CBM Calculator (Centimeters)
Enter your box dimensions in centimeters to get the CBM (cubic meters) and cubic feet of your carton.
CBM from centimeters
Centimeters are the standard unit on carton labels and packing lists across most of the world, which makes this the most direct CBM calculation there is. Because a meter is exactly 100 cm, the conversion is a simple shift of the decimal point, no awkward factors.
How it works
Multiply the three sides in centimeters to get cubic centimeters, then divide by 1,000,000 (since 100³ = 1,000,000 cm³ per cubic meter):
CBM = (L × W × H in cm) ÷ 1,000,000
To cross-check in imperial, one CBM equals 35.3147 cubic feet.
Worked example
Using the page defaults, a carton 100 × 80 × 60 cm:
- Cubic centimeters:
100 × 80 × 60 = 480,000 cm³ - CBM:
480,000 ÷ 1,000,000 = 0.48 CBM - Cubic feet:
0.48 × 35.3147 = 16.951 ft³
So a single 100 × 80 × 60 cm carton is 0.48 CBM. Twenty of them total 9.6 CBM. Measure the outside of the box at its widest, and round each side up to the nearest whole centimeter before multiplying.
Centimeter-to-CBM reference
| Box (cm) | Cubic cm | CBM | Cubic ft |
|---|---|---|---|
| 30 × 30 × 30 | 27,000 | 0.027 | 0.953 |
| 60 × 40 × 40 | 96,000 | 0.096 | 3.390 |
| 100 × 80 × 60 | 480,000 | 0.480 | 16.951 |
| 120 × 100 × 100 | 1,200,000 | 1.200 | 42.378 |
Working in a different metric unit? The CBM calculator in mm divides by a billion instead, and the CBM calculator in meters needs no division at all. For inch-based cartons, use the CBM calculator in inches, and the main CBM calculator accepts any unit on each field.