An avoirdupois ounce is 1/16 pound.
Ounces to Metric tons Converter — oz to t
Convert Ounce (oz) to Metric ton (t) using the exact conversion factor (1 ounce = 0.0000283495 metric ton). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Ounces to Metric tons converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
A metric ton is 1,000 kilograms.
Result = input x 0.02834952313 / 1000.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces to Metric tons
Weight conversions between Ounce and Metric ton come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Ounce is typically associated with united States (cooking, postal, retail), while Metric ton is typically associated with used worldwide except the US, which uses the short ton (2,000 lb).
Formula
metric tons = ounces × 0.000028349523125
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce equals 0.028349523125 base units, and 1 metric ton equals 1000 base units, so dividing one by the other gives the direct ounce-to-metric ton factor of 0.000028349523125.
Simple example
1 oz × 0.00002834952313 = 0.0000283495 t
1 ounce = 0.0000283495 metric tons.
Real-world example
50 oz × 0.00002834952313 = 0.0014174762 t
50 ounces = 0.0014174762 metric tons.
Conversion table
| Ounce (oz) | Metric ton (t) |
|---|---|
| 1 oz | 0.0000283495 t |
| 5 oz | 0.0001417476 t |
| 10 oz | 0.0002834952 t |
| 25 oz | 0.0007087381 t |
| 50 oz | 0.0014174762 t |
| 100 oz | 0.0028349523 t |
Reverse conversion: Metric ton to Ounce
0.0000283495 t × 35273.96195 = 0.9999991843 oz
0.0000283495 metric tons = 0.9999991843 ounces.
ounces = metric tons × 35273.9619496
For a page dedicated to this direction, see Metric ton to Ounce.
Ounce vs. Metric ton
| Aspect | Ounce | Metric ton |
|---|---|---|
| Family | US/imperial customary unit | Non-SI unit accepted for use with SI (also called metric ton) |
| Typical use | US cooking and recipe measurement (small quantities) | International shipping and freight weight |
| Where it's used | United States (cooking, postal, retail) | Used worldwide except the US, which uses the short ton (2,000 lb) |
Understanding the Ounce
Ounce (oz) measures mass. The avoirdupois ounce is 1/16 of a pound: exactly 28.349523125 grams. It is classified as a US/imperial customary unit.
Where it's used: United States (cooking, postal, retail) United Kingdom (informal/retail use)
Avoirdupois ounce vs. troy ounce. The everyday ounce (avoirdupois, 28.35 g) used for cooking and shipping is a different, smaller unit than the troy ounce (31.10 g) used for precious metals like gold and silver — this page uses the everyday avoirdupois ounce.
Uses of the Ounce today
- US cooking and recipe measurement (small quantities)
- US postal and shipping weight
- Precious metals (troy ounce, a related but distinct unit)
History of the Ounce
The ounce descends from the Roman 'uncia' (a twelfth part), inherited through medieval English weight systems; the avoirdupois ounce (for general goods, as opposed to the troy ounce for precious metals) became standard for everyday trade, fixed at exactly 28.349523125 g via the pound's 1959 international standardization.
Historical origin. Ounce was not the invention of a single named person; it developed through the process described above.
Understanding the Metric ton
Metric ton (t) measures mass. A tonne is exactly 1,000 kilograms. It is classified as a Non-SI unit accepted for use with SI (also called metric ton).
Where it's used: Used worldwide except the US, which uses the short ton (2,000 lb)
Tonne vs. US (short) ton vs. UK (long) ton. The metric tonne (1,000 kg ≈ 2,204.6 lb) is different from both the US short ton (2,000 lb ≈ 907.2 kg) and the UK long ton (2,240 lb ≈ 1,016 kg) — all three are used in different shipping and industrial contexts and should not be assumed interchangeable.
Uses of the Metric ton today
- International shipping and freight weight
- Industrial and commodity trade (steel, grain, shipping) worldwide
- Vehicle and cargo weight ratings outside the US
History of the Metric ton
The tonne follows directly from the kilogram via the standard 'kilo-' scaling by 1,000, adopted as a convenient large-mass unit alongside the metric system's spread through international trade and industry from the 19th century onward.
Historical origin. Metric ton was not the invention of a single named person; it developed through the process described above.
Ounce — sources
- NIST — International yard and pound (1959) — Basis for the modern ounce via the standardized pound.
Metric ton — sources
- BIPM SI Brochure — Non-SI units accepted for use with SI — Lists the tonne among accepted non-SI mass units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric tons are in 1 ounce?
1 ounce equals 0.0000283495 metric tons, using the exact defined conversion factor rather than an estimate.
How do I convert ounce to metric ton?
Multiply the ounce value by 0.00002834952313. The converter above does this instantly to whatever precision you set.
How do I convert metric ton back to ounce?
Use the reverse factor: 1 metric ton equals 35,273.96195 ounces. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce?
Ounce (oz) measures mass. The avoirdupois ounce is 1/16 of a pound: exactly 28.349523125 grams. It is classified as a US/imperial customary unit.
What is a metric ton?
Metric ton (t) measures mass. A tonne is exactly 1,000 kilograms. It is classified as a Non-SI unit accepted for use with SI (also called metric ton).
Is the ounce to metric ton conversion exact?
Yes. A tonne is exactly 1,000 kilograms. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
What is the difference between avoirdupois ounce vs. troy ounce?
The everyday ounce (avoirdupois, 28.35 g) used for cooking and shipping is a different, smaller unit than the troy ounce (31.10 g) used for precious metals like gold and silver — this page uses the everyday avoirdupois ounce.
Where is the ounce still used today?
United States (cooking, postal, retail) United Kingdom (informal/retail use)