Centimeters to Inches (cm to in)
Convert package dimensions from centimeters to inches. One centimeter is 0.3937 inches.
1 cm = 0.39 in
inches (in)
Quick reference
How to convert centimeters to inches
To convert centimeters to inches, multiply by the conversion factor:
In freight, this conversion comes up whenever your paperwork, carrier, or marketplace quotes volume or weight in different units than you measured. Getting it right keeps your dimensions and volume consistent across every quote.
Supplier cartons in cm, US carriers in inches
Factory packing lists from metric countries give carton dimensions in centimeters, but US parcel and LTL pricing runs on inches. Divide by 2.54 (or multiply by 0.3937): a 60 × 45 × 40 cm export carton becomes 23.62 × 17.72 × 15.75 in, which is 6,591 in³ — a dimensional weight of about 47.4 lb at the ground divisor of 139.
Do the conversion per dimension before multiplying, because that's how the carrier measures. Most parcel carriers also round each dimension to the nearest whole inch before computing DIM weight, so that 60 cm side is treated as 24 in, nudging the billed weight up slightly versus the raw math.
Freight-dimension checkpoints worth memorizing
A few cm-to-inch equivalents cover most freight paperwork: 100 cm ≈ 39.37 in (just over a meter stick), 120 cm ≈ 47.24 in (Euro-pallet length), and 240 cm ≈ 94.49 in — close to the ~92–94 in usable width inside ocean containers, which is why two Euro pallets fit side by side but two 48-in-long pallets loaded widthways don't.
For cubic conversions, don't square or cube 0.3937 by hand: 1 cm³ = 0.0610 in³, and dividing cm³ by 16.387 gives cubic inches directly.
Frequently asked questions
How do you convert centimeters to inches?
Multiply the number of centimeters by 0.39 to get inches. For example, 10 cm = 3.94 in.
How many inches are in one centimeter?
One cm equals 0.39 in.
Is cm to inches the same conversion?
Yes — cm to inches, cm to in all refer to converting centimeters to inches. The calculator above handles it instantly.
What is 1 cm in inches?
1 cm = 0.3937 in (exactly 1 ÷ 2.54). Ten centimeters is 3.94 in, and a meter (100 cm) is 39.37 in.
How do I convert cm³ to cubic inches?
Divide by 16.387 (since 2.54³ = 16.387). For example, a 6,000 cm³ carton is about 366 in³. Converting each linear dimension first and then multiplying gives the same answer.