Ounce(oz)
The ounce is a customary mass unit equal to exactly 28.349523125 grams.
Reviewed
- Symbol
- oz
- Quantity
- Mass
- Measurement system
- Imperial and US customary
- SI classification
- Non-SI unit
- Reference unit
- Kilogram
- Exact relationship
- 1 oz = 0.028349523125 kg exactly
What the ounce is
The ounce is a familiar unit for small mass measurements in food, packaging, and customary-weight contexts.