Weight / Mass Converter

Weight / Mass Converter

0.4536
1 lb = 0.4536 kg

Imperial to Metric

ImperialMetric
1 ounce28.35 g
4 ounces (¼ lb)113.4 g
8 ounces (½ lb)226.8 g
1 pound453.6 g / 0.454 kg
1 stone (14 lb)6.35 kg
100 pounds45.36 kg
1 US ton (2000 lb)907.2 kg
1 UK ton (2240 lb)1016 kg

Metric to Imperial

MetricImperial
1 gram0.035 oz
100 grams3.53 oz
250 grams8.82 oz
500 grams1.1 lb
1 kilogram2.205 lb
5 kilograms11.02 lb
50 kilograms110.2 lb / 7.87 st
1 metric ton2205 lb / 1.1 US ton

Body Weight Reference

PoundsKilogramsStones
100 lb45.4 kg7 st 2 lb
120 lb54.4 kg8 st 8 lb
140 lb63.5 kg10 st 0 lb
160 lb72.6 kg11 st 6 lb
180 lb81.6 kg12 st 12 lb
200 lb90.7 kg14 st 4 lb
220 lb99.8 kg15 st 10 lb
250 lb113.4 kg17 st 12 lb

Common Shipping Weights

Letter (standard)< 1 oz / 28 g
Small package1-4 lb / 0.5-2 kg
Medium package5-10 lb / 2-5 kg
Large package11-25 lb / 5-11 kg
Heavy package26-70 lb / 12-32 kg
Freight threshold> 150 lb / 68 kg

Quick Tips

Pounds to Kilograms

Divide pounds by 2.2 for a quick estimate. Example: 150 lb ÷ 2.2 ≈ 68 kg

Kilograms to Pounds

Multiply kilograms by 2.2 for a quick estimate. Example: 70 kg × 2.2 ≈ 154 lb

Stones to Pounds

Multiply stones by 14 to get pounds. Example: 10 st × 14 = 140 lb

Ounces to Grams

Multiply ounces by 28 for a quick estimate. Example: 4 oz × 28 ≈ 112 g