Tonnes to Ounces
An instant tonnes-to-ounces converter, with the formula and a reference table below.
| Tonnes | Ounces |
|---|---|
| 1 t | 35273.96195 oz |
| 2 t | 70547.923899 oz |
| 3 t | 105821.885849 oz |
| 5 t | 176369.809748 oz |
| 10 t | 352739.619496 oz |
| 25 t | 881849.04874 oz |
| 50 t | 1763698.097479 oz |
| 100 t | 3527396.194958 oz |
How to use
- Enter a value in the Tonnes field.
- The Ounces figure appears immediately — no button to press.
- Typing in the Ounces field converts back to Tonnes the same way.
- Use the reference table for the values that come up most often.
Tonnes to Ounces formula
To convert tonnes to ounces, multiply by 35273.9619.
oz = t × 35273.9619
Why this factor: the tonne and the ounce are both defined against the kilogram, so dividing one definition by the other gives 35273.9619 directly. Both definitions are set out in full below.
To go the other way, divide by 35273.9619 — or use the Ounces to Tonnes converter, which is the same calculation reversed.
Worked example
Take 2 t and multiply by the factor 35273.9619: the result is 70547.923899 oz.
2 t × 35273.9619 = 70547.923899 oz
The converter above does this for any value you type, in either direction.
What is a tonne?
A tonne, or metric ton, is 1,000 kilograms — the standard unit for bulk freight and industrial quantities.
Definition: Exactly 1,000 kilograms. Accepted for use with SI but not itself an SI unit.
Where it is used: Shipping and freight, steel and cement output, vehicle masses, and carbon emissions accounting.
Worth knowing: Distinct from the US short ton (2,000 lb ≈ 907 kg) and the UK long ton (2,240 lb ≈ 1,016 kg).
What is an ounce?
An ounce is one sixteenth of a pound, used for small weights in the US.
Definition: Exactly 28.349523125 grams — one sixteenth of the international avoirdupois pound.
Where it is used: Food packaging, postal weights, and coffee and spice quantities in the US.
Worth knowing: Not the same as a fluid ounce, which measures volume. Also distinct from the troy ounce (31.103 g) used for gold and silver.
Tonnes vs Ounces
The tonne is a metric unit while the ounce is an imperial unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many ounces are in a tonne?
One tonne equals 35273.9619 ounces.
What is the formula to convert tonnes to ounces?
Multiply the number of tonnes by 35273.9619. To reverse it, divide by 35273.9619 instead.
How do I convert ounces back to tonnes?
Divide by 35273.9619, which is the same as multiplying by 2.83495231e-05.
How many ounces are in 10 tonnes?
10 t works out to 352739.619496 oz.
Is there anything to watch out for with tonnes?
Distinct from the US short ton (2,000 lb ≈ 907 kg) and the UK long ton (2,240 lb ≈ 1,016 kg).
How is the tonne defined?
Exactly 1,000 kilograms. Accepted for use with SI but not itself an SI unit.