Convert Kilogram to Ounce
Convert kilograms to ounces instantly. 1 kilogram = 35.2739619807 ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ounce to Kilogram converter for the reverse conversion.
Units explained
Kilogram
The kilogram (kg) is the SI base unit of mass, defined by fixing the Planck constant h at 6.62607015E-34 J s.
From Greek 'khilioi' (thousand) plus 'gramma' (small weight).
The worldwide base unit of mass in science, commerce, and everyday life.
Adopted in 1795; redefined through the Planck constant on 20 May 2019.
Ounce
The (avoirdupois) ounce (oz) equals one-sixteenth of a pound, about 28.35 grams.
From Latin 'uncia', meaning a twelfth part.
US food portions, postal weights, and boxing weight classes.
Standardized as 1/16 of the international pound from 1959.
Kilogram to Ounce conversion formula
The relationship between kilograms and ounces:
To convert kilograms to ounces, multiply the value in kilograms by 35.2739619807. To reverse, multiply ounces by 0.0283495231.
How to use this converter
Type a value into the calculator. The result in ounces updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ounce to Kilogram converter for the reverse direction.
Step-by-step: convert kilograms to ounces
- Write down the value in kilograms (kg).
- Multiply that value by the factor 35.2739619807.
- The product is the equivalent value in ounces (oz).
- To reverse, multiply the ounce value by 0.0283495231.
Worked examples
Example 1 — Convert 1 kg to oz:
1 × 35.2739619807 = 35.2739619807 oz
Example 2 — Convert 100 kg to oz:
100 × 35.2739619807 = 3527.3961980687 oz
Real-world example — Pet and accessory dimensions
A 3-kilogram dog leash equals a tidy round value in ounces. Pet-supply shopping frequently mixes the two units across product specifications.
3 kg × 35.2739619807 = 105.8218859421 oz
Real-world example — Fabric and tailoring
One kilogram of fabric converts to a value in ounces commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 kg × 35.2739619807 = 35.2739619807 oz
Real-world example — Body height conversion (reverse direction)
You measure 1.75 kilograms tall and need to fill in a gym membership form or medical record that asks for height in ounces. This is the most-used everyday length conversion in metric-using countries.
1.75 kg × 35.2739619807 = 61.7294334662 oz
Kilogram to Ounce conversion table
Standard reference values for converting kilograms to ounces:
| Kilogram [kg] | Ounce [oz] |
|---|---|
| 0.01 | 0.3527396198 |
| 0.1 | 3.5273961981 |
| 1 | 35.2739619807 |
| 2 | 70.5479239614 |
| 3 | 105.8218859421 |
| 4 | 141.0958479227 |
| 5 | 176.3698099034 |
| 10 | 352.7396198069 |
| 20 | 705.4792396137 |
| 30 | 1058.2188594206 |
| 40 | 1410.9584792275 |
| 50 | 1763.6980990343 |
| 100 | 3527.3961980687 |
| 500 | 17636.9809903434 |
| 1000 | 35273.9619806867 |
Frequently asked questions
How many ounces is 1 kilogram?
How do I convert kilograms to ounces?
How do I convert ounces back to kilograms?
How many ounces is 100 kilograms?
Popular weight unit conversions
Convert Kilogram to other weight units
Show all Kilogram conversions
Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 kg = 35.2739619807 oz) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.