Ounces to Kilograms Converter

What are ounces (oz)?

The ounce is a unit of weight in both the imperial and US customary systems. The abbreviated notation for ounce is oz. One ounce equals approximately 28.3495 grams or 0.0283495 kilograms.

There are 16 ounces in one pound (lb), making the ounce a smaller unit of weight measurement commonly used for measuring lighter items such as food ingredients, postal packages, and precious metals.

What are kilograms (kg)?

The kilogram (kg) serves as a fundamental unit within the metric system for measuring object weight. A single kilogram consists of 1000 grams, positioning it as a higher-level measurement unit compared to grams, which are employed for lighter weights.

The kilogram finds widespread application in physics and engineering disciplines, as well as in everyday usage across nations that utilize the metric system.

How do you convert ounces (oz) to kilograms (kg)?

The Conversion Formula

To convert ounces to kilograms, multiply the number of ounces by 0.0283495:
Formula: Kilograms = Ounces × 0.0283495

Step-by-Step Process

• Take your weight in ounces
• Multiply by 0.0283495
• The result is your weight in kilograms

Examples

• 16 oz to kg:
  16 oz × 0.0283495 = 0.4536 kg
• 32 oz to kg:
  32 oz × 0.0283495 = 0.9072 kg
• 8 oz to kg:
  8 oz × 0.0283495 = 0.2268 kg
• 64 oz to kg:
  64 oz × 0.0283495 = 1.8144 kg
• 100 oz to kg:
  100 oz × 0.0283495 = 2.8350 kg

Quick Reference

• 1 oz = 0.0283495 kg
• 1 kg = 35.274 oz
• 16 oz (1 lb) = 0.453592 kg

Why This Conversion Works

The conversion factor 0.0283495 is the exact number of kilograms in one ounce. This is an internationally recognized standard used in science, commerce, and everyday measurements. Since 16 ounces equal one pound, and one pound equals approximately 0.453592 kilograms, one ounce equals 0.453592 ÷ 16 = 0.0283495 kilograms.

Tips for Mental Math

For quick estimates, remember that:

16 oz ≈ 0.45 kg (approximately half a kilogram)
32 oz ≈ 0.9 kg (approximately one kilogram)
100 oz ≈ 2.8 kg

Since ounces are much smaller than kilograms, the resulting kilogram value will always be much smaller than the ounce value.

Ounces to Kilograms Conversion Table

The conversion of ounces to kilograms for certain values are provided below: