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Ounces to Kilograms

Convert ounces (oz) to kilograms (kg) — instant and accurate

1 oz = 0.028349523 kg  ·  To convert ounces to kilograms, multiply by 0.028349523.

0.0283495 kg

Ounces to Kilograms Conversion Table

OuncesKilograms
1 oz0.0283495 kg
2 oz0.056699 kg
3 oz0.0850486 kg
4 oz0.113398 kg
5 oz0.141748 kg
6 oz0.170097 kg
7 oz0.198447 kg
8 oz0.226796 kg
9 oz0.255146 kg
10 oz0.283495 kg
15 oz0.425243 kg
20 oz0.56699 kg
25 oz0.708738 kg
30 oz0.850486 kg
40 oz1.13398 kg
50 oz1.41748 kg
75 oz2.12621 kg
100 oz2.83495 kg
250 oz7.08738 kg
500 oz14.1748 kg
1000 oz28.3495 kg

Formula

kilograms = ounces × 0.028349523
ounces = kilograms × 35.274
Example: 5 oz × 0.028349523 = 0.141748 kg

About the Ounces-to-Kilograms Conversion

Converting ounces to kilograms comes up most often when interpreting measurements or specifications across different contexts. Ounces is widely used for food packaging, postal weights, and ingredient measurements in the United States; kilograms is the standard for body weight, groceries, freight, and most engineering work in metric-system countries. The conversion bridges different measurement systems, defined by international agreement. One oz equals 0.028349523 kg.

Real-World Examples

  • 35.274 oz (one kilogram) = 1 kg
  • 16 oz (one pound) = 0.453592 kg
  • 1 oz (one ounce) = 0.0283495 kg
  • 8 oz (half-pound) = 0.226796 kg

Kilograms to Ounces (Reverse)

KilogramsOunces
1 kg35.274 oz
2 kg70.5479 oz
3 kg105.822 oz
4 kg141.096 oz
5 kg176.37 oz
6 kg211.644 oz
7 kg246.918 oz
8 kg282.192 oz
9 kg317.466 oz
10 kg352.74 oz
15 kg529.109 oz
20 kg705.479 oz
25 kg881.849 oz
30 kg1058.22 oz
40 kg1410.96 oz
50 kg1763.7 oz
75 kg2645.55 oz
100 kg3527.4 oz
250 kg8818.49 oz
500 kg17637 oz
1000 kg35274 oz

Frequently Asked Questions

How many kilograms are in a ounce?

1 ounce equals 0.028349523 kilograms.

How do I convert ounces to kilograms?

Multiply the value in ounces by 0.028349523 to get kilograms. For example, 5 oz × 0.028349523 = 0.141748 kg.

How do I convert kilograms back to ounces?

Multiply the value in kilograms by 35.274 to get ounces. Equivalently, divide by 0.028349523.

How many ounces are in a kilogram?

1 kilogram equals 35.274 ounces.

Is the ounces-to-kilograms conversion exact?

The underlying definitions are exact. The decimal representation 0.028349523 is rounded; six significant figures is more than sufficient for everyday use.

About Ounces and Kilograms

The ounce (symbol oz) is a US customary and imperial unit equal to one sixteenth of a pound, or exactly 28.3495231 grams. It is distinct from the troy ounce used for precious metals.

The kilogram (symbol kg) is the SI base unit of mass. Since 2019 it has been defined by the Planck constant rather than by a physical reference cylinder.

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