Convert Troy ounces to Ounces
1 troy ounce is 1.1 oz. One troy ounce is exactly 1.09714285714 ounces.
One troy ounce is 1.0971429 ounces. To convert troy ounces to ounces, multiply by 1.0971429; to go the other way, divide by 1.0971429 or multiply by 0.91145833. 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. Exactly 31.1034768 grams, and the only ounce bullion is ever quoted in.
Factor checked against the defining standard · How we check
- Troy ounces × 1.0971429
1 * 1.09714291.097 oz
1 troy ounce in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 1.097142857 oz | × 1.09714285714 |
| pounds | 0.06857142857 lb | × 0.0685714285714 |
| stone | 0.004897959184 st | × 0.00489795918367 |
| US tons | 0.00003428571429 ton | × 0.0000342857142857 |
| micrograms | 31,103,476.8 mcg | × 31,103,476.8 |
| milligrams | 31,103.4768 mg | × 31,103.4768 |
| centigrams | 3,110.34768 cg | × 3,110.34768 |
| grams | 31.1034768 g | × 31.1034768 |
| kilograms | 0.0311034768 kg | × 0.0311034768 |
| slugs | 0.002131265155 slug | × 0.00213126515462 |
| tonnes | 0.0000311034768 t | × 0.0000311034768 |
| carats | 155.517384 ct | × 155.517384 |
| troy ounces (as entered) | 1 ozt | — |
| grains | 480 gr | × 480 |
| long tons | 0.0000306122449 LT | × 0.000030612244898 |
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 troy ounces to ounces? The converter and the working
- 1.Take the measurement in troy ounces.
- 2.Multiply by 1.0971429 — that is how many ounces fit in one troy ounce.
- 3.To go back the other way, divide by 1.0971429, or multiply by 0.91145833.
Worked example: 25 troy ounces to ounces
- Formula
- ozt × 1.0971429 = oz
- Arithmetic
- 25 × 1.0971429 = 27.43 oz
- Answer
- 25 ozt = 27.43 oz
The factor is rounded for display; the figure above is computed from the full value.
Troy ounces to ounces conversion table
| Troy ounces | Ounces |
|---|---|
| 1 ozt | 1.1 oz |
| 2 ozt | 2.19 oz |
| 3 ozt | 3.29 oz |
| 4 ozt | 4.39 oz |
| 5 ozt | 5.49 oz |
| 6 ozt | 6.58 oz |
| 7 ozt | 7.68 oz |
| 8 ozt | 8.78 oz |
| 9 ozt | 9.87 oz |
| 10 ozt | 10.97 oz |
| 12 ozt | 13.17 oz |
| 15 ozt | 16.46 oz |
| 20 ozt | 21.94 oz |
| 25 ozt | 27.43 oz |
| 50 ozt | 54.86 oz |
| 100 ozt | 109.71 oz |
| 200 ozt | 219.43 oz |
| 300 ozt | 329.14 oz |
| 500 ozt | 548.57 oz |
| 1000 ozt | 1,097.14 oz |
| 2000 ozt | 2,194.29 oz |
| 5000 ozt | 5,485.71 oz |
| 10000 ozt | 10,971.43 oz |
The ounce gold is priced in is 10% heavier than the one on a kitchen scale
A troy ounce is exactly 31.1034768 g; the avoirdupois ounce is 28.349523125 g. Bullion, and only bullion, is quoted per troy ounce, so a spot price of $2,400 an ounce is $2,400 for 31.1 g rather than 28.3. The troy pound compounds the confusion by holding twelve of its ounces instead of sixteen, which makes it lighter than an ordinary pound despite the heavier ounce.
NIST Handbook 44, Appendix C — general tables of units of measurement
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.
What is an ounce?
One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
How many ounces are in a troy ounce?
One troy ounce is 1.0971429 ounces. Going the other way, one ounce is 0.91145833 troy ounces. 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 troy ounce.
Cite this page
- APA
- Rule Calculator. (2026). Convert Troy ounces to ounces. Rule Calculator. https://rulecalculators.com/convert/troy-ounce-to-ounce
- MLA
- "Convert Troy ounces to ounces." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/troy-ounce-to-ounce.
- Chicago
- Rule Calculator. "Convert Troy ounces to ounces." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/troy-ounce-to-ounce.
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Questions people actually ask
- How many ounces are in a troy ounce?
- 1.0971429. One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
- How do I convert ounces back to troy ounces?
- Divide by 1.0971429, or multiply by 0.91145833 — they are the same operation.
Other weight conversions
Ounces to troy ounces — the same conversion the other way.