Ounces Conversion
The ounce is a unit used to measure weight. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about ounces.
Ounce Conversion Calculators
Choose a unit of weight to convert to.
US Customary & Imperial Units
- Convert ounces to tons
- 1 ounce is equal to 3.125E-5 tons
- Convert ounces to pounds
- 1 ounce is equal to 0.0625 pounds
SI Units
- Convert ounces to metric tons
- 1 ounce is equal to 2.835E-5 metric tons
- Convert ounces to kilograms
- 1 ounce is equal to 0.02835 kilograms
- Convert ounces to grams
- 1 ounce is equal to 28.349523 grams
- Convert ounces to milligrams
- 1 ounce is equal to 28,350 milligrams
Other Units
- Convert ounces to long tons
- 1 ounce is equal to 2.7902E-5 long tons
- Convert ounces to carats
- 1 ounce is equal to 141.747616 carats
Ounce Definition and Usage
One ounce is a unit of mass/weight equal to 1/16 of a pound. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.
The ounce is a US customary and imperial unit of weight. Ounces can be abbreviated as oz, for example 1 ounce can be written as 1 oz.
Ounces Measurement Conversion Table
| ounces | tons | pounds | metric tons | long tons | kilograms | grams | milligrams | carats |
|---|---|---|---|---|---|---|---|---|
| 1 oz | 0.00003125 t | 0.0625 lb | 0.00002835 t | 0.000027902 lt | 0.02835 kg | 28.349523 g | 28,350 mg | 141.747616 ct |
| 2 oz | 0.0000625 t | 0.125 lb | 0.000056699 t | 0.000055804 lt | 0.056699 kg | 56.699046 g | 56,699 mg | 283.495231 ct |
| 3 oz | 0.00009375 t | 0.1875 lb | 0.000085049 t | 0.000083705 lt | 0.085049 kg | 85.048569 g | 85,049 mg | 425.242847 ct |
| 4 oz | 0.000125 t | 0.25 lb | 0.000113 t | 0.000112 lt | 0.113398 kg | 113.398093 g | 113,398 mg | 566.990463 ct |
| 5 oz | 0.000156 t | 0.3125 lb | 0.000142 t | 0.00014 lt | 0.141748 kg | 141.747616 g | 141,748 mg | 708.738078 ct |
| 6 oz | 0.000188 t | 0.375 lb | 0.00017 t | 0.000167 lt | 0.170097 kg | 170.097139 g | 170,097 mg | 850.485694 ct |
| 7 oz | 0.000219 t | 0.4375 lb | 0.000198 t | 0.000195 lt | 0.198447 kg | 198.446662 g | 198,447 mg | 992.233309 ct |
| 8 oz | 0.00025 t | 0.5 lb | 0.000227 t | 0.000223 lt | 0.226796 kg | 226.796185 g | 226,796 mg | 1,134 ct |
| 9 oz | 0.000281 t | 0.5625 lb | 0.000255 t | 0.000251 lt | 0.255146 kg | 255.145708 g | 255,146 mg | 1,276 ct |
| 10 oz | 0.000313 t | 0.625 lb | 0.000283 t | 0.000279 lt | 0.283495 kg | 283.495231 g | 283,495 mg | 1,417 ct |
| 11 oz | 0.000344 t | 0.6875 lb | 0.000312 t | 0.000307 lt | 0.311845 kg | 311.844754 g | 311,845 mg | 1,559 ct |
| 12 oz | 0.000375 t | 0.75 lb | 0.00034 t | 0.000335 lt | 0.340194 kg | 340.194278 g | 340,194 mg | 1,701 ct |
| 13 oz | 0.000406 t | 0.8125 lb | 0.000369 t | 0.000363 lt | 0.368544 kg | 368.543801 g | 368,544 mg | 1,843 ct |
| 14 oz | 0.000438 t | 0.875 lb | 0.000397 t | 0.000391 lt | 0.396893 kg | 396.893324 g | 396,893 mg | 1,984 ct |
| 15 oz | 0.000469 t | 0.9375 lb | 0.000425 t | 0.000419 lt | 0.425243 kg | 425.242847 g | 425,243 mg | 2,126 ct |
| 16 oz | 0.0005 t | 1 lb | 0.000454 t | 0.000446 lt | 0.453592 kg | 453.59237 g | 453,592 mg | 2,268 ct |
| 17 oz | 0.000531 t | 1.0625 lb | 0.000482 t | 0.000474 lt | 0.481942 kg | 481.941893 g | 481,942 mg | 2,410 ct |
| 18 oz | 0.000563 t | 1.125 lb | 0.00051 t | 0.000502 lt | 0.510291 kg | 510.291416 g | 510,291 mg | 2,551 ct |
| 19 oz | 0.000594 t | 1.1875 lb | 0.000539 t | 0.00053 lt | 0.538641 kg | 538.640939 g | 538,641 mg | 2,693 ct |
| 20 oz | 0.000625 t | 1.25 lb | 0.000567 t | 0.000558 lt | 0.56699 kg | 566.990463 g | 566,990 mg | 2,835 ct |
