Listing sizes in inches and centimeters
Paste a size line like “30 × 20 × 10 cm, 1.2 kg” and get it in inches and pounds, or the other way round. Pick the rounding and copy the result straight into your listing.
Product Unit Converter
No sign-up. What you type never leaves your device.
The tool finds numbers followed by a unit, such as 30 cm, 1.2 kg, 16 oz or 30 x 20 x 10 cm, and leaves the rest of your text as it is. Read the result before you paste it into a listing: a phrase like “10 in blue” is read as inches.
What was converted
| Unit | Value |
|---|
How it’s calculated
- Length:
1 in = 2.54 cmand1 ft = 12 in = 30.48 cm, exactly. - Weight:
1 lb = 0.45359237 kgand1 oz = 1/16 lb = 28.349523125 g, exactly. - Volume:
1 US fl oz = 29.5735295625 ml,1 UK fl oz = 28.4130625 ml,1 US cup = 8 US fl ozand1 US gallon = 3.785411784 L, exactly. - To imperial, lengths become inches, weights become pounds (ounces under 1 lb) and volumes become fluid ounces. To metric, lengths become centimeters, weights kilograms (grams under 1 kg) and volumes milliliters (liters from 1,000 ml).
- Rounding happens last, on the converted number. “Always up” suits package sizes, so a box is never listed smaller than it is.
- In your text, a comma followed by exactly three digits, as in 1,200 g, is read as a thousands separator. Any other comma between digits is a decimal mark, so 1,5 kg is 1.5 kg.
Everything you need, nothing you don't
Whole size lines
Converts every measurement in a line, such as 30 × 20 × 10 cm, 1.2 kg, and keeps the rest.
Length, weight, volume
mm, cm, m, in and ft; g, kg, oz and lb; ml, L, US and UK fl oz, cups and gallons.
Exact constants
1 in = 2.54 cm and 1 lb = 0.45359237 kg, the exact definitions.
Rounding for listings
0 to 3 decimals, rounded to nearest, always up or always down.
Both or one
Show new units in brackets after the originals, or replace them.
Copy result
Copy the converted text straight into your listing.
Done in 3 steps
Paste your sizes
One size line per line, such as 30 × 20 × 10 cm, 1.2 kg.
Choose the units
Imperial or metric, and the rounding you want.
Copy the result
Paste it into your listing, product page or spec sheet.