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Ounces to Tonnes Converter

Convert ounce to tonne instantly. Type a value below — the result updates as you type.

When you need to convert ounce to tonne

Weight and mass conversions matter for cooking, shipping, fitness tracking and travel, where a parcel, body weight or recipe amount may be labelled in a system you don't use day to day.

Typical values: 0.5 oz is about 1.41748e-05 t, and 100 oz works out to roughly 0.0028 t. Because the ratio is fixed at 2.83495e-05, you can scale any amount linearly — doubling the ounces doubles the tonnes.

Bathroom scales, kitchen scales and shipping labels frequently mix metric and imperial, so converting cleanly avoids costly mistakes.

How to convert ounce to tonne

One ounce equals 2.83495e-05 tonnes. To convert, multiply the number of ounces by 2.83495e-05:

tonnes = ounces × 2.83495e-05

For example, 10 ounces × 2.83495e-05 = 0.000283495 tonnes.

Ounces to tonnes conversion table

Weight (oz)Tonnes (t)
1 oz2.83495e-05 t
2 oz5.6699e-05 t
3 oz8.50486e-05 t
5 oz0.000141748 t
10 oz0.000283495 t
20 oz0.00056699 t
50 oz0.0014 t
100 oz0.0028 t

FAQ

How many tonnes are in a ounce?

One ounce = 2.83495e-05 tonnes.

How do I convert tonnes back to ounces?

Divide by 2.83495e-05, or use the tonnes to ounces converter.

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