Stones To Pounds & Ounces Conversion (st To Lb) - Inch Calculator

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• Stones to Pounds & Ounces Converter
• How to Convert Stones to Pounds
• How Many Pounds Are in a Stone?
• What Is a Stone?
• What Is a Pound?
• Stone to Pound Conversion Table
• References

Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Stones to Pounds & Ounces Converter. Inch Calculator. Retrieved January 21, 2026, from https://www.inchcalculator.com/convert/stone-to-pound/

How to Convert Stones to Pounds

To convert a measurement in stones to a measurement in pounds, multiply the weight by the following conversion ratio: 14 pounds/stone.

Since one stone is equal to 14 pounds, you can use this simple formula to convert:

pounds = stones × 14

The weight in pounds is equal to the weight in stones multiplied by 14.

For example, here's how to convert 5 stones to pounds using the formula above.

pounds = (5 st × 14) = 70 lb

How Many Pounds Are in a Stone?

There are 14 pounds in a stone, which is why we use this value in the formula above.

1 st = 14 lb

Stones and pounds are both units used to measure weight. Keep reading to learn more about each unit of measure.

What Is a Stone?

One stone is equal to 14 pounds and is mostly used in the United Kingdom and Ireland as a unit of mass. It's most commonly used to measure personal body weight.[1]

The stone is an imperial unit of weight. Stones can be abbreviated as st; for example, 1 stone can be written as 1 st.

Learn more about stones.

What Is a Pound?

Pounds are a widely used unit of weight in the United States. The National Bureau of Standards approved the international definition of the pound for use in the United States in 1959 after an agreement between six nations referred to as the International Yard and Pound Agreement.[2]

One pound is equal to 16 ounces, or 0.45359237 kilograms. In the avoirdupois or apothecaries' systems, one pound is equal to 7,000 grains.[3]

The pound is a US customary and imperial unit of weight. A pound is sometimes also referred to as a common ounce. Pounds can be abbreviated as lb (plural lbs), and are also sometimes abbreviated as lbm or #. For example, 1 pound can be written as 1 lb, 1 lbm, or 1 #, and 2 pounds can be written as 2 lbs.

Learn more about pounds.

Stone to Pound Conversion Table

Table showing various stone measurements converted to pounds.

Stones	Pounds
1 st	14 lb
2 st	28 lb
3 st	42 lb
4 st	56 lb
5 st	70 lb
6 st	84 lb
7 st	98 lb
8 st	112 lb
9 st	126 lb
10 st	140 lb
11 st	154 lb
12 st	168 lb
13 st	182 lb
14 st	196 lb
15 st	210 lb
16 st	224 lb
17 st	238 lb
18 st	252 lb
19 st	266 lb
20 st	280 lb
21 st	294 lb
22 st	308 lb
23 st	322 lb
24 st	336 lb
25 st	350 lb
26 st	364 lb
27 st	378 lb
28 st	392 lb
29 st	406 lb
30 st	420 lb
31 st	434 lb
32 st	448 lb
33 st	462 lb
34 st	476 lb
35 st	490 lb
36 st	504 lb
37 st	518 lb
38 st	532 lb
39 st	546 lb
40 st	560 lb

References

1. National Institute of Standards and Technology, Handbook 44 - 2012 - Appendix B, https://www.nist.gov/system/files/documents/2017/04/28/AppB-12-hb44-final.pdf
2. National Bureau of Standards, Refinement of Values for the Yard and Pound, U.S. Department of Commerce, July 1, 1959, https://www.nist.gov/system/files/documents/2017/05/09/frn-59-5442-1959.pdf
3. Encyclopædia Britannica, Avoirdupois weight, https://www.britannica.com/science/avoirdupois-weight

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