Convert Weight from Ounces (oz) to other units

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Ounce Conversion Formulas

Ounce to Microgram Conversion Formula

To convert from Ounce (oz) to Microgram (mcg), use the following formula:

Microgram (mcg)

= 116 × 453.59237 × 106× Ounce (oz)

= 28349523.125× Ounce (oz)

With 453.59237 is the ratio between the base units Gram (g) and Pound (lb).


Ounce to Milligram Conversion Formula

To convert from Ounce (oz) to Milligram (mg), use the following formula:

Milligram (mg)

= 116 × 453.59237 × 1000× Ounce (oz)

= 28349.523125× Ounce (oz)

With 453.59237 is the ratio between the base units Gram (g) and Pound (lb).


Ounce to Gram Conversion Formula

To convert from Ounce (oz) to Gram (g), use the following formula:

Gram (g)

= 116 × 453.59237× Ounce (oz)

= 28.349523125× Ounce (oz)

With 453.59237 is the ratio between the base units Gram (g) and Pound (lb).


Ounce to Kilogram Conversion Formula

To convert from Ounce (oz) to Kilogram (kg), use the following formula:

Kilogram (kg)

= 116 × 453.59237 × 11000× Ounce (oz)

= 0.028349523125× Ounce (oz)

With 453.59237 is the ratio between the base units Gram (g) and Pound (lb).


Ounce to Metric Tonne Conversion Formula

To convert from Ounce (oz) to Metric Tonne (mt), use the following formula:

Metric Tonne (mt)

= 116 × 453.59237 × 1106× Ounce (oz)

= 0.000028349523125× Ounce (oz)

With 453.59237 is the ratio between the base units Gram (g) and Pound (lb).


Ounce to Pound Conversion Formula

To convert from Ounce (oz) to Pound (lb), use the following formula:

Pound (lb)

= 116× Ounce (oz)

= 0.0625× Ounce (oz)


Ounce to Stone Conversion Formula

To convert from Ounce (oz) to Stone (st), use the following formula:

Stone (st)

= 116 × 114× Ounce (oz)

= 1224× Ounce (oz)

= 0.0044642857142857142857× Ounce (oz)


Ounce to Ton Conversion Formula

To convert from Ounce (oz) to Ton (t), use the following formula:

Ton (t)

= 116 × 12000× Ounce (oz)

= 132000× Ounce (oz)

= 0.00003125× Ounce (oz)

What is an Ounce (oz)?

An ounce (oz) is a unit of mass in the imperial system, equal to 0.0625 (or 1/16) Pounds (lb).


What's the Difference Between a Troy Ounce and a Standard Ounce?

While most people are familiar with the standard ounce used for groceries, there is another crucial measurement called the Troy Ounce.

The standard ounce, officially known as the Avoirdupois ounce, is approximately 28.35 grams and is used for weighing everyday items.

The Troy ounce, however, is slightly heavier, at approximately 31.1 grams, and is the universal standard for measuring precious metals, such as gold, silver, and platinum. This distinction is vital in the jewelry and investment markets.


Ounce vs. Fluid Ounce: Are They the Same?

A common point of confusion is the difference between an ounce (oz) and a fluid ounce (fl oz).

An ounce is a unit of mass (weight), while a fluid ounce is a unit of volume.

For example, you would use ounces to weigh a block of cheese but fluid ounces to measure a glass of milk. The weight of one fluid ounce of a liquid depends entirely on its density; one fluid ounce of honey, for instance, weighs more than one fluid ounce of water.


Where Did the Ounce Come From?

The word "ounce" comes from the Latin uncia.

In ancient Rome, an uncia was one-twelfth of a libra (the Roman pound), and that system helped shape many European measures.

Today's avoirdupois ounce is one-sixteenth of a pound. However, the name still preserves a direct link to Rome's old system of weights and measures.


Three Different Ounces

"Ounce" names three distinct quantities, and mixing them up is the single most common error involving the unit.

  • Avoirdupois ounce — the everyday ounce, 28.3495 g, one-sixteenth of a pound. This is what a recipe or a postal scale means.
  • Troy ounce31.1035 g, used only for precious metals. A gold price quoted "per ounce" is always per troy ounce, which is about 10% heavier than the ordinary one.
  • Fluid ounce — not a mass at all, but a volume: about 29.57 mL in the United States and 28.41 mL in the imperial system.

The fluid ounce causes the most trouble because the abbreviations look alike and the numbers are close. Eight ounces of water happens to weigh roughly eight fluid ounces, which makes the confusion survivable for water and badly wrong for flour, honey or oil.