Weight converter

What the result means

These conversions are mass in everyday language — what a scale reads — not force. A 70 kg person is about 11 stone, or 154 pounds.

How it is calculated

to = from × (factorFrom ÷ factorTo), using grams as the common base

• Value: The amount in the starting unit.
• From / To: Units from the same measurement family.

Every unit is a multiple of a gram. Convert into grams, then into the unit you want.

Worked example

70 kg in stone and pounds

A clinic records weight in kilograms. A patient is used to stone.

Pounds

70 ÷ 0.45359237 ≈ 154.32 lb

Stone

154.32 ÷ 14 ≈ 11.02 st

70 kg is just over 11 stone. Bathroom scales that switch units should match this, aside from display rounding.

Kilograms, not pounds, on Australian labels

Food, luggage and people are weighed in grams and kilograms here. Pounds and stone still appear in imported fitness content, older recipes and some medical records written for patients who grew up with stone. Convert once and write the kilogram figure down — bathroom scales that flip units will otherwise disagree with the clinic.

A pound is defined as exactly 0.45359237 kg. Stone is 14 pounds. A metric tonne is 1,000 kg, not a US short ton of 2,000 lb (about 907 kg) and not a UK long ton of 2,240 lb.

Airline baggage allowances are almost always in kilograms on Australian itineraries, even when the booking was made on a US site that flashed pounds. 23 kg is 50.7 lb, which is why a “50 lb” suitcase can be overweight at check-in.

Questions