 2,831.6847 L |
| 200 ft³ | 5,663.3693 L |
| 500 ft³ | 14,158.423 L |
| 1,000 ft³ | 28,316.847 L |
How to Convert Cubic Foot to Liter Manually
Step by StepConverting cubic feet to liters is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.
- 1Take your value in cubic feetStart with the number of cubic feet (ft³) you want to convert.
- 2Multiply by 28.316847The conversion factor from ft³ to L is 28.316847. Multiply your value by this number.
- 3Read the result in litersThe result is your value in liters (L).
Formula
Multiply the value in cubic feet by 28.316847. For the reverse direction, multiply by 0.035315.
L = ft³ × 28.316847ft³ = L × 0.035315Tips
Use these in everyday conversions- 1 ft³ = 28.317 L = 0.0283 m³.
- CFM to m³/h: multiply CFM by 1.699.
- 1 m³ ≈ 35.3 ft³.
Common Mistakes
Avoid these- Confusing ft³ with ft² in US real-estate contexts.
- Using 28 L instead of 28.32 L in precision HVAC calculations.
- Mixing CCF (100 cubic feet) with CFM (cubic feet per minute) on utility bills.
About Cubic Foot and Liter
What is the Cubic Foot?
The cubic foot equals approximately 28.317 liters (or exactly 1,728 cubic inches) and is the American standard volume unit for HVAC capacity, natural-gas billing, refrigerator interior volume, and bulk material like concrete or mulch. American gas utilities measure delivered gas in 'CCF' (hundred cubic feet) or 'MCF' (thousand cubic feet), even when the customer thinks in terms of monthly bills. Refrigerators are advertised by their interior cubic-foot capacity (typical home unit: 18–25 ft³). Air-conditioning systems are rated in CFM (cubic feet per minute) airflow. Concrete is sometimes priced by the cubic yard (27 ft³), and mulch and topsoil are often sold by cubic foot bags. The cubic foot relates to the cubic yard (27 ft³ = 1 yd³), the cubic inch (1,728 in³ = 1 ft³), the cubic meter (1 ft³ ≈ 0.0283 m³), and the gallon (1 ft³ ≈ 7.481 US gal).
- US air-conditioning and ventilation flow (CFM)
- US natural gas consumption
- Refrigerator and freezer capacity in the US
A typical US fridge is 20 cu ft (566 L). US HVAC flow rated in CFM. US residential gas billed per 100 cu ft (CCF).
What is the Liter?
The liter equals exactly 1 cubic decimeter (1 dm³ = 0.001 m³) and is the everyday metric unit for liquids worldwide. Adopted as part of the metric system in the 1790s, the liter is used universally for beverages, fuel, household chemicals, and cooking liquids — except in the United States where gallons and fluid ounces dominate. The liter has special connection to mass: pure water at 4°C has almost exactly 1 kg per liter, a relationship designed into the metric system. Soda, milk, and water bottles in metric countries come in 0.5 L, 1 L, 1.5 L, and 2 L sizes. The liter relates to the milliliter (1,000 mL = 1 L), the cubic meter (1,000 L = 1 m³), the US gallon (1 L ≈ 0.264 gal), and the UK gallon (1 L ≈ 0.220 imp gal). Although not strictly an SI base unit, the liter is one of the most-used metric units globally.
- Bottled beverages and milk in Europe
- Petrol and diesel pricing in metric countries
- Engine displacement (car engines rated in litres)
A standard European petrol-car fuel tank is 50–60 L. A 2.0 L engine has a 2 litre displacement. A typical home boiler holds 150 L of hot water.