Convert Hundredweight (US) to Stone (US)
Convert hundredweights (us) to stones (us) instantly. 1 hundredweight (us) = 8 stone (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (US) to Hundredweight (US) converter for the reverse conversion.
Units explained
Hundredweight (US)
The US (short) hundredweight equals 100 pounds, about 45.36 kilograms.
The American 'hundred'-pound commercial weight (also called the cental).
US commodity trade in grain, livestock feed, and produce.
Standardized at 100 pounds in US customary units.
Stone (US)
A less common US definition of the stone, about 5.67 kilograms.
A variant stone weight used in some historical US trade.
Rare; appears mainly in historical or specialized contexts.
Derived from older English stone weights that varied by commodity.
Hundredweight (US) to Stone (US) conversion formula
The relationship between hundredweights (us) and stones (us):
To convert hundredweights (us) to stones (us), multiply the value in hundredweights (us) by 8. To reverse, multiply stones (us) by 0.125.
How to use this converter
Type a value into the calculator. The result in stones (us) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Stone (US) to Hundredweight (US) converter for the reverse direction.
Step-by-step: convert hundredweights (us) to stones (us)
- Write down the value in hundredweights (us) (cwt).
- Multiply that value by the factor 8.
- The product is the equivalent value in stones (us) (st).
- To reverse, multiply the stone (us) value by 0.125.
Worked examples
Example 1 — Convert 1 cwt to st:
1 × 8 = 8 st
Example 2 — Convert 100 cwt to st:
100 × 8 = 800 st
Hundredweight (US) to Stone (US) conversion table
Standard reference values for converting hundredweights (us) to stones (us):
| Hundredweight (US) [cwt] | Stone (US) [st] |
|---|---|
| 0.01 | 0.08 |
| 0.1 | 0.8 |
| 1 | 8 |
| 2 | 16 |
| 3 | 24 |
| 4 | 32 |
| 5 | 40 |
| 10 | 80 |
| 20 | 160 |
| 30 | 240 |
| 40 | 320 |
| 50 | 400 |
| 100 | 800 |
| 500 | 4000 |
| 1000 | 8000 |
Frequently asked questions
How many stones (us) is 1 hundredweight (us)?
How do I convert hundredweights (us) to stones (us)?
How do I convert stones (us) back to hundredweights (us)?
How many stones (us) is 100 hundredweights (us)?
Popular weight unit conversions
Convert Hundredweight (US) to other weight units
Show all Hundredweight (US) conversions
Metric / SI (18 units)
Avoirdupois (14 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 cwt = 8 st) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.