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Convert Tonnes to Troy ounces

1 tonne is 32,150.75 ozt. One tonne is exactly 32150.7465686 troy ounces.

One tonne is 32150.747 troy ounces. To convert tonnes to troy ounces, multiply by 32150.747; to go the other way, divide by 32150.747 or multiply by 3.1103 × 10^-5. 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. One thousand kilograms, also called the metric ton — 2,204.6 pounds.

Factor checked against the defining standard · How we check

Troy ounces
32,150.75 ozt
Tonnes × 32150.747
1 * 32150.74732,150.747 ozt

1 tonne in every weight unit

1 tonne expressed in every weight unit
UnitValueExact factor
ounces35,273.96195 oz× 35,273.9619496
pounds2,204.622622 lb× 2,204.62262185
stone157.4730444 st× 157.473044418
US tons1.102311311 ton× 1.10231131092
micrograms1,000,000,000,000 mcg× 1,000,000,000,000
milligrams1,000,000,000 mg× 1,000,000,000
centigrams100,000,000 cg× 100,000,000
grams1,000,000 g× 1,000,000
kilograms1,000 kg× 1,000
slugs68.52176586 slug× 68.5217658568
tonnes (as entered)1 t—
carats5,000,000 ct× 5,000,000
troy ounces32,150.74657 ozt× 32,150.7465686
grains15,432,358.35 gr× 15,432,358.3529
long tons0.9842065276 LT× 0.984206527611

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 tonnes to troy ounces? The converter and the working

  1. 1.Take the measurement in tonnes.
  2. 2.Multiply by 32150.747 — that is how many troy ounces fit in one tonne.
  3. 3.To go back the other way, divide by 32150.747, or multiply by 3.1103 × 10^-5.

Worked example: 25 tonnes to troy ounces

Formula
t × 32150.747 = ozt
Arithmetic
25 × 32150.747 = 803,768.66 ozt
Answer
25 t = 803,768.66 ozt

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

Tonnes to troy ounces conversion table

Tonnes to troy ounces conversion table
TonnesTroy ounces
1 t32,150.75 ozt
2 t64,301.49 ozt
3 t96,452.24 ozt
4 t128,602.99 ozt
5 t160,753.73 ozt
6 t192,904.48 ozt
7 t225,055.23 ozt
8 t257,205.97 ozt
9 t289,356.72 ozt
10 t321,507.47 ozt
12 t385,808.96 ozt
15 t482,261.2 ozt
20 t643,014.93 ozt
25 t803,768.66 ozt
50 t1,607,537.33 ozt
100 t3,215,074.66 ozt
200 t6,430,149.31 ozt
300 t9,645,223.97 ozt
500 t16,075,373.28 ozt
1000 t32,150,746.57 ozt
2000 t64,301,493.14 ozt
5000 t160,753,732.84 ozt
10000 t321,507,465.69 ozt

What is a tonne?

One thousand kilograms, also called the metric ton — 2,204.6 pounds.

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 tonne?

One tonne is 32150.747 troy ounces. Going the other way, one troy ounce is 3.1103 × 10^-5 tonnes. 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 tonne.

Source: NIST Handbook 44 — mass and weight

Cite this page

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

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Questions people actually ask

How many troy ounces are in a tonne?
32150.747. 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 tonnes?
Divide by 32150.747, or multiply by 3.1103 × 10^-5 — they are the same operation.

Other weight conversions

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

Calculators that work in weight