# Stone to Pounds Converter

URL: https://speedycalculator.com/calculators/conversion/stone-to-lbs/
Last updated: 2026-10-25

> Convert stone (st) to pounds (lb): 1 stone = 14 lb, so multiply by 14 or divide by 0.071428571. Both fields are editable, so you can also type in pounds and get stone back.

## Inputs

- Stone (st)

## Results

- Pounds

## Formula

```
1 st = 14 lb
1 lb = 0.071428571 st
lb = st × 14
```

## Explanation

Multiply stone by 14 to get pounds. 11 st 4 lb is 11 × 14 + 4 = 158 lb.

### How to use the Stone to Pounds Converter

- Type the number of stone into the **Stone** field. Decimals such as 5.5 are fine.
- Read the answer in **Pounds** – it updates as you type, with no button to press.
- To convert the other way, type into **Pounds** and the stone are recalculated.
- Press **Copy results** to copy both values with the page title, or **Copy link** to share this exact conversion.

This page converts only st ⇄ lb. Need a different unit? Use the general weight converter, where you can choose any “from” and “to” unit.

### How it works

Both units measure weight, so they are always in the same ratio: one stone equals 14 pounds. The calculator multiplies the number of stone you type by 14 to give pounds, and when you type into the pounds field it divides by the same factor to give stone. Because the ratio never changes, doubling the stone always doubles the pounds. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).

### How to convert stone to pounds

- Write down the value in stone, for example **11 st**.
- Multiply by the conversion factor 14 (because 1 stone = 14 lb).
- 11 × 14 = **154 lb**.
- To go back from pounds to stone, divide by 14 – or multiply by 0.071428571.

### st to lb conversion table

StonePoundsPoundsStone6 st84 lb1 lb0.071428571 st8 st112 lb2 lb0.14285714 st9 st126 lb5 lb0.35714286 st10 st140 lb10 lb0.71428571 st11 st154 lb20 lb1.4285714 st12 st168 lb50 lb3.5714286 st13 st182 lb100 lb7.1428571 st14 st196 lb1,000 lb71.428571 st15 st210 lb16 st224 lb18 st252 lb20 st280 lb

### What is a stone?

The stone is 14 pounds, about 6.35 kg. People in the UK and Ireland still commonly give their body weight in stones and pounds, such as 11 st 4 lb.

### What is a pound?

The avoirdupois pound is defined as exactly 0.45359237 kg and is divided into 16 ounces. It is the everyday weight unit in the U.S. and is still widely used in the UK for body weight and food.

### Common mistakes to avoid

Confusing fluid ounces (volume) with ounces (weight), using troy ounces for food or regular ounces for gold, and mixing u.s. short tons, uk long tons and metric tonnes.

## Worked example

Inputs — Stone: 11 st.

Results — **Pounds = 154 lb**.

## FAQ

**How many pounds is 12 stone?**
168 lb.

**How many pounds in a stone?**
14.

**How do I convert stone to pounds?**
Multiply the number of stone by 14. For example, 11 st × 14 = 154 lb.

**How do I convert pounds back to stone?**
Divide by 14 (or multiply by 0.071428571), or simply type the value into the pounds field above.

**What is 10 st in pounds?**
10 st = 140 lb.

**What is 20 st in pounds?**
20 st = 280 lb.

**Is this conversion exact?**
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.

**Can I convert to other units on this page?**
This page converts only between stone and pounds. To pick any weight unit, use the general weight converter linked under Related calculators.

**What formula does the Stone to Pounds Converter use?**
1 st = 14 lb.


## Sources

- [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811)
- [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)