Is 8 Stone Overweight?
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Medically ReviewedRounded to 2 decimal places. Standard UK/IE ratio (1 st = 6.35029 kg).
Exact Conversion Formula
Calculation Formula
Equivalent to 112 pounds
To convert any other weight from imperial to metric, you can use our primary stone to kg conversion tool for instant results.
8 stone is 112 pounds, or 50.80 kilograms. It sits at the light end of the adult range, and the question behind the question is usually not really about being overweight at all. Most people searching this weight want to know whether they are too thin, and the honest answer is that height decides everything.
Quick Answer
For most adults, 8 stone is a healthy weight from 5ft up to about 5ft 4in. From 5ft 6in upwards it drops into the underweight band. At 5ft 8in the BMI is 17.0, which is firmly underweight rather than borderline.
All conversions and BMI figures on this page are worked out from the exact factors and double-checked for accuracy.
Why Height Flips the Answer Completely
Eight stone is one of those weights where a couple of inches change the verdict entirely. At 5ft 2in it gives a BMI of 20.6, right in the comfortable middle of the healthy range. Stretch the same weight to 5ft 8in and the BMI is 17.0, which is clearly underweight. That six-inch difference moves the answer from "perfectly fine" to "worth looking into", which is why the height-by-height table below matters far more than any single headline number.
When Being Light Needs Attention
There is a difference between naturally being a light-framed person and losing weight without trying. If 8 stone is new for you, or it arrived alongside tiredness, appetite changes or other symptoms, that is a conversation for a GP rather than a chart. BMI is a screening measure: it cannot see the difference between a petite build and unintentional weight loss.
Putting the Number in Context
Want the full conversion with nearby weights? Our 8 stone to kg page covers kilograms, pounds and the worked calculation. For a precise figure at your exact height and weight, try the BMI calculator.
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) | 8 stone | 22.0 | Healthy weight |
| 5ft 2in (157cm) | 8 stone | 20.6 | Healthy weight |
| 5ft 4in (163cm) | 8 stone | 19.1 | Healthy weight |
| 5ft 6in (168cm) | 8 stone | 18.0 | Underweight |
| 5ft 8in (173cm) | 8 stone | 17.0 | Underweight |
| 5ft 10in (178cm) | 8 stone | 16.0 | Underweight |
| 6ft 0in (183cm) | 8 stone | 15.2 | Underweight |
| 6ft 2in (188cm) | 8 stone | 14.4 | Underweight |
Related Conversions
Frequently Asked Questions
Is 8 stone a healthy weight?
It depends on height. At 5ft 4in, 8 stone gives a BMI of 19.1, which is a healthy weight.
From 5ft 6in upwards it falls into the underweight band, with a BMI of 18.0 at 5ft 6in. Check the table below for your exact height.
What is 8 stone in kg?
8 stone is 50.80 kg. The calculation is 8 multiplied by 6.35029, which gives 50.8023 kg, rounded to two decimal places.
What is 8 stone in pounds?
8 stone is exactly 112 pounds. A stone is always 14 pounds, so 8 times 14 gives 112.
What is the BMI for 8 stone at 5ft 2in?
At 5ft 2in, 8 stone gives a BMI of 20.6, which sits comfortably inside the healthy weight range of 18.5 to 24.9.
Is 8 stone underweight for a 5ft 8in man?
Yes. At 5ft 8in, 8 stone gives a BMI of 17.0, which is underweight.
If the weight loss was unintentional, it is worth discussing with a GP.