Convert Ounces to Kilograms
1 oz = 0.0283495 kg
Conversion Table
| ounces (oz) | kilograms (kg) |
|---|---|
| 0.5 | 0.0141747 |
| 1 | 0.0283495 |
| 2 | 0.056699 |
| 5 | 0.141747 |
| 10 | 0.283495 |
| 25 | 0.708738 |
| 50 | 1.4175 |
| 100 | 2.835 |
| 250 | 7.0874 |
| 500 | 14.1747 |
| 1000 | 28.3495 |
How to Convert ounces to kilograms
To convert ounces to kilograms, multiply the value by the conversion factor:
For example: 10 oz = 0.283495 kg
Related Converters
About ounces and kilograms
The Conversion Formula
To convert ounces to kilograms, multiply the value by the conversion factor: 1 oz = 0.0283495 kg. For a worked example, suppose you need to convert 25 oz to kilograms: 25 × 0.0283495 = 0.708738 kg. To convert in the opposite direction, divide by 0.0283495, or equivalently multiply by 35.274.
About ounces
The ounce derives from the Roman 'uncia', meaning 'one twelfth', originally referring to 1/12th of a Roman pound. However, in the modern avoirdupois system used in the US and UK, an ounce is 1/16th of a pound. This unit is critical for precision in non-metric cooking and for measuring precious metals (though gold uses the 'troy ounce', which is slightly heavier). ounces are commonly used in Steak and meat portioning, Postal letter weights, Precious metals (Troy oz), and Liquid volume (fluid oz - different unit), Spices and seasonings.
A AA battery weighs just under 1 ounce.
About kilograms
The kilogram (kg) is the base unit of mass in the International System of Units (SI). Established in 1795 as the mass of one liter of water at the freezing point, it has been the world's standard for over two centuries. Until 2019, it was defined by a physical platinum-iridium cylinder locked in a vault in Paris (Le Grand K). Today, it is defined by the Planck constant, a fundamental constant of quantum physics, ensuring it remains stable and precise forever. kilograms are commonly used in Body weight (worldwide except US), Gym equipment (plates/dumbbells), International shipping, and Scientific mass measurements, Food packaging (globally).
A liter of bottled water weighs exactly 1 kilogram.
When Would You Convert ounces to kilograms?
Converting between ounces and kilograms is one of the most common weight conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 oz = 0.0283495 kg) memorized or bookmarked can save time in professional and everyday contexts alike.