Instant lbs to stones converter (UK)
Enter your weight in pounds (lb) to convert it into stones and pounds, decimal stones, and kilograms.
Tip: You can enter whole numbers or decimals.
What this pounds to stones UK calculator does
The UK commonly expresses body weight in stones and pounds rather than pounds alone. If you have a value in pounds (for example from a fitness app, medical chart, or US-based website), this calculator quickly translates it into the format most people in Britain expect.
When you convert pounds to stones, you get:
- Stones and pounds (e.g., 11 st 3 lb)
- Decimal stones (e.g., 11.2143 st)
- Kilograms for metric comparison
How to use the calculator
- Type your value in pounds into the input box.
- Click Convert to Stones.
- Read your converted result instantly below.
You can also press Enter after typing your value to run the conversion.
Pounds to stones formula (UK)
The relationship is simple:
- 1 stone = 14 pounds
- Stones = floor(pounds ÷ 14)
- Remaining pounds = pounds − (stones × 14)
Example calculation
If you weigh 165 lb:
- 165 ÷ 14 = 11 stones (with remainder)
- 11 × 14 = 154
- 165 − 154 = 11
So, 165 lb = 11 st 11 lb.
Quick conversion table
| Pounds (lb) | Stones & Pounds | Decimal Stones | Kilograms (kg) |
|---|---|---|---|
| 100 | 7 st 2 lb | 7.1429 st | 45.36 kg |
| 120 | 8 st 8 lb | 8.5714 st | 54.43 kg |
| 140 | 10 st 0 lb | 10.0000 st | 63.50 kg |
| 160 | 11 st 6 lb | 11.4286 st | 72.57 kg |
| 180 | 12 st 12 lb | 12.8571 st | 81.65 kg |
| 200 | 14 st 4 lb | 14.2857 st | 90.72 kg |
| 220 | 15 st 10 lb | 15.7143 st | 99.79 kg |
Why the UK still uses stones for body weight
Although kilograms are the official metric standard, stones remain deeply familiar in everyday conversation across the UK and Ireland. Doctors, gyms, personal trainers, and families often switch between systems depending on context.
In practical terms:
- Stones + pounds feel intuitive for many UK users.
- Pounds only are common on US websites and devices.
- Kilograms dominate medical and scientific records.
That is why a flexible converter is useful: it helps you move cleanly between all three systems without confusion.
FAQ
How many pounds are in a stone?
There are exactly 14 pounds in 1 stone.
Can I convert decimal pounds?
Yes. This calculator supports decimal entries like 154.5 lb and returns a precise stone-and-pound result.
Is stone used outside the UK?
It is mostly used in the UK and Ireland for body weight. Most other countries use kilograms.
Is this converter accurate?
Yes. It uses the exact conversion relationship (1 st = 14 lb) and a standard kilogram factor (1 lb = 0.45359237 kg).
Final thoughts
If you need a fast and reliable pounds to stones UK calculator, this tool gives you instant results with no clutter. Bookmark this page for everyday health tracking, gym check-ins, travel forms, or quick reference when reading mixed-unit weight data online.