Skip to the calculator
Rule Calculator

Convert Stone to Troy ounces

1 stone is 204.17 ozt. One stone is exactly 204.166666667 troy ounces.

One stone is 204.16667 troy ounces. To convert stone to troy ounces, multiply by 204.16667; to go the other way, divide by 204.16667 or multiply by 0.0048979592. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. Fourteen pounds.

Factor checked against the defining standard · How we check

Troy ounces
204.17 ozt
Stone × 204.16667
1 * 204.16667204.167 ozt

1 stone in every weight unit

1 stone expressed in every weight unit
UnitValueExact factor
ounces224 oz× 224
pounds14 lb× 14
stone (as entered)1 st—
US tons0.007 ton× 0.007
micrograms6,350,293,180 mcg× 6,350,293,180
milligrams6,350,293.18 mg× 6,350,293.18
centigrams635,029.318 cg× 635,029.318
grams6,350.29318 g× 6,350.29318
kilograms6.35029318 kg× 6.35029318
slugs0.4351333024 slug× 0.435133302402
tonnes0.00635029318 t× 0.00635029318
carats31,751.4659 ct× 31,751.4659
troy ounces204.1666667 ozt× 204.166666667
grains98,000 gr× 98,000
long tons0.00625 LT× 0.00625

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert stone to troy ounces? The converter and the working

  1. 1.Take the measurement in stone.
  2. 2.Multiply by 204.16667 — that is how many troy ounces fit in one stone.
  3. 3.To go back the other way, divide by 204.16667, or multiply by 0.0048979592.

Worked example: 25 stone to troy ounces

Formula
st × 204.16667 = ozt
Arithmetic
25 × 204.16667 = 5,104.17 ozt
Answer
25 st = 5,104.17 ozt

The factor is rounded for display; the figure above is computed from the full value.

Stone to troy ounces conversion table

Stone to troy ounces conversion table
StoneTroy ounces
1 st204.17 ozt
2 st408.33 ozt
3 st612.5 ozt
4 st816.67 ozt
5 st1,020.83 ozt
6 st1,225 ozt
7 st1,429.17 ozt
8 st1,633.33 ozt
9 st1,837.5 ozt
10 st2,041.67 ozt
12 st2,450 ozt
15 st3,062.5 ozt
20 st4,083.33 ozt
25 st5,104.17 ozt
50 st10,208.33 ozt
100 st20,416.67 ozt
200 st40,833.33 ozt
300 st61,250 ozt
500 st102,083.33 ozt
1000 st204,166.67 ozt
2000 st408,333.33 ozt
5000 st1,020,833.33 ozt
10000 st2,041,666.67 ozt

What is a stone?

Fourteen pounds. Still the everyday unit of body weight in Britain and Ireland, and nowhere else.

What is a troy ounce?

Exactly 31.1034768 grams, and the only ounce bullion is ever quoted in. It is about 10% heavier than the ounce on a kitchen scale, so a "pound" of gold — twelve troy ounces — is lighter than a pound of anything else.

How many troy ounces are in a stone?

One stone is 204.16667 troy ounces. Going the other way, one troy ounce is 0.0048979592 stone. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every weight unit here

The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a stone.

Source: NIST Handbook 44 — mass and weight

Cite this page

APA
Rule Calculator. (2026). Convert Stone to troy ounces. Rule Calculator. https://rulecalculators.com/convert/stone-to-troy-ounce
MLA
"Convert Stone to troy ounces." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/stone-to-troy-ounce.
Chicago
Rule Calculator. "Convert Stone to troy ounces." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/stone-to-troy-ounce.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many troy ounces are in a stone?
204.16667. Exactly 31.1034768 grams, and the only ounce bullion is ever quoted in. It is about 10% heavier than the ounce on a kitchen scale, so a "pound" of gold — twelve troy ounces — is lighter than a pound of anything else.
How do I convert troy ounces back to stone?
Divide by 204.16667, or multiply by 0.0048979592 — they are the same operation.

Other weight conversions

Troy ounces to stone — the same conversion the other way.

Calculators that work in weight