Skip to content

Ounces to Kilograms Converter

Convert ounces to kilograms and kilograms to ounces instantly. Bidirectional weight converter with formula and common values.

oz

Kilograms

1.8144

kg

64 oz = 1.8144 kg

kg = oz × 0.0283495

Ounces to Kilograms: 1 oz equals 0.028349 kg. To convert ounces to kilograms, multiply by 0.028349 (kg = oz × 0.0283495). For example, 10 oz = 0.283495 kg.

How to Convert Ounces to Kilograms

To convert from ounces to kilograms, multiply the value by 0.028349. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Ounces to Kilograms: kg = oz × 0.0283495
  • Kilograms to Ounces: oz = kg ÷ 0.0283495

Ounces to Kilograms Conversion Chart

Ounces (oz)Kilograms (kg)
0.10.002835
0.250.007087
0.50.014175
10.028349
20.056699
30.085048
50.141747
100.283495
200.56699
250.708738
501.417475
1002.83495
2507.087375
100028.3495

Understanding the Units

What is an Ounce?

The avoirdupois ounce equals exactly 28.349523125 grams, or 1/16 of a pound.

Common contexts: cooking (US), postage, precious metals.

What is a Kilogram?

The kilogram is the SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.

From the French kilogramme adopted in 1795; previously defined by the International Prototype Kilogram in Paris until 2019.

Common contexts: science, commerce, health.

Real-World Reference Points

Item Ounces (oz) Kilograms (kg)
A slice of bread10.0283
A AA battery0.850.0241

Related

Pounds to Kilograms Converter

Convert pounds to kilograms and kilograms to pounds with precise conversion factor.

Ounces to Grams Converter

Convert ounces to grams and grams to ounces instantly.

Stones to Kilograms Converter

Convert stones to kilograms and kilograms to stones. Common in UK weight measurement.

Tons to Metric Tons Converter

Convert US short tons to metric tonnes and metric tonnes to short tons.

Grams to Ounces Converter

Convert grams to ounces and ounces to grams instantly.

Kilograms to Pounds Converter

Convert kilograms to pounds and pounds to kilograms instantly.

FAQ

How many ounces in a kilogram?

One kilogram equals approximately 35.274 ounces. Conversely, one ounce equals about 0.0283495 kg.

How do I convert ounces to kilograms?

Multiply the ounce value by 0.0283495 or divide by 35.274. For example, 64 oz = 1.814 kg.

When would I need this conversion?

Useful for converting product weights, shipping parcels internationally, or adapting recipes between US and metric measurements.

Are ounces used anywhere outside the US?

The ounce is occasionally used in the UK and Canada for some food items, but kilograms dominate in everyday use outside the US.

How many kilograms are in 1 ounc?

1 oz equals 0.028349 kg.

How do you convert ounces to kilograms?

Multiply the ounc value by 0.028349. Formula: kg = oz × 0.0283495.

How many kilograms are in 5 ounces?

5 oz = 0.141747 kg.

How do you convert kilograms back to ounces?

Use the inverse formula: oz = kg ÷ 0.0283495. For example, 1 kg = 35.273991 oz.

What is the difference between Ounc and Kilogram?

The avoirdupois ounce equals exactly 28.349523125 grams, or 1/16 of a pound. The kilogram is the SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.