Pound to Stone Converter
Convert Pound (lb) to Stone (st) instantly. 1 lb = 0.071429 st.
Mass Converter
26 units available
1 lb = 0.071429 st
Formula:
st = lb × 0.0714285714With your value: 1 lb = 0.07142857 st
How big is that?
Everyday references on a logarithmic scale, all expressed in pound so you can sanity-check the result.
Other Pound to Stone conversions
Pound to Stone Conversion Table
| Pound (lb) | Stone (st) |
|---|---|
| 0.5 | 0.035714 |
| 1 | 0.071429 |
| 2 | 0.142857 |
| 5 | 0.357143 |
| 10 | 0.714286 |
| 15 | 1.071429 |
| 20 | 1.428571 |
| 25 | 1.785714 |
| 50 | 3.571429 |
| 100 | 7.142857 |
| 250 | 17.857143 |
| 500 | 35.714286 |
| 1000 | 71.428571 |
Stone to Pound Conversion Table
| Stone (st) | Pound (lb) |
|---|---|
| 0.5 | 7 |
| 1 | 14 |
| 2 | 28 |
| 5 | 70 |
| 10 | 140 |
| 15 | 210 |
| 20 | 280 |
| 25 | 350 |
| 50 | 700 |
| 100 | 1,400 |
| 250 | 3,500 |
| 500 | 7,000 |
| 1000 | 14,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Pound (lb)
Mass
1 avoirdupois pound = 0.453 592 37 kg exactly (1959 international agreement).
Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442
US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01
Stone (st)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Pound to Stone
To convert from Pound (lb) to Stone (st), multiply the value by 0.0714285714.
Formula: st = lb × 0.0714285714
Reverse: lb = st × 14
Step-by-Step Example
- Start with your value in Pound. For example: 5 lb
- Multiply by the conversion factor: 5 x 0.0714285714
- The result is: 0.357143 st
About Pound
The pound (lb) is an imperial unit of mass equal to exactly 0.45359237 kilograms. It is the primary unit of weight in the United States.
Fun Fact: The abbreviation "lb" comes from the Latin "libra pondo" meaning "a pound by weight."
Common uses: body weight (US), food packaging, shipping.
About Stone
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
Fun Fact: The stone varied in weight depending on the commodity being weighed until it was standardized at 14 pounds in 1835.
Common uses: body weight (UK), agriculture.
Frequently Asked Questions
How many Stone are in 1 Pound?
There are exactly 0.0714285714 Stone in 1 Pound. This means the conversion factor from Pound to Stone is 0.0714285714.
What is the formula to convert Pound to Stone?
The formula to convert Pound to Stone is: st = lb × 0.0714285714. For example, to convert 10 Pound to Stone, you would multiply 10 by 0.0714285714.
What is a Pound?
The pound (lb) is an imperial unit of mass equal to exactly 0.45359237 kilograms. It is the primary unit of weight in the United States.
What is a Stone?
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
What are the common uses of Pound?
The Pound is commonly used in body weight (US), food packaging, shipping.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Pound to Stone converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/pound-to-stone