5 Stone to KG
Conversion Result
Exact Conversion
5 stone = 31.75 kg
To convert any other weight from imperial to metric, you can use our primary stone to kg conversion tool for instant results.
5 stone is 31.75 kilograms. Multiply 5 by 6.35029 and you get 31.7515, which rounds to 31.75 kg. This is equivalent to 70 pounds. Searches for this conversion tend to come from parents checking a child’s weight in metric, from people monitoring weight during illness or eating disorder recovery, or from those tracking a weight loss goal measured in stones.
For adults, 5 stone is significantly underweight at every height. To put it in context, at 5ft 0in, a BMI of 18.5 corresponds to a weight of around 47 kg, which is almost 16 kg above 5 stone. For children, 5 stone is a typical weight for a child aged around 6 to 8 years, again depending on height and build. The NHS growth charts for children are the correct reference point here, not adult BMI calculations. For anyone in an adult body at 5 stone, medical attention is strongly recommended.
Dr Muhammad Usman, MBBS
5 stone is a weight I would treat as a medical concern in any adult patient. It falls into the category of severe underweight, which carries serious risks including bone density loss, cardiac complications, hormonal disruption, and immune suppression. I want to be careful here because some people searching for this conversion may be struggling with an eating disorder. If that applies to you, please reach out to your GP or contact Beat, the UK eating disorder charity. Recovery is possible and support is available.
Is This a Healthy Weight? BMI by Height
| Height | KG | BMI | NHS Category |
|---|---|---|---|
| 5ft 0in (152cm) | 31.8 kg | 13.7 | Underweight |
| 5ft 2in (157cm) | 31.8 kg | 12.9 | Underweight |
| 5ft 4in (163cm) | 31.8 kg | 12.0 | Underweight |
| 5ft 6in (168cm) (UK avg) | 31.8 kg | 11.2 | Underweight |
| 5ft 8in (173cm) | 31.8 kg | 10.6 | Underweight |
| 5ft 10in (178cm) | 31.8 kg | 10.0 | Underweight |
| 6ft 0in (183cm) | 31.8 kg | 9.5 | Underweight |
| 6ft 2in (188cm) | 31.8 kg | 9.0 | Underweight |
Weights Close to 5 Stone
| Stones and Pounds | Kilograms | Total Pounds |
|---|---|---|
| 4 st 8 lb | 29.03 kg | 64 lbs |
| 4 st 10 lb | 29.94 kg | 66 lbs |
| 4 st 12 lb | 30.84 kg | 68 lbs |
| 5 st 0 lb | 31.75 kg | 70 lbs |
| 5 st 2 lb | 32.66 kg | 72 lbs |
| 5 st 4 lb | 33.57 kg | 74 lbs |
| 5 st 6 lb | 34.47 kg | 76 lbs |
| 5 st 8 lb | 35.38 kg | 78 lbs |
| 5 st 10 lb | 36.29 kg | 80 lbs |
| 5 st 12 lb | 37.19 kg | 82 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 NHS/WHO-aligned BMI calculator.
Related Conversions
Frequently Asked Questions
What is 5 stone in kg?
5 stone is 31.75 kg. The full calculation is 5 multiplied by 6.35029, giving 31.7515 kg, rounded to 31.75 kg.
What is 5 stone in pounds?
5 stone equals exactly 70 pounds. There are 14 pounds in one stone, so 5 times 14 equals 70.
Is 5 stone underweight for an adult?
Yes, significantly so. At every adult height, 5 stone gives a BMI far below the 18.5 underweight threshold. This is a weight that warrants urgent medical attention in any adult.
What age does a child typically weigh 5 stone?
A child of around 6 to 8 years old may typically weigh around 5 stone, though this varies by height and individual build. Always check against the NHS child growth charts for the correct healthy weight range at a specific age.
How much is 5 stone 7 pounds in kg?
5 stone 7 pounds is 34.93 kg. Convert by multiplying total pounds by 0.453592: 5 times 14 plus 7 equals 77 pounds, then 77 multiplied by 0.453592 equals 34.93 kg.