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Ounces to Kilograms Converter

Convert ounces to kilograms instantly with our free weight converter. 1 ounce = 0.02835 kg — type any value below and the result updates live.

Ounces → Kilograms⇄ Swap: Kilograms → Ounces
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Ounces to Kilograms Formula

Kilograms = Ounces × 0.02835 (Ounces = Kilograms × 35.273962)

Weight conversion spans metric mass (milligrams, grams, kilograms, metric tons) and the US customary units (ounces, pounds, stone) used for body weight, groceries, and shipping.

Ounces to Kilograms Conversion Table

OuncesKilograms
1 oz=0.02835 kg
2 oz=0.056699 kg
5 oz=0.141748 kg
10 oz=0.283495 kg
25 oz=0.708738 kg
50 oz=1.417476 kg
100 oz=2.834952 kg

About Ounces and Kilograms

An avoirdupois ounce is exactly 28.349523125 grams (1/16 of a pound). The US unit for packaged food and postal weights.

The kilogram is the SI base unit of mass — roughly the mass of a liter of water. The world's standard for body weight and commerce.

Frequently Asked Questions

How many kilograms are in one ounce?
One ounce equals 0.02835 kilograms. Multiply any ounces value by 0.02835 to convert it.
What is the formula for converting ounces to kilograms?
Kilograms = Ounces × 0.02835. To reverse it: ounces = kilograms × 35.273962.
How do I convert kilograms back to ounces?
Divide the kilograms value by 0.02835 (equivalently, multiply by 35.273962). Or use our kilograms-to-ounces converter going the other way.
Which is bigger, a ounce or a kilogram?
A kilogram is bigger — it takes 35.273962 ounces to make one kilogram.