Convert kilograms to stone

Formula: st = kg × 0.157473

kg to st quick reference table

Everyday kg values, converted

• 23 kg = 3.6219 st — the checked-bag allowance most airlines use.
• 20 kg = 3.1495 st — a men's Olympic barbell.
• 70 kg = 11.0231 st — a common adult body-weight reference.
• 5 kg = 0.787365 st — a bag of flour or a small dumbbell.

Where kg to st comes up

Weight conversions show up at the gym, at the airline check-in desk, in recipes written for another country and at the doctor's office. Scales in one country are almost never labelled in the other country's unit, which is why the same figure has to be converted repeatedly.

Doing kg to st in your head

Divide by 6.35 for a close estimate; the calculator above uses the full factor of 0.157473.

Precision and rounding

One kilogram is exactly 0.157473 stone under the current definitions of both units, so the only judgement call is how many digits you keep. Two decimal places is already finer than most household scales and tape measures can read, while engineering and medical work usually keeps the full factor and rounds once at the end rather than at every step.