Guides/Kg ↔ lbs & cm ↔ inches
Kg to lbs and cm to inches
Airline baggage limits, clothing size charts, and DIY plans often mix metric and US customary units. Two conversions cover most day-to-day needs: kilograms ↔ pounds and centimetres ↔ inches.
Exact conversion factors
- 1 kg = 2.2046226218 lb (commonly ≈ 2.20462 lb)
- 1 lb = 0.45359237 kg
- 1 inch = 2.54 cm (exact by definition)
- 1 cm = 1 ÷ 2.54 ≈ 0.3937008 in
How to convert
- kg → lb: multiply by 2.20462
- lb → kg: multiply by 0.45359237 (or divide by 2.20462)
- cm → in: divide by 2.54
- in → cm: multiply by 2.54
Worked examples
- Checked bag: 23 kg × 2.20462 ≈ 50.7 lb.
- Shipping label: 5 lb × 0.45359237 ≈ 2.27 kg.
- Laptop diagonal: 15.6 in × 2.54 = 39.624 cm.
- Height: 180 cm ÷ 2.54 ≈ 70.87 in ≈ 5 ft 10.9 in (70.87 ÷ 12 ≈ 5.91 ft).
- Shelf depth: 40 cm ÷ 2.54 ≈ 15.75 in.
Common mistakes
- Using “2.2” for kg→lb on tight airline limits — round carefully near the max.
- Mixing feet+inches with pure inches when dividing by 2.54.
- Confusing stone (UK) with pounds when reading older charts.
When to use which tool
- Unit Converter — Weight and Length tabs.
- Full metric ↔ imperial guide — volume and temperature too.
- °C ↔ °F — weather and ovens.
Convert online
Use the freeUnit Converterfor instant kg/lb and cm/in results. Private, no signup.
Related:Unit conversion·Celsius ↔ Fahrenheit