Ounces to Kilograms
1 ounce = 0.0283495 kilograms (kg)
Convert ounces to kilograms instantly. 1 ounce = 0.0283495 kilograms. Free, accurate, with conversion table and formula.
Ounce (oz)
Kilogram (kg)
| Unit | 1 oz equals |
|---|---|
| Milligram (mg) | 28,349.5 |
| Gram (g) | 28.3495 |
| Kilogram (kg) | 0.0283495 |
| Metric Ton (t) | 0.0000283495 |
| Ounce (oz) | 1 |
| Pound (lb) | 0.0625 |
| Stone (st) | 0.00446429 |
| US Ton (ton) | 0.00003125 |
How to convert ounces to kilograms
- 1Take your value in ounces (oz).
- 2Multiply by 0.0283495.
- 3The result is your value in kilograms (kg).
Ounces to Kilograms conversion table
| Ounces (oz) | Kilograms (kg) |
|---|---|
| 1 | 0.0283495 |
| 2 | 0.056699 |
| 5 | 0.141748 |
| 10 | 0.283495 |
| 25 | 0.708738 |
| 50 | 1.41748 |
| 100 | 2.83495 |
| 250 | 7.08738 |
| 500 | 14.1748 |
| 1,000 | 28.3495 |
Frequently asked
How many kilograms are in a ounce?
1 ounce equals 0.0283495 kilograms (kg).
How do I convert ounces to kilograms?
Multiply the number of ounces by 0.0283495 to get kilograms.
What is 10 ounces in kilograms?
10 oz equals 0.2835 kg.
What is 100 ounces in kilograms?
100 oz equals 2.835 kg.
How do I convert kilograms back to ounces?
Multiply kilograms by 35.274 (the reciprocal) or use the swap button above.
Where you'll actually use this
Weight (technically mass) measures how much matter an object contains. The kilogram anchors the metric system, while pounds and ounces dominate everyday use in the United States.
- Shipping & freight
Postage, courier rates, and pallet weights swap between kg and lb depending on carrier and destination country.
- Cooking & baking
Precise recipes — especially European baking — call for grams instead of cups or ounces for repeatable results.
- Fitness & nutrition
Body weight, protein intake, and gym plates often need conversion between metric and imperial.
- Travel luggage
Airline weight limits are quoted in kilograms internationally but in pounds for many US domestic carriers.
Common mistakes to avoid
- Confusing mass and weight
Mass is constant; weight depends on gravity. On Earth they're proportional, so converters treat them interchangeably.
- Short ton vs metric ton
A US (short) ton is 2,000 lb ≈ 907 kg. A metric ton is exactly 1,000 kg ≈ 2,205 lb.
- Stone equals 14 pounds
Body weight in the UK is often given in stone — 11 st 4 lb means 158 lb, not 11.4.
Did you know?
In 2019 the kilogram stopped being defined by a physical platinum-iridium cylinder and switched to a fixed value of Planck's constant.
A troy ounce — used for precious metals — is about 31.1 g, around 10% heavier than the everyday avoirdupois ounce.
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