Is 9 Stone Overweight?
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Medically ReviewedRounded to 2 decimal places. Standard UK/IE ratio (1 st = 6.35029 kg).
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Equivalent to 126 pounds
To convert any other weight from imperial to metric, you can use our primary stone to kg conversion tool for instant results.
9 stone is 126 pounds, or 57.15 kilograms. It is one of those weights that almost never signals a problem. People searching it are usually looking for reassurance rather than a warning, and for most shorter adults the reassurance is deserved: 9 stone sits comfortably inside the healthy range across a wide band of heights.
Quick Answer
For most adults, 9 stone is a healthy weight from 5ft all the way to 5ft 8in. It only slips into the underweight band from 5ft 10in upwards, where the BMI reads 18.0. Nobody at any common height is overweight at 9 stone.
All conversions and BMI figures on this page are worked out from the exact factors and double-checked for accuracy.
The Sweet Spot for Smaller Frames
What I like about 9 stone is how forgiving it is. Between 5ft and 5ft 8in the BMI glides from 24.7 down to 19.1 without ever leaving the healthy band, so a couple of inches either way barely changes the story. That is unusual: most weights have a tipping point somewhere in the middle of the height range, but 9 stone stays put. It is only when you reach 5ft 10in and beyond that the chart starts flagging it as light.
A Note on the Lower Boundary
The underweight line at taller heights is worth taking seriously rather than brushing past. A BMI of 18.0 at 5ft 10in is only just under the threshold, and plenty of naturally slim people live there without issue. But if 9 stone represents weight you have lost rather than weight you have always been, that context matters more than the number. A GP can tell the difference in a five-minute conversation.
Putting the Number in Context
For the full conversion including nearby weights, see our 9 stone to kg page. To check your precise figure, the BMI calculator works with your exact height and weight.
This is general information, not medical advice. Speak to your GP for personal guidance.
Is This a Healthy Weight? (BMI Table)
| Height | Weight | BMI | Category |
|---|---|---|---|
| 5ft 0in (152cm) | 9 stone | 24.7 | Healthy weight |
| 5ft 2in (157cm) | 9 stone | 23.2 | Healthy weight |
| 5ft 4in (163cm) | 9 stone | 21.5 | Healthy weight |
| 5ft 6in (168cm) | 9 stone | 20.2 | Healthy weight |
| 5ft 8in (173cm) | 9 stone | 19.1 | Healthy weight |
| 5ft 10in (178cm) | 9 stone | 18.0 | Underweight |
| 6ft 0in (183cm) | 9 stone | 17.1 | Underweight |
| 6ft 2in (188cm) | 9 stone | 16.2 | Underweight |
Related Conversions
Frequently Asked Questions
Is 9 stone a healthy weight?
For most shorter adults, yes. At 5ft 6in, 9 stone gives a BMI of 20.2, comfortably healthy.
It stays in the healthy band from 5ft right up to 5ft 8in, and only drops into underweight from 5ft 10in upwards.
What is 9 stone in kg?
9 stone is 57.15 kg. The calculation is 9 multiplied by 6.35029, which gives 57.1526 kg, rounded to two decimal places.
What is 9 stone in pounds?
9 stone is exactly 126 pounds. A stone is always 14 pounds, so 9 times 14 gives 126.
What is the BMI for 9 stone at 5ft 4in?
At 5ft 4in, 9 stone gives a BMI of 21.5, which sits nicely inside the healthy weight range of 18.5 to 24.9.
Is 9 stone too light for a 6ft man?
Yes. At 6ft, 9 stone gives a BMI of 17.1, which is underweight.
If this is a recent change rather than a long-standing build, speak to a GP.