42 KG to Stone
Convert 42 kilograms to stone and pounds instantly.
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Medically ReviewedRounded to 2 decimal places. Standard UK/IE ratio (1 st = 6.35029 kg).
42 kg is 6 stone 9 pounds. Divide 42 by 6.35029 to get 6.61 stone, which is 6 stone with 9 pounds left over. In pounds, 42 kg is 92.6 lbs. The BMI screening result depends on height, and the same weight can mean something different for different people. For children, weight needs to be assessed using age- and sex-specific growth charts rather than an adult BMI label. For the reverse calculation, visit our stone to kg converter or the main kg to stone hub.
In the adult BMI framework, 42 kg gives a BMI of about 18.2 at 5ft 0in (152cm), and the value falls as height increases. I see 42 kg come up for teenagers and smaller adults more than for anyone else, and the honest answer is always the same: the kilograms are only half the story without the height. BMI is a screening measure rather than a diagnosis. For children and teenagers, age, sex, height and repeated measurements are interpreted with growth charts.
42 kg in everyday use: gym kit, luggage and parcels
Forty-two kilograms is a weight I recognise from the gym floor: a 20 kg barbell with two 10 kg plates plus the collars lands within a fraction of it, although equipment weights vary. For luggage, check the carrier's allowance before you fly: a 42 kg bag is well above the usual checked limit, but allowances depend on the airline, the fare and how the bags are split. As a body weight, it is most often a teenager or a smaller adult, and that is exactly the situation where a single conversion is not enough context on its own.
Weights Close to 42 KG
| Kilograms | Pounds | Stone and Pounds | Decimal Stone |
|---|---|---|---|
| 35 kg | 77.2 lbs | 5 st 7 lb | 5.51 st |
| 38 kg | 83.8 lbs | 6 st 0 lb | 5.98 st |
| 40 kg | 88.2 lbs | 6 st 4 lb | 6.30 st |
| 42 kg (this page) | 92.6 lbs | 6 st 9 lb | 6.61 st |
| 45 kg | 99.2 lbs | 7 st 1 lb | 7.09 st |
| 46 kg | 101.4 lbs | 7 st 3 lb | 7.24 st |
| 48 kg | 105.8 lbs | 7 st 8 lb | 7.56 st |
| 50 kg | 110.2 lbs | 7 st 12 lb | 7.87 st |
Frequently Asked Questions
How many stone is 42 kg?
42 kg is 6 stone 9 pounds. Divide 42 by 6.35029 to get 6.614 stone, which I round to 6.61.
What is 42 kg in pounds?
42 kg is 92.6 lbs. Multiply 42 by 2.20462 to get 92.594 lbs, which rounds to 92.6.
What is 42 kg in stone and pounds?
42 kg is 6 stone 9 pounds. In decimal stone, that is 6.61 stone.
Is 42 kg a healthy weight for an adult?
At 42 kg, BMI depends on height. At 5ft 0in the BMI is about 18.2, close to the 18.5 boundary often used in adult BMI screening. Taller adults will have a lower BMI at the same weight. BMI is a screening measure rather than a diagnosis, so speak to a GP about personal concerns rather than reading a verdict from the number alone.
How do I convert 42 kg to stone?
Work it from pounds to keep the maths honest. 42 kg is 92.594 lbs. Six stone is 84 lbs, and 92.594 minus 84 leaves 8.594 lbs, which rounds to 9 pounds. Result: 6 stone 9 pounds.
Dr Muhammad Usman
Dr Muhammad Usman graduated with his MBBS from Avicenna International Medical University in Bishkek, Kyrgyzstan (2019–2024).
He brings clinical training across general medicine, surgery, and public health, and writes the site's health information for UK readers in clear, practical language.