Home/Weight & Mass/Ounce to Kilogram

Ounce to Kilogram

Professional oz to kg conversion.

Ounce
A small imperial mass unit, equal to 1/16th of a pound.
Kilogram
The SI base unit of mass, currently defined by the Planck constant.
0.02834952
Unit
  • Electron Mass (Rest)
    me
  • Muon Mass
    mμ
  • Dalton
    Da
  • Atomic Mass Unit
    u
  • Proton Mass
    mp
  • Neutron Mass
    mn
  • Deuteron Mass
    md
  • Attogram
    ag
  • Femtogram
    fg
  • Picogram
    pg
  • Nanogram
    ng
  • Gamma
    γ
  • Microgram
    µg
  • Planck Mass
    mP
  • Milligram
    mg
  • Centigram
    cg
  • Lepton (Biblical Roman)
    lepton
  • Quadrans (Biblical Roman)
    quadrans
  • Grain
    gr
  • Decigram
    dg
  • Carat
    ct
  • Assarion (Biblical Roman)
    assarion
  • Gerah (Biblical Hebrew)
    gerah
  • Gram
    g
  • Scruple (Apothecary)
    s.ap
  • Pennyweight
    pwt
  • Drachma (Biblical Greek)
    drachma
  • Denarius (Biblical Roman)
    denarius
  • Bekan (Biblical Hebrew)
    bekan
  • Didrachma (Biblical Greek)
    didrachma
  • Dekagram
    dag
  • Shekel (Biblical Hebrew)
    shekel
  • Tetradrachma (Biblical Greek)
    tetradrachma
  • Poundal
    pdl
  • Ounce
    oz
  • Ton (Assay) (US)
    AT (US)
  • Ton (Assay) (UK)
    AT (UK)
  • Hectogram
    hg
  • Mina (Biblical Greek)
    mina
  • Pound (Troy/Apothecary)
    lb t
  • Pound
    lb
  • Mina (Biblical Hebrew)
    mina
  • Kilogram
    kg
  • Stone (US)
    st (US)
  • Stone
    st
  • Kilogram-force·second²/meter
    kgf·s²/m
  • Quarter (US)
    qr (US)
  • Quarter (UK)
    qr (UK)
  • Pound-force·second²/foot
    lbf·s²/ft
  • Slug
    slug
  • Talent (Biblical Greek)
    talent
  • Talent (Biblical Hebrew)
    talent
  • Hundredweight (US)
    cwt (US)
  • Hundredweight (UK)
    cwt (UK)
  • Quintal (Metric)
    cwt
  • Kilopound
    kip
  • Kip
    kip
  • Ton (Short)
    ton (US)
  • US Ton
    ton (US)
  • Megagram
    Mg
  • Metric Tonne
    t
  • Ton (Metric)
    t
  • Tonne
    t
  • Long Ton
    long ton
  • Ton (Long)
    ton (UK)
  • UK Ton (Imperial)
    ton (UK)
  • Gigagram
    Gg
  • Kiloton (Metric)
    kt
  • Teragram
    Tg
  • Petagram
    Pg
  • Exagram
    Eg
  • Earth's Mass
    M⊕
  • Sun's Mass
    M☉
Unit
  • Electron Mass (Rest)
    me
  • Muon Mass
    mμ
  • Dalton
    Da
  • Atomic Mass Unit
    u
  • Proton Mass
    mp
  • Neutron Mass
    mn
  • Deuteron Mass
    md
  • Attogram
    ag
  • Femtogram
    fg
  • Picogram
    pg
  • Nanogram
    ng
  • Gamma
    γ
  • Microgram
    µg
  • Planck Mass
    mP
  • Milligram
    mg
  • Centigram
    cg
  • Lepton (Biblical Roman)
    lepton
  • Quadrans (Biblical Roman)
    quadrans
  • Grain
    gr
  • Decigram
    dg
  • Carat
    ct
  • Assarion (Biblical Roman)
    assarion
  • Gerah (Biblical Hebrew)
    gerah
  • Gram
    g
  • Scruple (Apothecary)
    s.ap
  • Pennyweight
    pwt
  • Drachma (Biblical Greek)
    drachma
  • Denarius (Biblical Roman)
    denarius
  • Bekan (Biblical Hebrew)
    bekan
  • Didrachma (Biblical Greek)
    didrachma
  • Dekagram
    dag
  • Shekel (Biblical Hebrew)
    shekel
  • Tetradrachma (Biblical Greek)
    tetradrachma
  • Poundal
    pdl
  • Ounce
    oz
  • Ton (Assay) (US)
    AT (US)
  • Ton (Assay) (UK)
    AT (UK)
  • Hectogram
    hg
  • Mina (Biblical Greek)
    mina
  • Pound (Troy/Apothecary)
    lb t
  • Pound
    lb
  • Mina (Biblical Hebrew)
    mina
  • Kilogram
    kg
  • Stone (US)
    st (US)
  • Stone
    st
  • Kilogram-force·second²/meter
    kgf·s²/m
  • Quarter (US)
    qr (US)
  • Quarter (UK)
    qr (UK)
  • Pound-force·second²/foot
    lbf·s²/ft
  • Slug
    slug
  • Talent (Biblical Greek)
    talent
  • Talent (Biblical Hebrew)
    talent
  • Hundredweight (US)
    cwt (US)
  • Hundredweight (UK)
    cwt (UK)
  • Quintal (Metric)
    cwt
  • Kilopound
    kip
  • Kip
    kip
  • Ton (Short)
    ton (US)
  • US Ton
    ton (US)
  • Megagram
    Mg
  • Metric Tonne
    t
  • Ton (Metric)
    t
  • Tonne
    t
  • Long Ton
    long ton
  • Ton (Long)
    ton (UK)
  • UK Ton (Imperial)
    ton (UK)
  • Gigagram
    Gg
  • Kiloton (Metric)
    kt
  • Teragram
    Tg
  • Petagram
    Pg
  • Exagram
    Eg
  • Earth's Mass
    M⊕
  • Sun's Mass
    M☉
Precision: 8 decimal places

Logic & Formula

To convert Ounce to Kilogram, we use the specific conversion ratio for this category. 1 oz is equal to 0.02834952 kg.

Value in kg = (Value in oz * 0.02834952) / 1

Unit Definitions

Ounce

A small imperial mass unit, equal to 1/16th of a pound.

Kilogram

The SI base unit of mass, currently defined by the Planck constant.

Verified 2026 Standards
Industrial Precision

How to convert Ounce to Kilogram?

Enter the value in Ounce, choose the target unit Kilogram, and the result updates instantly. This page also includes the conversion formula and a quick reference table for verification.

Formula: Value in kg = Value in oz × 0.02834952

Common Conversions Table

Value (oz)Result (kg)
10.02834952
100.28349523
250.70873808
501.41747615
1002.83495231
100028.3495231

FAQ

What is the conversion formula from oz to kg?
Value in kg = Value in oz × 0.02834952
What is the smallest unit in Weight & Mass?
The smallest unit (as defined on this site) is: Electron Mass (Rest) (me). For higher precision, convert using a smaller unit first.
Are the results accurate?
Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.

About this conversion

This page converts Ounce to Kilogram using verified ratios and includes tables, examples, and FAQs for quick verification.

Ounce
A small imperial mass unit, equal to 1/16th of a pound.
Kilogram
The SI base unit of mass, currently defined by the Planck constant.

Formula and precision

Value in kg = Value in oz × 0.02834952
1 oz is equal to 0.02834952 kg.
Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.
  • Use smaller units for higher precision, then convert back if needed.
  • Temperature and fuel categories can’t be reduced to one constant multiplier.
  • Symbols vary by region (US/UK gallons, metric vs. imperial abbreviations).
  • For engineering work, validate with a second reference and keep unit symbols.

Quick examples

Example: 1 oz = 0.02834952 kg.

Value (oz)Result (kg)
10.02834952
12.50.35436904
501.41747615
1002.83495231

Common mistakes and definitions

Weight and mass are often used interchangeably in everyday language. For technical work, keep definitions and symbols consistent and round only at the end.
  • Rounding too early (convert first, then round at the end).
  • Mixing similar-looking symbols (for example, “m” vs “mm”, or “b” vs “B”).
  • Copying values without the unit symbol, which makes validation harder.

Common Conversions Table

Ounce (oz)Kilogram (kg)
10.02834952
20.05669905
30.08504857
50.14174762
100.28349523
250.70873808
501.41747615
1002.83495231
2507.08738077
50014.17476155
100028.3495231

Category facts

Smallest unit (on this site)
Electron Mass (Rest) (me)
Largest unit (on this site)
Sun's Mass (M☉)

FAQ

How to convert Ounce to Kilogram?
Enter the value in Ounce, choose the target unit Kilogram, and the result updates instantly. This page also includes the conversion formula and a quick reference table for verification.
What is the conversion formula from oz to kg?
Value in kg = Value in oz × 0.02834952
What is the smallest unit in Weight & Mass?
The smallest unit (as defined on this site) is: Electron Mass (Rest) (me). For higher precision, convert using a smaller unit first.
Why can results differ between websites?
Different standards, rounding rules, and unit definitions can change results. This page shows the formula used for transparency.
Are the results accurate?
Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.

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Mass and weight conversions from micrograms to metric tonnes. Precision is the cornerstone of our platform. We utilize 15-digit floating-point arithmetic to ensure results meet 2026 industrial and academic verification standards. Looking for other types of calculations? Explore our Main Dashboard for 100,000+ precision permutations.