LBS to KG Converter

Convert pounds to kilograms: 1 lb = 0.453592 kg. Exact factor, formula and a conversion chart.

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Result

1 lb =0.453592 kg
1 lb
0.453592 kg
1 kg
2.20462 lb
How it's calculated

kilograms = pounds × 0.453592

To convert lb to kg, divide by 2.20462.

lb in every unit

milligram453,592 mg
gram453.592 g
kilogram0.453592 kg
tonne0.000453592 t
ounce16 oz
stone0.0714286 st
US ton0.0005 US ton

lb to kg conversion chart

pound (lb)kilogram (kg)
1 lb0.453592 kg
2 lb0.907185 kg
3 lb1.36078 kg
4 lb1.81437 kg
5 lb2.26796 kg
6 lb2.72155 kg
7 lb3.17515 kg
8 lb3.62874 kg
9 lb4.08233 kg
10 lb4.53592 kg
12 lb5.44311 kg
15 lb6.80389 kg
20 lb9.07185 kg
25 lb11.3398 kg
50 lb22.6796 kg
100 lb45.3592 kg

How many kilograms are in 1 pound?

1 pound = 0.453592 kilograms. To convert pounds to kilograms, divide by 2.20462. For example, 10 lb = 4.53592 kg and 100 lb = 45.3592 kg. Enter any value above for an exact result.

The Unit Converter changes a value from one unit to another across 11 kinds of measurement: length, weight, temperature, volume, area, speed, time, digital storage, energy, pressure and fuel economy. It covers metric units (centimetres, kilograms, litres), US and UK imperial units (inches, pounds, gallons) and everyday ones such as cups, stones, acres and kilowatt-hours.

Conversions use the official definitions — 1 inch is exactly 2.54 cm, 1 pound exactly 0.45359237 kg, 1 US gallon exactly 3.785411784 litres — and the page shows the factor, the formula, the value in every other unit and a chart of common values, so you can check or reuse the numbers.

When to use it

  • Converting height and weight between metric and imperial (cm ↔ feet and inches, kg ↔ lbs).
  • Cooking with recipes from another country (cups, tablespoons, ml, grams, ounces).
  • Reading weather and oven temperatures in Celsius or Fahrenheit.
  • Property sizes in square feet, square metres, acres and hectares.
  • File sizes (MB ↔ GB), fuel economy (mpg ↔ L/100 km) and tyre pressure (psi ↔ bar).

Tips for better results

  • US and UK gallons and pints differ by about 20% — check which one a recipe or car manual uses.
  • Temperature is not a simple multiplication: use the formula shown (°F = °C × 9/5 + 32).
  • Storage makers use 1 GB = 1,000 MB, while some operating systems show GiB (1,024 MiB) — both are listed.

How to use the Unit Converter

  1. Choose the measurement, such as length or temperature.
  2. Enter the value and pick the units to convert from and to.
  3. Read the result, the value in every other unit and the conversion chart below.

Frequently asked questions

How do I convert pounds to kilograms?

To convert pounds to kilograms, divide by 2.20462. For example, 10 lb = 4.53592 kg.

How do I convert kilograms back to pounds?

Press the swap button between the units. 1 kg = 2.20462 lb.

Is the conversion exact?

Yes. It uses the official definitions of the units; results are only rounded to six significant digits for display.

Are the conversions exact?

Yes. Units are converted with their defined factors — for example 1 inch is exactly 2.54 cm and 1 pound is exactly 0.45359237 kg — and results are rounded to six significant digits only for display.

Are cups and gallons US or UK?

Cups, pints, quarts and gallons are US customary units unless marked UK. UK (imperial) gallons and pints are listed separately because they are about 20% larger.

How many centimetres are in an inch?

Exactly 2.54 cm. To convert inches to centimetres, multiply by 2.54; to convert centimetres to inches, divide by 2.54.

How do I convert kilograms to pounds?

Multiply by 2.20462 (1 kg = 2.20462 lb). To convert pounds to kilograms, multiply by 0.453592.