Ounces to Tonnes Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert ounces to tonnes, multiply by 0.00002834952. For example, 10 oz is 0.0002834952 t. One ounce equals 0.00002834952 t.

Use the Ounces to Tonnes Converter

Ounces to Tonnes formula and what each symbol means

t = oz × 0.00002834952

Symbols used in the formula
SymbolMeaning
ozOunce
tTonne

Ounces to Tonnes examples

1 oz

1 oz × 0.00002834952 = 0.00002834952 t.

10 oz

10 oz × 0.00002834952 = 0.0002834952 t.

100 oz

100 oz × 0.00002834952 = 0.002834952 t.

Ounces compared with Tonnes

One t is 35,270 times as large as one oz, so your number gets smaller when you convert ounces to tonnes and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

About ounces and tonnes

Ounce (oz): The avoirdupois ounce, exactly one sixteenth of a pound. Tonne (t): The metric tonne, 1,000 kilograms.

Where ounces to tonnes conversions are used

Gym plates, luggage allowances and medical dosing by body mass all need a quick, correct mass conversion. Recipes, parcels and body weight are the everyday cases, and they often switch between kilograms, grams, pounds and ounces.

How to calculate Ounces to Tonnes step by step

  1. Enter the value in oz (the starting unit).
  2. Multiply by 0.00002834952, because 1 oz = 0.00002834952 t.
  3. The product is the value in t. To go back, divide by 0.00002834952 or multiply by 35,273.96.

Popular weight and mass conversions

How to read your Ounces to Tonnes result

Quick estimate: multiply by about 0.000028 to get tonnes from ounces; this is within 1.3% of the exact factor. In everyday use the two are treated as the same on Earth, and these converters work on mass.

OUNCESTONNES
10.00002834952
20.00005669905
50.0001417476
100.0002834952
200.0005669905
500.001417476
1000.002834952
1,0000.02834952

Tonnes to Ounces: quick table

TONNESOUNCES
135,273.96
5176,369.8
10352,739.6
25881,849
501,763,698
1003,527,396
2508,818,490
50017,636,980

Common mistakes when calculating Ounces to Tonnes

  • Forgetting that a stone is 14 pounds, not 10.
  • Dividing when you should multiply: from oz to t multiply by 0.00002834952; from t to oz divide by 0.00002834952.

Ounces to Tonnes FAQ

How many t are in 1 oz?

1 oz equals 0.00002834952 t.

How many oz are in 1 t?

1 t equals 35,273.96 oz.

Is 1 oz = 0.00002834952 t an exact conversion?

Yes. The ounce and the tonne are both defined exactly in SI terms, so the ratio has no measurement uncertainty; 0.00002834952 is just that ratio shown to 7 significant figures.

What is a tonne (t)?

The metric tonne, 1,000 kilograms.

How can I estimate ounces to tonnes in my head?

Quick estimate: multiply by about 0.000028 to get tonnes from ounces; this is within 1.3% of the exact factor.

What is 300 oz in tonnes?

300 oz = 0.008504857 t (since 300 × 0.00002834952).

What is 12 oz in tonnes?

12 oz = 0.0003401943 t (since 12 × 0.00002834952).

What is 60 oz in tonnes?

60 oz = 0.001700971 t (since 60 × 0.00002834952).

How many decimals should I keep when converting oz to t?

Match the precision of your original measurement. For example, 0.0002834952 t rounds to 0.000283 t at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI base units