UK weight-loss calculator
71 kg in stone and pounds
71 kilograms is 11 st 2.5 lb. Below: how that is worked out, and what it means at your height.
Updated
kg = st lb
Displayed values are rounded for readability, but the arithmetic uses the full precision of the internationally defined factors, a pound is exactly 0.45359237 kg and a stone is exactly 14 pounds, so converting back and forth will not drift.
Kilograms to Stone and pounds
11 st 2.5 lb
71 kg converts to the figure on the left, exactly. Nothing in it is an approximation.
Converting 71 kg
71 kilograms is 11 st 2.5 lb. A stone is 14 pounds and a kilogram is about 2.2046 pounds, so 71 kg is 156.5 lb, which is 11 whole stone with 2.5 lb left over.
Most converters stop at a decimal stone, which is not a unit anybody says out loud. 11 st 2.5 lb is the form you would use. In pounds alone it is 156.5 lb.
Between which whole stone
71 kg is 2.5 lb past 11 stone and 11.5 lb short of 12. 11 st exactly is 69.9 kg; 12 st is 76.2 kg. If you weigh yourself in stone, those are the two numbers either side of you.
What 71 kg means at different heights
Whether 71 kg is a lot depends entirely on how tall you are. At 5 ft 0 in it is a BMI of 30.6, which the NHS calls obese (class 1). At 6 ft 2 in the same weight is 20.1, which it calls healthy weight. It is inside the healthy range at 4 of the 8 heights below.
| Height | BMI | NHS category | From healthy range |
|---|---|---|---|
| 5 ft 0 in | 30.6 | Obese (class 1) | 13.1 kg over |
| 5 ft 2 in | 28.6 | Overweight | 9.2 kg over |
| 5 ft 4 in | 26.9 | Overweight | 5.1 kg over |
| 5 ft 6 in | 25.3 | Overweight | 1.0 kg over |
| 5 ft 8 in | 23.8 | Healthy weight | inside it |
| 5 ft 10 in | 22.5 | Healthy weight | inside it |
| 6 ft 0 in | 21.2 | Healthy weight | inside it |
| 6 ft 2 in | 20.1 | Healthy weight | inside it |
The last column is the gap to the nearest edge of the healthy band. At 5 ft 0 in, 71 kg is 13.1 kg over; by 5 ft 8 in it is inside it. A few inches of height moves that figure more than most people expect.
Losing 5 to 20% of 71 kg
Weight-loss advice is usually quoted in percentages, which is hard to picture. From 71 kg, this is what each of those marks comes to.
| Reduction | Weight lost | New weight | In stone and pounds |
|---|---|---|---|
| 5% | 3.6 kg | 67.5 kg | 10 st 8.7 lb |
| 10% | 7.1 kg | 63.9 kg | 10 st 0.9 lb |
| 15% | 10.7 kg | 60.4 kg | 9 st 7 lb |
| 20% | 14.2 kg | 56.8 kg | 8 st 13.2 lb |
The weight loss calculator estimates how long reaching one of those could take at a safe pace, and the weight loss percentage calculator works the other way round, turning weight already lost into a percentage.
BMI is a screening measure, not a diagnosis, and it says nothing on its own about how healthy you are. It does not know how much of you is muscle, and the thresholds are lower for some family backgrounds. What your BMI does and does not say.
The values either side
Scales rarely land on a whole number, and the one you want is often a kilogram either way.
- 69 kg in stone10 st 12.1 lb
- 70 kg in stone11 st 0.3 lb
- 72 kg in stone11 st 4.7 lb
- 73 kg in stone11 st 6.9 lb
For the conversion in the other direction, or for the full chart, see stone to kg and the kg to stone converter. To put this weight to work, the BMI calculator takes your own height rather than the eight above.