Hundredweight (UK) to Stone Converter
Convert Hundredweight (UK) (cwt) to Stone (st) instantly. 1 cwt = 8 st.
Mass Converter
26 units available
1 cwt = 8 st
Formula:
st = cwt × 8With your value: 1 cwt = 8 st
How big is that?
Everyday references on a logarithmic scale, all expressed in hundredweight (uk) so you can sanity-check the result.
Other Hundredweight (UK) to Stone conversions
Hundredweight (UK) to Stone Conversion Table
| Hundredweight (UK) (cwt) | Stone (st) |
|---|---|
| 0.5 | 4 |
| 1 | 8 |
| 2 | 16 |
| 5 | 40 |
| 10 | 80 |
| 15 | 120 |
| 20 | 160 |
| 25 | 200 |
| 50 | 400 |
| 100 | 800 |
| 250 | 2,000 |
| 500 | 4,000 |
| 1000 | 8,000 |
Stone to Hundredweight (UK) Conversion Table
| Stone (st) | Hundredweight (UK) (cwt) |
|---|---|
| 0.5 | 0.0625 |
| 1 | 0.125 |
| 2 | 0.25 |
| 5 | 0.625 |
| 10 | 1.25 |
| 15 | 1.875 |
| 20 | 2.5 |
| 25 | 3.125 |
| 50 | 6.25 |
| 100 | 12.5 |
| 250 | 31.25 |
| 500 | 62.5 |
| 1000 | 125 |
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.
Hundredweight (UK) (cwt)
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
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 Hundredweight (UK) to Stone
To convert from Hundredweight (UK) (cwt) to Stone (st), multiply the value by 8.
Formula: st = cwt × 8
Reverse: cwt = st × 0.125
Step-by-Step Example
- Start with your value in Hundredweight (UK). For example: 5 cwt
- Multiply by the conversion factor: 5 x 8
- The result is: 40 st
About Hundredweight (UK)
The hundredweight (uk) (cwt) is a unit of mass and weight. One hundredweight (uk) equals 50.80234544 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: mass calculations, engineering and science, education.
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 Hundredweight (UK)?
There are exactly 8 Stone in 1 Hundredweight (UK). This means the conversion factor from Hundredweight (UK) to Stone is 8.
What is the formula to convert Hundredweight (UK) to Stone?
The formula to convert Hundredweight (UK) to Stone is: st = cwt × 8. For example, to convert 10 Hundredweight (UK) to Stone, you would multiply 10 by 8.
What is a Hundredweight (UK)?
The hundredweight (uk) (cwt) is a unit of mass and weight. One hundredweight (uk) equals 50.80234544 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
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 Hundredweight (UK)?
The Hundredweight (UK) is commonly used in mass calculations, engineering and science, education.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Hundredweight (UK) to Stone converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/hundredweight_uk-to-stone