Kg to Stones and Pounds

How to convert kilograms to stones and pounds

A pound is exactly 0.45359237 kilograms and a stone is 14 pounds, so:

1. Kilograms to pounds: 70 ÷ 0.45359237 = 154.32 lb.
2. Pounds to stones: 154.32 ÷ 14 = 11 stones, with 0.32 lb left over.
3. Round the pounds: 11 st 0.3 lb.

Going the other way, multiply the stones by 14, add the pounds and multiply by 0.45359237: 11 st 4 lb is 158 lb, which is 71.67 kg. The calculator does both directions and also gives decimal stones (11.02 st), which some scales and apps display, and pounds and ounces.

Kg to stones chart

The result also shows a short chart of the nearby whole kilograms, so you can see a target weight or a few kilograms either side at a glance.

Weight change in stones

A stone is 6.35 kg, so losing a stone means losing 6.35 kg, and half a stone is 3.18 kg. Pounds are smaller steps: one pound is 0.45 kg, so 2.2 lb is about a kilogram. To track a change, convert the start and current weights and subtract — or enter the difference itself: 9 lb lost is 4.08 kg, and 5 kg lost is 11 lb, or 0 st 11 lb.

Babies, parcels and pounds and ounces

Birth weights in the U.S. and UK are often given in pounds and ounces, while hospitals record grams. Choose Pounds & oz: 7 lb 8 oz is 3.40 kg, and 3.2 kg is 7 lb 0.9 oz. Parcels and luggage limits work the same way. For ounces and grams on their own, see ounces to grams; for pounds and kilograms without stones, kg to lbs and lbs to kg.

Where stones are used

Stones survive mainly for body weight in the United Kingdom and Ireland — on bathroom scales, in doctors’ surgeries and in sports such as boxing and horse racing commentary. Food, parcels and everything else are sold in kilograms there. In the United States, body weight is given in pounds only, so a U.S. reader converting a British weight usually wants pounds: 11 st 4 lb is 158 lb. For pounds to decimal stones, use lbs to stone.