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Ounce to Kilogram Converter

Convert Ounce (oz) to Kilogram (kg) instantly. Enter any value — result updates live.

Weight Converter
Result
0.0283495kg
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Formula: 1 oz = 0.0283495 kg

About converting Ounce to Kilogram

Converting Ounce to Kilogram is a common weight conversion. One ounce (oz) equals 0.0283495 kilogram (kg). Ounces are used for food portions, postal weights, and precious metals in the US and UK.

This conversion is commonly needed for cooking and recipe conversions, fitness and body weight tracking, shipping and postage calculations. The kilogram is the base SI unit of mass, used globally in science, commerce, and daily life.

To put ounce in perspective: a slice of bread (about 1 oz). In kilogram, common references include a bag of sugar (1 kg).

Did you know?

The word 'ounce' derives from the Latin 'uncia,' which was one-twelfth of a Roman pound.

Real-world examples
Ounce (oz)
  • a slice of bread (about 1 oz)
  • a standard letter (under 1 oz for standard postage)
  • a baseball (about 5 oz)
Kilogram (kg)
  • a bag of sugar (1 kg)
  • an average adult man (about 80 kg)
  • a grand piano (about 300 kg)
Did you know?

The kilogram was the last SI base unit still defined by a physical artifact (a platinum-iridium cylinder in Paris) until 2019, when it was redefined using the Planck constant.

Common uses for weight conversion

People frequently convert between ounce and kilogram for:

  • cooking and recipe conversions
  • fitness and body weight tracking
  • shipping and postage calculations
  • medical dosage calculations
  • grocery shopping abroad
Popular Ounce to Kilogram conversions
Ounce (oz)Kilogram (kg)
1 oz0.0283495 kg
2 oz0.056699 kg
5 oz0.1417475 kg
10 oz0.283495 kg
15 oz0.4252425 kg
20 oz0.56699 kg
25 oz0.7087375 kg
30 oz0.850485 kg
50 oz1.41748 kg
100 oz2.83495 kg
200 oz5.6699 kg
500 oz14.1747 kg
1000 oz28.3495 kg
More Ounce conversions
Ounce to Gramoz → gOunce to Milligramoz → mgOunce to Poundoz → lbOunce to Metric Tonoz → tOunce to Stoneoz → stOunce to US Tonoz → tonOunce to Microgramoz → μg
Frequently asked questions
How do you convert Ounce to Kilogram?
To convert Ounce to Kilogram, use the formula: 1 oz = 0.0283495 kg. For example, 1 oz = 0.0283495 kg.
What is 1 Ounce in Kilogram?
1 oz is equal to 0.0283495 kg.
How many ounce are in 1 kilogram?
1 kg is equal to 35.274 oz. To convert Kilogram back to Ounce, multiply the kilogram value by 35.274.
When would I need to convert ounce to kilogram?
This conversion is commonly needed for cooking and recipe conversions, fitness and body weight tracking, shipping and postage calculations, medical dosage calculations, grocery shopping abroad. Ounces are used for food portions, postal weights, and precious metals in the US and UK. The kilogram is the base SI unit of mass, used globally in science, commerce, and daily life.
What does 1 ounce look like in real life?
For reference, some common ounce measurements include: a slice of bread (about 1 oz); a standard letter (under 1 oz for standard postage); a baseball (about 5 oz). So 1 oz (0.0283495 kg) gives you a practical sense of scale.
Is this Ounce to Kilogram converter free?
Yes — metriqcon.co is completely free to use. All conversions run instantly in your browser with no server required. You can also type math expressions like (12 × 4) + 6.5 directly into the input field.
Can I share or bookmark this conversion?
Yes — every conversion on metriqcon.co has a unique URL. You can share the link directly or use the Share button to copy a link that includes your specific value and units.