How to convert cubic feet to litres
One cubic foot equals 28.3168 litres, so multiply the number of cubic feet by 28.3168:
L = ft³ × 28.3168
ft³ = L ÷ 28.3168 (1 L = 0.035315 ft³)
Example: 5 ft³ → 5 × 28.3168 = 141.584 L.
Going the other way, divide by 28.3168, or multiply by 0.035315.
Everyday values
| Cubic feet | Litres | For example |
|---|---|---|
| 1 ft³ | 28.3168 L | one cubic foot |
| 5 ft³ | 141.584 L | a small chest freezer |
| 20 ft³ | 566.337 L | a large fridge-freezer |
When you need this conversion
Refrigerators, freezers and car boots in the US are rated in cubic feet. One cubic foot is 28.3 litres, so a 20 ft³ fridge holds about 566 litres.
Cubic foot to litre conversion table
| ft³ | L | ft³ | L |
|---|---|---|---|
| 1 ft³ | 28.3168 L | 13 ft³ | 368.119 L |
| 2 ft³ | 56.6337 L | 14 ft³ | 396.436 L |
| 3 ft³ | 84.9505 L | 15 ft³ | 424.753 L |
| 4 ft³ | 113.267 L | 16 ft³ | 453.07 L |
| 5 ft³ | 141.584 L | 17 ft³ | 481.386 L |
| 6 ft³ | 169.901 L | 18 ft³ | 509.703 L |
| 7 ft³ | 198.218 L | 19 ft³ | 538.02 L |
| 8 ft³ | 226.535 L | 20 ft³ | 566.337 L |
| 9 ft³ | 254.852 L | 21 ft³ | 594.654 L |
| 10 ft³ | 283.168 L | 22 ft³ | 622.971 L |
| 11 ft³ | 311.485 L | 23 ft³ | 651.287 L |
| 12 ft³ | 339.802 L | 24 ft³ | 679.604 L |
About the units
- Cubic foot (ft³): exactly 28.316846592 litres.
- Litre (L): one cubic decimetre (1,000 cm³).
Both are units of volume. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many litres are in one cubic foot?
One cubic foot is 28.3168 litres. One litre is 0.035315 cubic feet.
How do I convert cubic feet to litres?
Multiply the value in cubic feet by 28.3168. To go back, divide by 28.3168.
What is 5 ft³ in litres?
5 ft³ = 141.584 L.
What is 20 ft³ in litres?
20 ft³ = 566.337 L.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.