Pounds to kilograms converter

1 lb = 0.4535924 kg. To convert pounds to kilograms, divide by 2.20462262 (or multiply by ≈ 0.4535924). Example: 10 lb = 4.535924 kg.

Result (kg)

kg = lb ÷ 2.20462262 · Swap: Kilograms to pounds

Open the full tool: Unit converter →

Pounds to kilograms chart

PoundsKilograms
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
30 lb13.6078 kg
40 lb18.1437 kg
50 lb22.6796 kg
60 lb27.2155 kg
75 lb34.0194 kg
100 lb45.3592 kg
200 lb90.7185 kg
500 lb226.796 kg
1000 lb453.592 kg

How to convert pounds to kilograms

Formula: kg = lb ÷ 2.20462262. Worked example: 10 lb = 4.535924 kg. Quick estimate: multiply by about 0.5 — the error is 10%, fine for everyday use but not for engineering or shopping by exact size.

About these units

The international avoirdupois pound is defined as exactly 0.45359237 kg. Pounds are used for body weight in the US and UK, for gym plates and machines, and for US airline baggage allowances (50 lb ≈ 22.7 kg).

Category: weight. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of weight open the full unit converter, or use the reverse page — kilograms to pounds.

FAQ

How many kilograms are in one lb?

1 lb = 0.45359237 kg (rounded). Conversely, 1 kg = 2.204623 lb.

What is 100 lb in kilograms?

100 lb = 45.35924 kg.

Is this converter accurate?

Yes — it uses the official definitions (1 lb = 0.45359237 kg, 1 kg = 1 kg) and shows results rounded to 7 significant digits.

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