Pounds to Kilograms

Convert lb to kg instantly — with a table, common amounts, and a live calculator.

1 lb equals 0.454 kg.

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Result (kg)0.454 kg

lb to kg table

lbkg
0.25 lb0.113 kg
0.5 lb0.227 kg
0.75 lb0.34 kg
1 lb0.454 kg
1.5 lb0.68 kg
2 lb0.907 kg
2.5 lb1.13 kg
3 lb1.36 kg
4 lb1.81 kg
5 lb2.27 kg
6 lb2.72 kg
7 lb3.18 kg
7.5 lb3.4 kg
8 lb3.63 kg
10 lb4.54 kg
12 lb5.44 kg
15 lb6.8 kg
20 lb9.07 kg
25 lb11.34 kg
50 lb22.68 kg
75 lb34.02 kg
100 lb45.36 kg

kg to lb (reverse)

kglb
0.25 kg0.551 lb
0.5 kg1.1 lb
0.75 kg1.65 lb
1 kg2.2 lb
1.5 kg3.31 lb
2 kg4.41 lb
2.5 kg5.51 lb
3 kg6.61 lb
4 kg8.82 lb
5 kg11.02 lb
6 kg13.23 lb
7 kg15.43 lb
7.5 kg16.53 lb
8 kg17.64 lb
10 kg22.05 lb
12 kg26.46 lb
15 kg33.07 lb
20 kg44.09 lb
25 kg55.12 lb
50 kg110.23 lb
75 kg165.35 lb
100 kg220.46 lb

Common amounts

lbkg
1/8 lb0.0567 kg
1/4 lb0.113 kg
1/3 lb0.151 kg
1/2 lb0.227 kg
2/3 lb0.302 kg
3/4 lb0.34 kg
1 lb0.454 kg
1 1/4 lb0.567 kg
1 1/2 lb0.68 kg
1 3/4 lb0.794 kg
2 lb0.907 kg
2 1/2 lb1.13 kg

How it scales

0.50.91.41.801234lb

1 kilogram in other units

1000g35.3oz2.2lb0.2st

The ratio at a glance

1 lb0.45 kg

Imperial and metric weight units

Ounces, pounds, and stone belong to the imperial/US system, while milligrams, grams, kilograms, and metric tons are metric. The international avoirdupois pound is defined as exactly 453.59237 grams.

Mass-to-mass conversions are exact and rest on fixed factors — for more unit pairs, use our weight conversion hub.

Frequently asked questions

How many kg are in a lb?

1 lb equals 0.454 kg.

How many kg are in 2 lb?

2 lb equal 0.907 kg.

How do I convert lb to kg?

Divide the number of lb by 2.2 to get kg.

How is a pound defined?

These conversions use the international avoirdupois pound, defined as exactly 453.59237 grams. A pound is made up of 16 ounces.

Why are there imperial and metric weight units?

Ounces, pounds, and stone belong to the imperial/US system, while milligrams, grams, kilograms, and metric tons are metric. All conversions rest on fixed, exact factors.

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