Convert height from cm to feet and inches and back, and weight from kg to pounds or stones and pounds, using the exact 2.54 cm inch.
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180 cm is 5 ft 11 in (70.87 in), and 75 kg is 165.3 lb, or 11 st 11 lb.
1 in = 2.54 cm exactly (1959 international yard and pound agreement).
Rounded to the nearest inch, then 12 in = 1 ft.
1 lb = 0.45359237 kg exactly.
Rounded to the nearest pound, then 14 lb = 1 st.
A height in centimetres becomes feet and inches by dividing by 2.54 cm per inch, rounding to the nearest inch and splitting into feet of 12 inches. A body weight in kilograms becomes pounds by dividing by 0.45359237 kg per pound, and stones and pounds by rounding to the nearest pound and splitting into stones of 14 pounds.
The default, 180 cm and 75 kg, gives 5 ft 11 in (70.87 in) and 165.3 lb, or 11 st 11 lb. Typing 5 ft 11 in or 11 st 4 lb straight into the fields works the other way.
Both factors are exact by the 1959 international yard and pound agreement, so the only approximation is the rounding to whole inches and pounds, which carries upward: 71.85 in shows as 6 ft 0 in, not 5 ft 12 in.
Divide centimeters by 2.54 to get inches, then split the inches into feet of 12. The inch is exactly 2.54 cm and the foot exactly 12 inches (NIST Handbook 44, Appendix C). For 175 cm: 175 ÷ 2.54 = 68.90 in, which is 5 ft 8.90 in, or 5 ft 9 in to the nearest inch. To go the other way, turn feet and inches into total inches and multiply by 2.54.
Multiply the feet by 12, add the inches, then multiply the total by 2.54:
The inch is exactly 2.54 cm, so these results are exact for the stated heights.
Feet and inches are rounded to the nearest whole inch and stones and pounds to the nearest pound. The inch column is rounded to two decimals and the pound column to one.
| Height, cm | Feet and inches | Inches | Weight, kg | Pounds | Stone and pounds |
|---|---|---|---|---|---|
| 150 | 4 ft 11 in | 59.06 | 50 | 110.2 | 7 st 12 lb |
| 152.4 | 5 ft 0 in | 60 | 60 | 132.3 | 9 st 6 lb |
| 160 | 5 ft 3 in | 62.99 | 65 | 143.3 | 10 st 3 lb |
| 170 | 5 ft 7 in | 66.93 | 70 | 154.3 | 11 st 0 lb |
| 175 | 5 ft 9 in | 68.9 | 72 | 158.7 | 11 st 5 lb |
| 180 | 5 ft 11 in | 70.87 | 75 | 165.3 | 11 st 11 lb |
| 182.88 | 6 ft 0 in | 72 | 80 | 176.4 | 12 st 8 lb |
| 190 | 6 ft 3 in | 74.8 | 90 | 198.4 | 14 st 2 lb |
| 200 | 6 ft 7 in | 78.74 | 100 | 220.5 | 15 st 10 lb |
Two heights land exactly on a whole foot: 152.4 cm is 60 inches, or five feet, and 182.88 cm is 72 inches, or six feet.
Divide kilograms by 0.45359237 to get pounds, then split the pounds into stones of 14. For 70 kg: 154.32 lb, which rounds to 154 lb, exactly 11 st 0 lb.
For stones and pounds to kilograms, find the total pounds first: 12 st 6 lb is 12 × 14 + 6 = 174 lb, and 174 × 0.45359237 = 78.92507238 kg.
Decimal stone is a different notation. 11.4 st means 11.4 × 14 = 159.6 lb, about 11 st 6 lb, while 11 st 4 lb is 158 lb.
Total inches are rounded before they are split, so a result never shows 12 inches. 181.61 cm is exactly 71.5 inches, which rounds up to 72 and shows as 6 ft 0 in. Every height from 181.61 cm up to, but not including, 184.15 cm shows as 6 ft 0 in.
Weight carries the same way. 13 st 13.6 lb totals 195.6 lb, rounds to 196 lb and shows as 14 st 0 lb.
5 ft 11 in or 5'11".11 st 4 lb.For a single length or weight, use the length converter or the weight converter. To relate height and weight to a health index, the BMI calculator has its own formula and limits.
Checked against: 180 / 2.54 ≈ 70.866 in → 71 in = 5 ft 11 in; 75 / 0.45359237 ≈ 165.347 lb ≈ 11 st 11.35 lb
Checked against: 71 × 2.54 = 180.34 cm; 158 lb × 0.45359237 = 71.66759446 kg (NIST HB 44)
Checked against: 182.5 / 2.54 ≈ 71.85 in → 72 in = 6 ft 0 in; 13 st 13.6 lb = 195.6 lb → 196 lb = 14 st 0 lb
Checked against: 152.4 / 2.54 = 60 in exactly
5 ft 11 in. 180 cm ÷ 2.54 = 70.87 in, which rounds to 71 in, and 71 in is 5 × 12 + 11. Six feet (72 in) is exactly 182.88 cm. With rounding to the nearest whole inch, heights from 181.61 cm up to, but not including, 184.15 cm show as 6 ft 0 in; 184.15 cm rounds to 6 ft 1 in.
Turn the height into inches, then multiply by 2.54. 5 ft 11 in is 5 × 12 + 11 = 71 in, and 71 × 2.54 = 180.34 cm. The factor is exact: the 1959 international yard and pound agreement fixed the inch at 2.54 cm, so any error comes only from how many decimals you keep.
14 pounds, so one stone is exactly 6.35029318 kg (14 × 0.45359237 kg). A weight of 11 st 4 lb is 158 lb, or 71.67 kg. The stone remains in customary use for body weight in the United Kingdom and Ireland, and for weigh-ins in boxing and horse racing there.
11 st 11 lb. 75 kg ÷ 0.45359237 kg/lb ≈ 165.35 lb, which rounds to 165 lb; 165 = 11 × 14 + 11, so the weight is 11 stone 11 pounds. In pounds alone it is 165.3 lb, and 12 stone (168 lb) would be 76.2 kg.
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