Convert Centigram to Kilogram
Convert centigrams to kilograms instantly. 1 centigram = 1e-5 kilogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Kilogram to Centigram converter for the reverse conversion.
Units explained
Centigram
A centigram (cg) equals 0.00001 kilogram, or 0.01 gram.
From the SI prefix 'centi-' (from Latin 'centum', hundred).
Used in pharmacology and analytical chemistry.
Part of the original metric system of 1795.
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.
Centigram to Kilogram conversion formula
The relationship between centigrams and kilograms:
To convert centigrams to kilograms, multiply the value in centigrams by 1e-5. To reverse, multiply kilograms by 100000.
How to use this converter
Type a value into the calculator. The result in kilograms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Kilogram to Centigram converter for the reverse direction.
Step-by-step: convert centigrams to kilograms
- Write down the value in centigrams (cg).
- Multiply that value by the factor 1e-5.
- The product is the equivalent value in kilograms (kg).
- To reverse, multiply the kilogram value by 100000.
Worked examples
Example 1 — Convert 1 cg to kg:
1 × 1e-5 = 1e-5 kg
Example 2 — Convert 100 cg to kg:
100 × 1e-5 = 0.001 kg
Real-world example — Macro-scale buildup
A million centigrams equals exactly one kilogram — the conversion that bridges microscale features and macroscale objects in microfluidic, biomedical, and semiconductor packaging design.
1000000 cg × 1e-5 = 10 kg
Real-world example — Quarter-meter measurement reference
A 250,000-centigram length equals 0.25 kilograms — useful for comparing supply-chain spec sheets where some lengths are quoted in the smaller unit and some in the larger.
250000 cg × 1e-5 = 2.5 kg
Real-world example — From microscopic to macroscopic
A million centigrams equals exactly one kilogram. This kind of conversion appears in microfluidics, where total channel length is given in kilograms but feature widths are in centigrams.
1000000 cg × 1e-5 = 10 kg
Centigram to Kilogram conversion table
Standard reference values for converting centigrams to kilograms:
| Centigram [cg] | Kilogram [kg] |
|---|---|
| 0.01 | 1e-7 |
| 0.1 | 1e-6 |
| 1 | 1e-5 |
| 2 | 2e-5 |
| 3 | 3e-5 |
| 4 | 4e-5 |
| 5 | 5e-5 |
| 10 | 0.0001 |
| 20 | 0.0002 |
| 30 | 0.0003 |
| 40 | 0.0004 |
| 50 | 0.0005 |
| 100 | 0.001 |
| 500 | 0.005 |
| 1000 | 0.01 |
Frequently asked questions
How many kilograms is 1 centigram?
How do I convert centigrams to kilograms?
How do I convert kilograms back to centigrams?
How many kilograms is 100 centigrams?
Popular weight unit conversions
Convert Centigram to other weight units
Show all Centigram 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 cg = 1e-5 kg) 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.