Mass and Weight · Unit Converter

Convert Stone (UK) to Troy Ounce

Convert stones (uk) to troy ounces instantly. 1 stone (uk) = 204.1666666667 troy ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Troy Ounce 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

Troy Ounce

What is a troy ounce?

The troy ounce (ozt) equals about 31.103 grams, one-twelfth of a troy pound.

Origin of the troy ounce

From the Troy system of weights associated with Troyes, France.

Where it is used

The global standard for pricing gold, silver, platinum, and palladium.

When and where it was developed

Established in the medieval Troy system and retained for precious metals.

Stone (UK) to Troy Ounce conversion formula

The relationship between stones (uk) and troy ounces:

1 st = 204.1666666667 oz t
1 oz t = 0.0048979592 st

To convert stones (uk) to troy ounces, multiply the value in stones (uk) by 204.1666666667. To reverse, multiply troy ounces by 0.0048979592.

How to use this converter

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

Step-by-step: convert stones (uk) to troy ounces

  1. Write down the value in stones (uk) (st).
  2. Multiply that value by the factor 204.1666666667.
  3. The product is the equivalent value in troy ounces (oz t).
  4. To reverse, multiply the troy ounce value by 0.0048979592.

Worked examples

Example 1 — Convert 1 st to oz t:
1 × 204.1666666667 = 204.1666666667 oz t

Example 2 — Convert 100 st to oz t:
100 × 204.1666666667 = 20416.6666666667 oz t

Real-world example — Pet and accessory dimensions

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

3 st × 204.1666666667 = 612.5 oz t

Real-world example — Fabric and tailoring

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

1 st × 204.1666666667 = 204.1666666667 oz t

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 troy ounces. This is the most-used everyday length conversion in metric-using countries.

1.75 st × 204.1666666667 = 357.2916666667 oz t

Stone (UK) to Troy Ounce conversion table

Standard reference values for converting stones (uk) to troy ounces:

Stone (UK) [st]Troy Ounce [oz t]
0.012.0416666667
0.120.4166666667
1204.1666666667
2408.3333333333
3612.5
4816.6666666667
51020.8333333333
102041.6666666667
204083.3333333333
306125
408166.6666666667
5010208.3333333333
10020416.6666666667
500102083.3333333333
1000204166.6666666667

Frequently asked questions

How many troy ounces is 1 stone (uk)?
1 stone (uk) equals 204.1666666667 troy ounce.
How do I convert stones (uk) to troy ounces?
Multiply the value in stones (uk) by 204.1666666667 to get troy ounces.
How do I convert troy ounces back to stones (uk)?
Multiply the value in troy ounces by 0.0048979592, or use the Troy Ounce to Stone (UK) converter.
How many troy ounces is 100 stones (uk)?
100 stones (uk) equals 20416.6666666667 troy ounces, because 100 × 204.1666666667 = 20416.6666666667.

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 = 204.1666666667 oz t) verified against the following authoritative sources:

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