Cubic Feet Unit Converter
One value in, six equivalents out. Type any cubic feet number and watch every volume unit update.
| Unit | Value |
|---|---|
| Cubic Feet (ft³) | 0.0000 |
| Cubic Yards (yd³) | 0.0000 |
| Cubic Meters (m³) | 0.0000 |
| Cubic Inches (in³) | 0.00 |
| US Gallons | 0.000 |
| Liters (L) | 0.000 |
Which Unit Should You Use?
Cubic feet (ft³) is the standard volume unit for US construction, landscaping and appliance specifications. Cubic yards (yd³) is the unit suppliers quote for bulk deliveries of concrete, soil and mulch — a cubic yard truckload is easier to picture than 27 separate cubic feet. Cubic meters (m³) and CBM are the units international freight and shipping quotes use, since most countries outside the US measure volume metrically. Cubic inches (in³) fits small objects — engine displacement, speaker enclosures, packaging. US gallons and liters measure liquid volume — tanks, aquariums and water storage.
Full Conversion Reference
| ft³ | yd³ | m³ | in³ | US gal | L |
|---|---|---|---|---|---|
| 1 | 0.0370 | 0.0283 | 1,728 | 7.48 | 28.32 |
| 2 | 0.0741 | 0.0566 | 3,456 | 14.96 | 56.63 |
| 5 | 0.1852 | 0.1416 | 8,640 | 37.40 | 141.58 |
| 10 | 0.3704 | 0.2832 | 17,280 | 74.81 | 283.17 |
| 25 | 0.9259 | 0.7079 | 43,200 | 187.01 | 707.92 |
| 50 | 1.8519 | 1.4158 | 86,400 | 374.03 | 1,415.84 |
| 100 | 3.7037 | 2.8317 | 172,800 | 748.05 | 2,831.68 |
| 250 | 9.2593 | 7.0792 | 432,000 | 1,870.13 | 7,079.2 |
| 500 | 18.5185 | 14.1584 | 864,000 | 3,740.26 | 14,158.4 |
| 1000 | 37.0370 | 28.3168 | 1,728,000 | 7,480.52 | 28,316.8 |
Conversion Factors
- 1 ft³ = 0.037037 yd³ (÷27)
- 1 ft³ = 0.0283168 m³
- 1 ft³ = 1,728 in³
- 1 ft³ = 7.48052 US gallons
- 1 ft³ = 6.22884 Imperial gallons
- 1 ft³ = 28.3168 liters
- 1 ft³ = 0.0283168 CBM (cubic meters used in freight quotes)
Common Conversion Mistakes
Three mistakes cause most conversion errors. First, mixing units before multiplying — measuring length in feet and width in inches, then multiplying them directly, gives a meaningless number. Convert every dimension to the same unit first. Second, confusing cubic yards with square yards — a cubic yard is a volume (27 ft³), while a square yard is an area (9 ft²). Third, rounding too early — round only the final answer, not intermediate steps, or small errors compound across a multi-step conversion.
Frequently Asked Questions
How many units does this convert to?
Six: cubic feet, cubic yards, cubic meters, cubic inches, US gallons, and liters.
Is the conversion accurate?
Yes — we use the standard conversion factors: 1 ft³ = 0.0283168 m³ = 7.48052 US gal = 28.3168 L.
Why don't decimals match my other calculator?
Most calculators round at different decimal places. We use 4 decimals for ft³ outputs; results may differ by ±0.001.
Does the converter handle Imperial gallons?
Yes — see the dedicated gallons page for both US and Imperial gallon conversions.
Can I convert from cubic meters here?
Use the cubic meters page for bidirectional ft³ ↔ m³ conversion.
What's the relationship between liters and m³?
1 cubic meter = 1,000 liters exactly.
Are these US or Imperial?
Gallons shown are US gallons. Other units (ft³, m³, in³, L) are universal.
Why is 1 ft³ = 1,728 in³?
Because a cube 12 inches on each side contains 12 × 12 × 12 = 1,728 cubic inches.
How does cubic feet relate to CBM in freight quotes?
CBM stands for cubic meters — the standard volume unit in international shipping. 1 CBM equals 35.315 cubic feet, so divide your cubic feet total by 35.315 to get CBM for a freight quote.
Which unit should I use for a small object like a speaker box?
Cubic inches or cubic feet. Speaker and subwoofer enclosures are conventionally sized in cubic feet, but the raw multiplication is easier in inches first — see the storage calculator for a dedicated box volume tool.