Cubic Inches Calculator: Box Volume
Find the volume of a box in cubic inches from its length, width and height, with cubic feet, liters, gallons and cubic meters.
Cubic inches
960in³
Cubic feet
0.5556ft³
Liters
15.732L
US gallons
4.156gal
Cubic meters
0.01573m³
Cubic inches = length × width × height (in inches); cubic feet = cubic inches ÷ 1,728
How to calculate cubic inches
Cubic inches measure the volume of a box or space: length × width × height, all in inches. Shippers, packers and engineers use cubic inches for small parcels, and convert to cubic feet for freight.
How to calculate cubic inches
Cubic inches = length × width × height (in inches). A 12 × 10 × 8 in box is 960 in³.
Cubic inch conversions
| From | To | Rule |
|---|---|---|
| Cubic inches | Cubic feet | ÷ 1,728 |
| Cubic inches | Liters | × 0.016387 |
| Cubic inches | US gallons | ÷ 231 |
| Cubic feet | Cubic inches | × 1,728 |
So the 960 in³ box is 0.556 ft³, 15.7 liters or 4.16 US gallons. Carriers bill parcels on dimensional weight: see the dimensional weight calculator. For containers and sea freight, use the CBM calculator.
Copy the result, or save it as a PDF to attach to an email or a purchase file. Nothing you type leaves your browser.
Features
- Inches, feet, cm or mm
- Cubic inches and cubic feet
- Liters and US gallons
- Cubic meters
- Several boxes at once
- Copy or PDF
Frequently asked questions
How many cubic inches are in a cubic foot?
1,728, because a cubic foot is 12 × 12 × 12 inches.
How do I convert cm to cubic inches?
Choose centimeters as the unit and enter the sizes; the calculator converts. One cubic inch is 16.387 cubic centimeters.
How many cubic inches are in a gallon?
A US gallon is exactly 231 cubic inches.
Is the calculator free?
Yes. No sign up. It runs in your browser, and you can copy the result or save it as a PDF.