Skip to content
RK Calculator
Menu

Pounds to Kilograms Converter

Convert pounds (lb) to kilograms (kg), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter a weight, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
0.45359237 kg
short tons (US tons)
0.0005 ton
long tons (imperial tons)
0.000446428571429 long ton
metric tons (tonnes)
0.00045359237 t
stones
0.0714285714286 st
ounces (avoirdupois)
16 oz
grams
453.59237 g
milligrams
453,592.37 mg
micrograms
453,592,370 µg
carats
2,267.96185 ct
atomic mass units (daltons)
2.73159709693 × 10²⁶ u

1 lb = 0.45359237 kg

Show the working
  1. 1 lb = 0.45359237 kg
  2. 1 × 0.45359237 = 0.45359237 kg

How to convert pounds to kilograms

1 lb = 0.45359237 kg, so multiply by 0.45359237 to go from pounds to kilograms. Going the other way, 1 kg = 2.20462262185 lb.

kg = lb × 0.45359237
lb = kg × 2.20462262185

Worked example:

1 lb = 0.45359237 kg
5 × 0.45359237 = 2.26796185 kg

Pounds to kilograms table

PoundsKilograms
1 lb0.45359237 kg
2 lb0.90718474 kg
3 lb1.36077711 kg
4 lb1.81436948 kg
5 lb2.26796185 kg
6 lb2.72155422 kg
7 lb3.17514659 kg
8 lb3.62873896 kg
9 lb4.08233133 kg
10 lb4.5359237 kg
15 lb6.80388555 kg
20 lb9.0718474 kg
25 lb11.33980925 kg
30 lb13.6077711 kg
40 lb18.1436948 kg
50 lb22.6796185 kg
75 lb34.01942775 kg
100 lb45.359237 kg
110 lb49.8951607 kg
120 lb54.4310844 kg
125 lb56.69904625 kg
130 lb58.9670081 kg
140 lb63.5029318 kg
150 lb68.0388555 kg
160 lb72.5747792 kg
170 lb77.1107029 kg
175 lb79.37866475 kg
180 lb81.6466266 kg
190 lb86.1825503 kg
200 lb90.718474 kg
210 lb95.2543977 kg
220 lb99.7903214 kg
225 lb102.05828325 kg
230 lb104.3262451 kg
240 lb108.8621688 kg
250 lb113.3980925 kg
260 lb117.9340162 kg
270 lb122.4699399 kg
275 lb124.73790175 kg
280 lb127.0058636 kg
290 lb131.5417873 kg
300 lb136.077711 kg
500 lb226.796185 kg
1000 lb453.59237 kg

About the units

Pounds (lb)
Pounds, a US customary unit. Definition: NIST Handbook 44 Appendix C (international foot and avoirdupois pound).
Kilograms (kg)
Kilograms, a metric unit. Definition: BIPM SI Brochure.

Formula version 0.1.0Reviewed