Convert weight and mass units — kilograms, pounds, ounces, grams, tons, stones.
| Unit | Name | Value |
|---|---|---|
| g | Gram | 1000 |
| mg | Milligram | 1000000 |
| t | Metric Ton | 0.001 |
| lb | Pound | 2.2046244 |
| oz | Ounce | 35.273991 |
| st | Stone | 0.15747312 |
The Kilogram (kg) and the Ounce (oz) are both units of weight & mass. Converting between them is straightforward using the formula above.
Formula: 1 kg = 35.27399 oz
This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.
| Kilogram (kg) | Ounce (oz) | Real-world context |
|---|---|---|
| 0.1 kg | 3.5273991 oz | |
| 1 kg | 35.2739907 oz | bag of flour / sugar |
| 5 kg | 176.37 oz | bag of potatoes |
| 10 kg | 352.7399 oz | dumbbell pair |
| 100 kg | 3527.3991 oz | large adult / small sofa |
1 kilogram (kg) equals exactly 35.2739907 ounces (oz). Use the formula: kg × 35.2739907 = oz.
To convert kilograms to ounces, multiply your value in kilograms by 35.2739907. For example, 5 kg × 35.2739907 = 176.37 oz.
100 kilograms = 3527.3991 ounces. Calculation: 100 × 35.2739907 = 3527.3991.
To convert ounces back to kilograms, divide by 35.2739907 (or multiply by 0.0283495). Example: 10 oz ÷ 35.2739907 = 0.283495 kg.
Yes. This converter uses the internationally recognised exact conversion factor: 1 kg = 35.2739907 oz. All calculations are performed in your browser with no rounding until display.
10 kilograms = 352.7399 ounces. Simply multiply by 35.2739907.
Converting kilograms to ounces is commonly needed for everyday tasks like cooking recipes, body weight tracking, shopping internationally, or shipping parcels where one system uses kg and another uses oz.
The kilogram (kg) is the SI base unit of mass — one of seven fundamental units in the International System. Equal to exactly 1,000 grams, it is the foundation of weight measurement in science, medicine, engineering, and commerce worldwide. Uniquely among SI base units, the kilogram is named with a metric prefix ("kilo-" = 1,000).
The avoirdupois ounce (oz) equals exactly 28.349523125 grams or 1/16 of an avoirdupois pound. It is widely used in the US and UK for food portions, product packaging, and everyday measurements. Note that the troy ounce (31.1035 g), used for precious metals like gold and silver, is a different and heavier unit than the avoirdupois ounce.
Defined in 1795 by the French Revolutionary government as the mass of one cubic decimetre of distilled water at 4 °C. A platinum prototype (the Kilogramme des Archives) was created in 1799. From 1889 until 2019, the world's mass standard was the International Prototype Kilogram — a platinum-iridium cylinder stored in Sèvres, France. In 2019, the kilogram was redefined in terms of Planck's constant (h = 6.626 070 15 × 10⁻³⁴ J·s), eliminating the need for a physical artifact.
Interesting fact: The IPK and its official copies drifted apart by up to 50 micrograms over 130 years, motivating the 2019 redefinition. The kilogram is the only SI unit whose name starts with a prefix.
The word "ounce" derives from Latin uncia (a twelfth), originally 1/12 of the Roman pound. The avoirdupois ounce developed in medieval England specifically for the wool trade, creating a 16-ounce pound distinct from the Troy 12-ounce pound. The British Imperial system codified the ounce in 1824. The modern exact definition (28.349523125 g) was set by the 1959 International Yard and Pound Agreement.
Interesting fact: A troy ounce (31.1 g) used for gold is heavier than an avoirdupois ounce (28.35 g) used for food — so an "ounce" of gold contains more metal than an "ounce" of flour. A standard large hen's egg weighs approximately 56–63 grams (about 2 oz).