Mass and Weight · Unit Converter

Convert Stone (UK) to Pennyweight

Convert stones (uk) to pennyweights instantly. 1 stone (uk) = 4083.3334383591 pennyweight — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pennyweight to Stone (UK) converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Avoirdupois

Stone (UK)

What is a stone (uk)?

The UK stone (st) equals 14 pounds, about 6.35 kilograms.

Origin of the stone (uk)

From standardized market 'stones' once used for weighing goods.

Where it is used

Body weight in the United Kingdom and Ireland.

When and where it was developed

Fixed at 14 pounds by British statute in 1835.

Troy & Apothecary

Pennyweight

What is a pennyweight?

The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).

Origin of the pennyweight

From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.

Where it is used

Jewelry making and precious-metal scrap valuation in the US.

When and where it was developed

Derived from the medieval English coinage system.

Stone (UK) to Pennyweight conversion formula

The relationship between stones (uk) and pennyweights:

1 st = 4083.3334383591 dwt
1 dwt = 0.000244898 st

To convert stones (uk) to pennyweights, multiply the value in stones (uk) by 4083.3334383591. To reverse, multiply pennyweights by 0.000244898.

How to use this converter

Type a value into the calculator. The result in pennyweights updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pennyweight to Stone (UK) converter for the reverse direction.

Step-by-step: convert stones (uk) to pennyweights

  1. Write down the value in stones (uk) (st).
  2. Multiply that value by the factor 4083.3334383591.
  3. The product is the equivalent value in pennyweights (dwt).
  4. To reverse, multiply the pennyweight value by 0.000244898.

Worked examples

Example 1 — Convert 1 st to dwt:
1 × 4083.3334383591 = 4083.3334383591 dwt

Example 2 — Convert 100 st to dwt:
100 × 4083.3334383591 = 408333.3438359108 dwt

Real-world example — Body height conversion (reverse direction)

You measure 1.75 stones (uk) tall and need to fill in a gym membership form or medical record that asks for height in pennyweights. This is the most-used everyday length conversion in metric-using countries.

1.75 st × 4083.3334383591 = 7145.8335171284 dwt

Real-world example — Pet and accessory dimensions

A 3-stone (uk) dog leash equals a tidy round value in pennyweights. Pet-supply shopping frequently mixes the two units across product specifications.

3 st × 4083.3334383591 = 12250.0003150773 dwt

Real-world example — Fabric and tailoring

One stone (uk) of fabric converts to a value in pennyweights commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.

1 st × 4083.3334383591 = 4083.3334383591 dwt

Stone (UK) to Pennyweight conversion table

Standard reference values for converting stones (uk) to pennyweights:

Stone (UK) [st]Pennyweight [dwt]
0.0140.8333343836
0.1408.3333438359
14083.3334383591
28166.6668767182
312250.0003150773
416333.3337534364
520416.6671917955
1040833.3343835911
2081666.6687671822
30122500.0031507732
40163333.3375343643
50204166.6719179554
100408333.3438359108
5002041666.7191795541
10004083333.4383591083

Frequently asked questions

How many pennyweights is 1 stone (uk)?
1 stone (uk) equals 4083.3334383591 pennyweight.
How do I convert stones (uk) to pennyweights?
Multiply the value in stones (uk) by 4083.3334383591 to get pennyweights.
How do I convert pennyweights back to stones (uk)?
Multiply the value in pennyweights by 0.000244898, or use the Pennyweight to Stone (UK) converter.
How many pennyweights is 100 stones (uk)?
100 stones (uk) equals 408333.3438359108 pennyweights, because 100 × 4083.3334383591 = 408333.3438359108.

Convert Stone (UK) to other weight units

Show all Stone (UK) conversions
Metric / SI (18 units)
Stone (UK) to Attogram (ag) Stone (UK) to Femtogram (fg) Stone (UK) to Picogram (pg) Stone (UK) to Nanogram (ng) Stone (UK) to Microgram (µg) Stone (UK) to Milligram (mg) Stone (UK) to Centigram (cg) Stone (UK) to Decigram (dg) Stone (UK) to Gram (g) Stone (UK) to Dekagram (dag) Stone (UK) to Hectogram (hg) Stone (UK) to Kilogram (kg) Stone (UK) to Quintal (metric) (q) Stone (UK) to Metric Ton (t) Stone (UK) to Gigagram (Gg) Stone (UK) to Teragram (Tg) Stone (UK) to Petagram (Pg) Stone (UK) to Exagram (Eg)
Avoirdupois (14 units)
Stone (UK) to Grain (gr) Stone (UK) to Dram (avoirdupois) (dr) Stone (UK) to Ounce (oz) Stone (UK) to Pound (lb) Stone (UK) to Clove (clove) Stone (UK) to Stone (US) (st) Stone (UK) to Quarter (US) (qr) Stone (UK) to Quarter (UK) (qr) Stone (UK) to Hundredweight (US) (cwt) Stone (UK) to Hundredweight (UK) (cwt) Stone (UK) to Wey (wey) Stone (UK) to Kilopound (kip) (kip) Stone (UK) to Ton (short, US) (sh tn) Stone (UK) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Stone (UK) to Point (1/100 carat) (pt) Stone (UK) to Carat (metric) (ct) Stone (UK) to Scruple (apothecary) (s ap) Stone (UK) to Pennyweight (dwt) Stone (UK) to Momme (mom) Stone (UK) to Mace (mace) Stone (UK) to Dram (apothecary/troy) (dr ap) Stone (UK) to Troy Ounce (oz t) Stone (UK) to Tael (tael) Stone (UK) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Stone (UK) to Ratti (ratti) Stone (UK) to Masha (masha) Stone (UK) to Tola (tola) Stone (UK) to Chittack (Chatank) (chittack) Stone (UK) to Seer (Ser) (seer) Stone (UK) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Stone (UK) to Electron Mass (rest) (me) Stone (UK) to MeV/c2 (MeV/c²) Stone (UK) to Muon Mass (mµ) Stone (UK) to Atomic Mass Unit (u) Stone (UK) to Proton Mass (mp) Stone (UK) to Neutron Mass (mn) Stone (UK) to Deuteron Mass (md) Stone (UK) to Carbon-12 Atom Mass (C-12) Stone (UK) to Planck Mass (mP)
Astronomical (4 units)
Stone (UK) to Lunar Mass (Moon) (M☾) Stone (UK) to Earth's Mass (M⊕) Stone (UK) to Jupiter Mass (MJ) Stone (UK) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Stone (UK) to Lepton (Biblical Roman) (lepton) Stone (UK) to Quadrans (Biblical Roman) (quadrans) Stone (UK) to Assarion (Biblical Roman) (assarion) Stone (UK) to Gerah (Biblical Hebrew) (gerah) Stone (UK) to Drachma (Biblical Greek) (drachma) Stone (UK) to Denarius (Biblical Roman) (denarius) Stone (UK) to Bekan (Biblical Hebrew) (bekah) Stone (UK) to Didrachma (Biblical Greek) (didrachma) Stone (UK) to Shekel (Biblical Hebrew) (shekel) Stone (UK) to Tetradrachma (Biblical Greek) (tetra) Stone (UK) to Mina (Biblical Greek) (mina) Stone (UK) to Mina (Biblical Hebrew) (mina) Stone (UK) to Talent (Biblical Greek) (talent) Stone (UK) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Stone (UK) to Poundal (pdl) Stone (UK) to Ton (assay) (US) (AT) Stone (UK) to Ton (assay) (UK) (AT) Stone (UK) to Kilogram-force square second/meter (hyl) Stone (UK) to Slug (slug)

Sources & references

Conversion factor (1 st = 4083.3334383591 dwt) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.