1 cubic foot (ft³) = 1,728 cubic inches (in³). To convert, multiply by 1,728: in³ = ft³ × 1,728. For example, 5 ft³ = 8,640 in³.
in³ = ft³ × 1,728
Cubic feet to cubic inches table
| Cubic feet (ft³) | Cubic inches (in³) |
|---|---|
| 1 | 1,728 |
| 2 | 3,456 |
| 3 | 5,184 |
| 4 | 6,912 |
| 5 | 8,640 |
| 10 | 17,280 |
| 20 | 34,560 |
| 25 | 43,200 |
| 50 | 86,400 |
| 100 | 172,800 |
| 250 | 432,000 |
| 500 | 864,000 |
| 1,000 | 1,728,000 |
The two units
Cubic foot (ft³). A cube one foot on each side.
Cubic inch (in³). A cube one inch on each side: exactly 16.387064 cubic centimeters.
Because both units are defined in terms of the same base unit, the factor 1,728 is exact, not a rounded measurement.
Convert cubic feet to other units
- Cubic feet to liters — 1 ft³ = 28.31684659 L
- Cubic feet to milliliters — 1 ft³ = 28,316.84659 mL
- Cubic feet to cubic meters — 1 ft³ = 0.0283168466 m³
- Cubic feet to US gallons — 1 ft³ = 7.480519481 gal (US)
- Cubic feet to US quarts — 1 ft³ = 29.92207792 qt (US)
- Cubic feet to US pints — 1 ft³ = 59.84415584 pt (US)
- Cubic feet to US cups — 1 ft³ = 119.6883117 cup
- Cubic feet to US fluid ounces — 1 ft³ = 957.5064935 fl oz (US)
- Cubic feet to US tablespoons — 1 ft³ = 1,915.012987 tbsp
- Cubic feet to US teaspoons — 1 ft³ = 5,745.038961 tsp
- Cubic feet to imperial gallons — 1 ft³ = 6.228835459 gal (UK)
- Cubic feet to imperial pints — 1 ft³ = 49.83068367 pt (UK)
Convert other units to cubic inches
- Cubic inches to cubic feet
- Liters to cubic inches
- Milliliters to cubic inches
- Cubic meters to cubic inches
- US gallons to cubic inches
- US quarts to cubic inches
- US pints to cubic inches
- US cups to cubic inches
- US fluid ounces to cubic inches
- US tablespoons to cubic inches
- US teaspoons to cubic inches
- Imperial gallons to cubic inches
- Imperial pints to cubic inches
Questions people ask
- How many cubic inches are in a cubic foot?
- 1,728, exactly.
- How do you convert cubic feet to cubic inches?
- in³ = ft³ × 1,728. It is the same as dividing by 0.0005787037.
- How do you convert cubic inches back to cubic feet?
- ft³ = in³ ÷ 1,728. See cubic inches to cubic feet.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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