Convert ounces to kilograms
1 oz = 0.02834952 kg. Change the amount below, or read the formula and the reference table further down.
1 ounce equals
kilograms
1 oz = 0.02834952 kg
The formula
Ounces and kilograms both measure weight & mass from the same zero, so a single multiplier does the job.
kg = oz × 0.0283495231
Going the other way? Convert kilograms to ounces.
Ounces to kilograms table
Common values, rounded for reading.
| Ounces (oz) | Kilograms (kg) |
|---|---|
| 1 | 0.02835 |
| 2 | 0.056699 |
| 3 | 0.085049 |
| 4 | 0.113398 |
| 5 | 0.141748 |
| 6 | 0.170097 |
| 7 | 0.198447 |
| 8 | 0.226796 |
| 9 | 0.255146 |
| 10 | 0.283495 |
| 15 | 0.425243 |
| 20 | 0.56699 |
| 25 | 0.708738 |
| 30 | 0.850486 |
| 40 | 1.134 |
| 50 | 1.4175 |
| 75 | 2.1262 |
| 100 | 2.835 |
| 250 | 7.0874 |
| 500 | 14.1748 |
| 1,000 | 28.3495 |
Questions people ask
- How many kilograms are in a ounce?
- One ounce equals 0.0283495231 kilograms.
- How do I convert ounces to kilograms by hand?
- Multiply the number of ounces by 0.0283495231. For a rough check, 0.028 is close enough for most everyday use.
- What is 1 ounce in kilograms?
- 1 ounce is 0.02834952 kilograms.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.