Direct conversion
Convert ounce [oz] to kilogram [kg] instantly with formula, examples, chart, and FAQs.
1 ounce [oz] = 0.02835 kilogram [kg]
1 ounce [oz] = 0.02835 kilogram [kg]
Example: 1 ounce [oz] equals 0.02835 kilogram [kg].
Weight and mass conversions use kilogram as the reference unit. Common factors include 1 pound = 0.45359237 kilogram and 1 ounce = 0.028349523125 kilogram.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The ounce is an avoirdupois mass unit equal to 28.349523125 grams.
HistoryThe avoirdupois ounce became the standard ounce for general weight measurement.
Current useOunces are used for food packages, recipes, postal weights, consumer goods, and small shipments.
The kilogram is the SI base unit of mass and is the reference unit for the weight and mass converter.
HistoryThe kilogram was historically tied to a physical prototype and is now defined using the Planck constant.
Current useKilograms are used for body weight, groceries, shipping, science, medicine, fitness, and commercial weighing.
| ounce [oz] | kilogram [kg] |
|---|---|
| 1 | 0.02835 |
| 2 | 0.056699 |
| 5 | 0.141748 |
| 10 | 0.283495 |
| 20 | 0.56699 |
| 25 | 0.708738 |
| 50 | 1.417476 |
| 100 | 2.834952 |
| 1000 | 28.349523 |
Use this formula: 1 ounce [oz] = 0.02835 kilogram [kg] Enter your value in the calculator and the result updates instantly.
1 ounce [oz] equals 0.02835 kilogram [kg].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.