20 Stone to KG
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Medically ReviewedRounded to 2 decimal places. Standard UK/IE ratio (1 st = 6.35029 kg).
Exact Conversion Formula
Calculation Formula
To convert any other weight from imperial to metric, you can use our primary stone to kg conversion tool for instant results.
20 stone is 127.01 kilograms, or exactly 280 pounds. Multiply 20 by 6.35029 to get 127.006 kg, rounded to 127.01 kg. BMI depends on height, so the table below provides screening context rather than a diagnosis.
At 20 stone, BMI varies by height. At 5ft 10in, it is about 40.1; at 6ft 0in, it is about 37.9; and at 6ft 2in, it is about 35.9. BMI is a screening measure and does not account for muscle mass or every aspect of health. Use the BMI calculator with your own height for a more relevant estimate.
Is This a Healthy Weight? BMI by Height
| Height | KG | BMI | Adult BMI category |
|---|---|---|---|
| 5ft 0in (152cm) | 127.0 kg | 55.0 | Obese Class 3 |
| 5ft 2in (157cm) | 127.0 kg | 51.5 | Obese Class 3 |
| 5ft 4in (163cm) | 127.0 kg | 47.8 | Obese Class 3 |
| 5ft 6in (168cm) (UK avg) | 127.0 kg | 45.0 | Obese Class 3 |
| 5ft 8in (173cm) | 127.0 kg | 42.4 | Obese Class 3 |
| 5ft 10in (178cm) | 127.0 kg | 40.1 | Obese Class 3 |
| 6ft 0in (183cm) | 127.0 kg | 37.9 | Obese Class 2 |
| 6ft 2in (188cm) | 127.0 kg | 35.9 | Obese Class 2 |
Weights Close to 20 Stone
| Stones and Pounds | Kilograms | Total Pounds |
|---|---|---|
| 19 st 8 lb | 124.28 kg | 274 lbs |
| 19 st 10 lb | 125.19 kg | 276 lbs |
| 19 st 12 lb | 126.10 kg | 278 lbs |
| 20 st 0 lb | 127.01 kg | 280 lbs |
| 20 st 2 lb | 127.91 kg | 282 lbs |
| 20 st 4 lb | 128.82 kg | 284 lbs |
| 20 st 6 lb | 129.73 kg | 286 lbs |
| 20 st 8 lb | 130.63 kg | 288 lbs |
| 20 st 10 lb | 131.54 kg | 290 lbs |
| 20 st 12 lb | 132.45 kg | 292 lbs |
For more weight comparisons, see our full stone to kg chart. Need to go the other way? Try our kg to stone converter. You can also check your BMI using our BMI calculator.
Related Conversions
Frequently Asked Questions
What is 20 stone in kg?
20 stone is 127.01 kg. The calculation is 20 multiplied by 6.35029, giving 127.006 kg, which rounds to 127.01 kg.
Is 20 stone morbidly obese?
BMI depends on height. At 5ft 10in, 20 stone gives a BMI of about 40.1; at 6ft 2in, it gives about 35.9.
BMI is a screening measure, not a diagnosis, and terms such as "morbidly obese" are best discussed with a qualified professional.
What is 20 stone in pounds?
20 stone is exactly 280 pounds. One stone equals 14 pounds, so 20 times 14 equals 280.
Can the NHS help someone who weighs 20 stone?
Support depends on factors such as height, BMI, medical history and local eligibility rules. If your weight is causing concern, a GP can discuss appropriate support and referrals.
How many stone is 127 kg?
127 kg is 20.00 stone, almost exactly. To convert, divide 127 by 6.35029, which gives 19.998 stone, rounding to 20 stone.