Ounces to Kilograms (oz to kg)
1 oz = 0.02834952 kg. Multiply ounces by 0.02834952; the box below does it both ways.
kilograms
12 oz = 0.34019 kg · kilograms to ounces page
How to convert ounces to kilograms
- Take the value in ounces.
- Multiply by 0.02834952 (because 1 oz = 0.02834952 kg).
- Example: 12 oz × 0.02834952 = 0.34019 kg.
- Going back: divide by 0.02834952, or multiply by 35.273962.
Where this comes up
Divide by 35.274. Baby weights in US charts (7 lb 8 oz is 120 oz, 3.4 kg) and parcel weights on US courier sites are the usual reason.
| oz | kg |
|---|---|
| 1 | 0.02835 |
| 4 | 0.1134 |
| 8 | 0.2268 |
| 12 | 0.34019 |
| 16 | 0.45359 |
| 20 | 0.56699 |
| 24 | 0.68039 |
| 32 | 0.90718 |
| 35.27 | 0.99989 |
| 48 | 1.3608 |
| 64 | 1.8144 |
| 100 | 2.835 |
| 128 | 3.6287 |
| 160 | 4.5359 |
Questions people ask
How many kilograms are in 1 ounce?
1 oz = 0.02834952 kg. To convert, multiply the ounce value by 0.02834952.
What is 32 oz in kg?
32 oz is 0.90718 kg.
How do I convert kilograms back to ounces?
Divide by 0.02834952, or multiply by 35.273962: 1 kg = 35.273962 oz.
More weight conversions
Kilograms to Ounces (kg to oz) · kg to lb · lb to kg · g to oz · oz to g · st to kg · kg to st · lb to g · all converters
Factors are the exact international definitions; last checked 2026-10-10.