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Cubic feet of a box or a cylinder measured in inches, feet, yards, centimeters or meters, with cubic yards, gallons, liters and bag counts.
With these inputs:
| Result | Value |
|---|---|
| Cubic feet | 32 cu ft |
| Cubic yards | 1.19 yd³ |
| U.S. gallons | 239.4 gal |
| Bags of 2 cu ft | 16 bags |
| Cubic inches | 55,296 cu in |
| Liters | 906.1 L |
| Cubic meters | 0.906 m³ |
NIST Handbook 44, Appendix C: 1 cubic foot = 1,728 cubic inches = 28.317 liters = 7.4805 U.S. gallons, and 27 cubic feet = 1 cubic yard.
Bagged soil, mulch, gravel and sand are sold in cubic feet, and so are planters, raised beds and storage bins. Enter the three dimensions in any unit — inches, feet, yards, centimeters or meters — for a box, or the diameter and height for a round planter or tube, and the calculator returns cubic feet, cubic inches, cubic yards, gallons, liters and the number of bags to fill it. Conversions use the exact NIST Handbook 44 values.
Multiply length × width × height with all three in feet. An 8 × 4 ft raised bed 1 ft deep is 8 × 4 × 1 = 32 cubic feet. If you measured in inches, multiply the three numbers and divide by 1,728.
27 cubic feet (3 ft × 3 ft × 3 ft). So 32 cubic feet is 32 ÷ 27 = 1.19 cubic yards.
Multiply the three dimensions in inches and divide by 1,728, the number of cubic inches in a cubic foot. A 24 × 18 × 12 in planter holds 5,184 ÷ 1,728 = 3 cubic feet.
7.48 U.S. gallons (NIST: 7.480 519). A 4 × 2 × 1 ft box holds 8 cu ft, or about 59.8 gallons; 1 cu ft is also 28.3 liters.
16 bags of 2 cu ft, 11 bags of 3 cu ft or 32 bags of 1 cu ft. Divide the cubic feet by the bag size printed on the bag and round up.
Need the whole roof at once? The free roofing calculator works out roof area, squares, shingle bundles, underlayment, drip edge, ridge cap and installed cost from one set of measurements.