Ounces to Tonnes Converter
1 ounce ≈ 0.0000283495231 tonnes
A unit of mass. The fluid ounce is a unit of volume and lives in the Volume category.
Distinct from the US short ton (2,000 lb) and the imperial long ton (2,240 lb).
1 ounce equals 0.0000283495 tonnes
How to convert ounces to tonnes
These units measure mass. Pounds and ounces mean avoirdupois unless the unit explicitly says troy; a fluid ounce measures volume and requires a density to relate it to mass.
t = oz × 0.00002834952313One ounce is 0.00002834952313 tonnes, so a single multiplication converts any value.
0.000283495 t ≈ 10 × 0.00002834952313A unit of mass. The fluid ounce is a unit of volume and lives in the Volume category.
Distinct from the US short ton (2,000 lb) and the imperial long ton (2,240 lb).
Ounces to tonnes conversion table
Common values in ounces, converted to tonnes.
| Ounces (oz) | Tonnes (t) |
|---|---|
| 1 | 0.000028349523 |
| 2 | 0.000056699046 |
| 3 | 0.000085048569 |
| 4 | 0.00011339809 |
| 5 | 0.00014174762 |
| 10 | 0.00028349523 |
| 20 | 0.00056699046 |
| 25 | 0.00070873808 |
| 50 | 0.0014174762 |
| 100 | 0.0028349523 |
| 250 | 0.0070873808 |
| 500 | 0.014174762 |
| 1,000 | 0.028349523 |
About these units
ounceoz
The avoirdupois ounce: exactly 1/16 pound.
tonnet
The metric ton: exactly 1,000 kilograms.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.