Stone to Pennyweight Converter

Mass Converter

26 units available

Decimals:

From

To

4,083.333333

1 st = 4,083.333333 dwt

Formula:

dwt = st × 4,083.3333333333

With your value: 1 st = 4,083.33333333 dwt

How big is that?

Everyday references on a logarithmic scale, all expressed in stone so you can sanity-check the result.

Can of soda (1/16 your value)0.0614 st

Bag of sugar (1/6.4 your value)0.157 st

House cat (1/1.4 your value)0.709 st

Your value1.00 st

Adult human (11× your value)11.0 st

Grand piano (63× your value)63.0 st

Other Stone to Pennyweight conversions

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

Stone to Pennyweight Conversion Table

Stone (st)	Pennyweight (dwt)
0.5	2,041.666667
1	4,083.333333
2	8,166.666667
5	20,416.666667
10	40,833.333333
15	61,250
20	81,666.666667
25	102,083.333333
50	204,166.666667
100	408,333.333333
250	1,020,833.333333
500	2,041,666.666667
1000	4,083,333.333333

Pennyweight to Stone Conversion Table

Pennyweight (dwt)	Stone (st)
0.5	0.000122
1	0.000245
2	0.00049
5	0.001224
10	0.002449
15	0.003673
20	0.004898
25	0.006122
50	0.012245
100	0.02449
250	0.061224
500	0.122449
1000	0.244898

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.

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

Pennyweight (dwt)

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 Stone to Pennyweight

To convert from Stone (st) to Pennyweight (dwt), multiply the value by 4,083.3333333333.

Formula: dwt = st × 4,083.3333333333

Reverse: st = dwt × 0.000244898

Step-by-Step Example

Start with your value in Stone. For example: 5 st
Multiply by the conversion factor: 5 x 4,083.3333333333
The result is: 20,416.666667 dwt

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.

About Pennyweight

The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.

Common uses: jewellery trade, gold scrap, assaying.

Frequently Asked Questions

How many Pennyweight are in 1 Stone?

There are exactly 4,083.3333333333 Pennyweight in 1 Stone. This means the conversion factor from Stone to Pennyweight is 4,083.3333333333.

What is the formula to convert Stone to Pennyweight?

The formula to convert Stone to Pennyweight is: dwt = st × 4,083.3333333333. For example, to convert 10 Stone to Pennyweight, you would multiply 10 by 4,083.3333333333.

What is a Stone?