Hundredweight (US) to Stone Converter

Mass Converter

26 units available

Decimals:

From

To

7.142857

1 cwt = 7.142857 st

Formula:

st = cwt × 7.1428571429

With your value: 1 cwt = 7.14285714 st

How big is that?

Everyday references on a logarithmic scale, all expressed in hundredweight (us) so you can sanity-check the result.

Bag of sugar (1/45 your value)0.0220 cwt

House cat (1/10 your value)0.0992 cwt

Your value1.00 cwt

Adult human (1.5× your value)1.54 cwt

Grand piano (8.8× your value)8.82 cwt

Small car (26× your value)26.5 cwt

Other Hundredweight (US) to Stone conversions

2 cwt to st 3 cwt to st 4 cwt to st 5 cwt to st 6 cwt to st 7 cwt to st 8 cwt to st

Hundredweight (US) to Stone Conversion Table

Hundredweight (US) (cwt)	Stone (st)
0.5	3.571429
1	7.142857
2	14.285714
5	35.714286
10	71.428571
15	107.142857
20	142.857143
25	178.571429
50	357.142857
100	714.285714
250	1,785.714286
500	3,571.428571
1000	7,142.857143

Stone to Hundredweight (US) Conversion Table

Stone (st)	Hundredweight (US) (cwt)
0.5	0.07
1	0.14
2	0.28
5	0.7
10	1.4
15	2.1
20	2.8
25	3.5
50	7
100	14
250	35
500	70
1000	140

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 (US) (cwt)

Mass

Exact conversion

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

Exact conversion

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 (US) to Stone

To convert from Hundredweight (US) (cwt) to Stone (st), multiply the value by 7.1428571429.

Formula: st = cwt × 7.1428571429

Reverse: cwt = st × 0.14

Step-by-Step Example

Start with your value in Hundredweight (US). For example: 5 cwt
Multiply by the conversion factor: 5 x 7.1428571429
The result is: 35.714286 st

About Hundredweight (US)

The hundredweight (us) (cwt) is a unit of mass and weight. One hundredweight (us) equals 45.359237 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 (US)?

There are exactly 7.1428571429 Stone in 1 Hundredweight (US). This means the conversion factor from Hundredweight (US) to Stone is 7.1428571429.

What is the formula to convert Hundredweight (US) to Stone?

The formula to convert Hundredweight (US) to Stone is: st = cwt × 7.1428571429. For example, to convert 10 Hundredweight (US) to Stone, you would multiply 10 by 7.1428571429.

What is a Hundredweight (US)?