Convert ounce to kilogram

Here you can quickly calculate how many kilogram fit in one ounce.

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Conversion from ounce to kilogram example

Starting value Increment Accuracy

To convert ounce to kilogram, multiply by 0.02835.

1 oz = 0.02835 kg

Example: 1 ounce = 0.02835 kilogram

The everyday avoirdupois ounce is about 28.35 g, but precious metals are priced in troy ounces of about 31.10 g. An 'ounce of gold' is nearly 10% heavier than an ounce of flour. Use troy ounces for gold and silver, the regular ounce for everything else.
The 'just double it' shortcut from kilograms to pounds hides a 10% error: a kilogram is about 2.205 lb, so 80 kg is 176 lb, not 160. Multiply by 2.2 instead: double the number, then add 10%.

Score: 0

77 kilogram equals 4.07e+3 ounce.

Correct answer: 77 kilogram = 2.72e+3 ounce.

20.4 ounce equals 0.578 kilogram.

Correct answer: 20.4 ounce = 0.578 kilogram.

72 ounce equals 3.06 kilogram.

Correct answer: 72 ounce = 2.04 kilogram.

5.1 kilogram equals 108 ounce.

Correct answer: 5.1 kilogram = 180 ounce.