Weight and Mass

Ounces to Kilograms Converter

Convert ounces (oz) to kilograms (kg). 1 ounce = 0.02834952313 kilograms (exact)

1 ounce = 0.028349523125 kilograms

How to convert ounces to kilograms

Formulakg = oz × 0.02834952313

Multiply the value in ounces by 0.02834952313. To go the other way, multiply by 35.27396195 (or divide by 0.02834952313).

An ounce is smaller than a kilogram: it takes 35.27396195 ounces to make one kilogram.

Worked examples

  • 1 ounce1 oz × 0.02834952313 = 0.02834952313 kg
  • 5 ounces5 oz × 0.02834952313 = 0.1417476156 kg
  • 10 ounces10 oz × 0.02834952313 = 0.2834952313 kg
  • 20 ounces20 oz × 0.02834952313 = 0.5669904625 kg
  • 100 ounces100 oz × 0.02834952313 = 2.834952313 kg

Ounces to kilograms conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Ounces to kilograms: 0.1–10 oz
Ounces (oz)Kilograms (kg)
0.1 oz0.0028349523 kg
0.25 oz0.0070873808 kg
0.5 oz0.014174762 kg
1 oz0.028349523 kg
2 oz0.056699046 kg
3 oz0.085048569 kg
4 oz0.11339809 kg
5 oz0.14174762 kg
6 oz0.17009714 kg
7 oz0.19844666 kg
8 oz0.22679619 kg
9 oz0.25514571 kg
10 oz0.28349523 kg
Ounces to kilograms: 12–1,000 oz
Ounces (oz)Kilograms (kg)
12 oz0.34019428 kg
15 oz0.42524285 kg
20 oz0.56699046 kg
25 oz0.70873808 kg
30 oz0.85048569 kg
40 oz1.1339809 kg
50 oz1.4174762 kg
75 oz2.1262142 kg
100 oz2.8349523 kg
250 oz7.0873808 kg
500 oz14.174762 kg
1,000 oz28.349523 kg

About the units

Ounce (oz)

One sixteenth of a pound: exactly 28.349523125 g. Not to be confused with the fluid ounce (volume) or the troy ounce used for precious metals. One ounce equals 0.02834952313 kilograms (kg).

Kilogram (kg)

The SI base unit of mass, defined since 2019 through the Planck constant. A litre of water has a mass of almost exactly 1 kg.

Frequently asked questions

How many kilograms are in one ounce?

There are 0.02834952313 kilograms in one ounce, and this value is exact by definition.

How do I convert ounces to kilograms?

Multiply the number of ounces by 0.02834952313. For example, 10 oz × 0.02834952313 = 0.2834952313 kg.

How many ounces are in one kilogram?

One kilogram equals 35.27396195 ounces. That is the reverse factor, 1 ÷ 0.02834952313.

What is 10 ounces in kilograms?

10 oz = 0.2834952313 kg.

Is this oz to kg converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

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