Ounce to KilogramConverter
Instantly convert Ounce (oz) to Kilogram (kg). Free, accurate, and easy to use.
How to Convert Ounce to Kilogram
To convert Ounce (oz) to Kilogram (kg), multiply your value by 0.0283495.
Example: 5 oz × 0.0283495 = 0.1417475 kg
What is a Ounce?
The avoirdupois ounce equals 1/16 of a pound or approximately 28.3495 grams, used in the United States for food products, postal weights, and retail measurements. It differs from the troy ounce (31.1035 g) used for precious metals such as gold and silver. The word 'ounce' comes from the Latin 'uncia,' meaning one twelfth (its fraction in the earlier Roman system). A standard slice of sandwich bread weighs approximately 28–30 grams, or about 1 ounce.
What is a Kilogram?
The kilogram is the SI base unit of mass, redefined in 2019 by fixing the Planck constant to an exact numerical value of 6.62607015 × 10⁻³⁴ J·s — replacing the century-old physical platinum-iridium artifact. It is used worldwide for body weight, commercial goods, and scientific measurements. One kilogram equals exactly 2.20462 pounds. The kilogram is also the only SI base unit whose name includes a prefix.
Ounce to Kilogram Conversion Table
| Ounce (oz) | Kilogram (kg) |
|---|---|
| 0.001 oz | 0.00002835 kg |
| 0.01 oz | 0.00028349 kg |
| 0.1 oz | 0.00283495 kg |
| 0.5 oz | 0.01417475 kg |
| 1 oz | 0.0283495 kg |
| 2 oz | 0.056699 kg |
| 5 oz | 0.1417475 kg |
| 10 oz | 0.283495 kg |
| 20 oz | 0.56699 kg |
| 50 oz | 1.417475 kg |
| 100 oz | 2.83495 kg |
| 200 oz | 5.6699 kg |
| 500 oz | 14.17475 kg |
| 1000 oz | 28.3495 kg |
| 5000 oz | 141.7475 kg |
| 10000 oz | 283.495 kg |
| 50000 oz | 1417.475 kg |
| 100000 oz | 2834.95 kg |
| 1000000 oz | 28349.5 kg |
| 1000000000 oz | 28349500 kg |
Frequently Asked Questions
How do I convert Ounce to Kilogram?
Multiply the Ounce value by 0.0283495. Formula: kg = oz × 0.0283495. Example: 10 oz = 0.283495 kg.
How many Kilogram are in one Ounce?
One Ounce (oz) equals 0.0283495 Kilogram (kg).
How many Ounce are in one Kilogram?
One Kilogram (kg) equals 35.27399072 Ounce (oz).
What is the exact conversion factor from Ounce to Kilogram?
The conversion factor is 0.0283495. Multiply any oz value by this number to get kg. For the reverse, multiply by 35.27399072.
How do I convert Kilogram back to Ounce?
Divide by 0.0283495, or equivalently multiply by 35.27399072. Formula: oz = kg ÷ 0.0283495.
Is the Ounce-to-Kilogram conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 0.0283495 is exact and universally agreed upon.