Ounce (oz)
The avoirdupois ounce: one sixteenth of a pound.
Result
1 ounce = 28.34952313 grams
Ounce at a glance
| Unit name | Ounce (plural: ounces) |
|---|---|
| Symbol | oz |
| Quantity measured | Weight & Mass |
| Measurement system | US customary |
| Also known as | oz, ounces, avoirdupois ounce |
| Definition exact? | Yes — exact by definition |
1 ounce in other weight & mass units
| Unit | 1 oz equals |
|---|---|
| Microgram | 28,349,523.1 µg |
| Milligram | 28,349.5231 mg |
| Gram | 28.3495231 g |
| Kilogram | 0.028349523 kg |
| Metric ton | 0.00002835 t |
| Pound | 0.0625 lb |
| Stone | 0.004464286 st |
| US short ton | 0.00003125 ton |
| Imperial long ton | 0.000027902 long ton |
| Carat | 141.747616 ct |
| Grain | 437.5 gr |
| Dram | 16 dr |
| Troy ounce | 0.911458333 ozt |
| US hundredweight | 0.000625 cwt |
| Imperial hundredweight | 0.000558036 long cwt |
Popular ounce conversions
Frequently asked questions
- What is a ounce?
- The avoirdupois ounce: one sixteenth of a pound.
- What is the symbol for the ounce?
- The symbol for the ounce is oz. It measures weight & mass.
- How many grams are in a ounce?
- 1 ounce = 28.3495231 grams.
- How many kilograms are in a ounce?
- 1 ounce = 0.028349523 kilograms.
- How many metric tons are in a ounce?
- 1 ounce = 0.00002835 metric tons.