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The weight in stone.
Written British weights are often given as stone and pounds together — 12 st 6 lb. Enter the stone part here and add the loose pounds to the answer, or enter the decimal equivalent: 6 lb is 6/14, about 0.43 st.
Weight
168 lb
1 stone = 14 pounds exactly, fixed by statute. Exact by definition. A duty rating is usually a total load, not a body weight — check what it includes.
- Same weight in kilograms
- 76.2 kg
They open the calculator with your figures already in it
Stone to Pounds Calculator: 168 lb — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
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How this was calculated
Formula source(s)
- 1 stone = 14 avoirdupois pounds (exact), UK statutory definition
- International yard and pound agreement (1959): 1 lb = 0.45359237 kg exactly
Inputs used
- Weight (st)
- 12
Intermediate steps
- Same weight in kilograms
- 76.2 kg
Confidence note: 1 stone = 14 pounds exactly, fixed by statute. Exact by definition. A duty rating is usually a total load, not a body weight — check what it includes.
Estimated cost — your price
This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.
Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-09-11 · v1.0.0
Regulatory standards & verification citations2
- 1 stone = 14 avoirdupois pounds (exact), UK statutory definition
- International yard and pound agreement (1959): 1 lb = 0.45359237 kg exactly
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Your workspace
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The stone is the one imperial unit that metrication never quite dislodged from British usage, and it turns up in the trades in a specific place: the duty rating on equipment that carries a person. Older staging, platforms and ladders were marked in stone, modern ones are marked in kilograms, and comparing the two means passing through pounds. That is worth doing precisely rather than approximately, because the comparison is usually being made to decide whether something is safe to stand on. Fourteen pounds to the stone is exact; what is not exact, and matters more, is whether the rating you are converting counts the person alone or the person with everything they are carrying.