Milligram to Centigram Converter

Mass Converter

26 units available

Decimals:

From

To

0.1

1 mg = 0.1 cg

Formula:

cg = mg × 0.1

With your value: 1 mg = 0.1 cg

How big is that?

Everyday references on a logarithmic scale, all expressed in milligram so you can sanity-check the result.

Your value1.00 mg

Paperclip (1.0e+3× your value)1.00e+3 mg

AA battery (2.4e+4× your value)2.40e+4 mg

Can of soda (3.9e+5× your value)3.90e+5 mg

Bag of sugar (1.0e+6× your value)1.00e+6 mg

House cat (4.5e+6× your value)4.50e+6 mg

Other Milligram to Centigram conversions

2 mg to cg 3 mg to cg 4 mg to cg 5 mg to cg 6 mg to cg 7 mg to cg 8 mg to cg

Milligram to Centigram Conversion Table

Milligram (mg)	Centigram (cg)
0.5	0.05
1	0.1
2	0.2
5	0.5
10	1
15	1.5
20	2
25	2.5
50	5
100	10
250	25
500	50
1000	100

Centigram to Milligram Conversion Table

Centigram (cg)	Milligram (mg)
0.5	5
1	10
2	20
5	50
10	100
15	150
20	200
25	250
50	500
100	1,000
250	2,500
500	5,000
1000	10,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Milligram (mg)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Centigram (cg)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Milligram to Centigram

To convert from Milligram (mg) to Centigram (cg), multiply the value by 0.1.

Formula: cg = mg × 0.1

Reverse: mg = cg × 10

Step-by-Step Example

Start with your value in Milligram. For example: 5 mg
Multiply by the conversion factor: 5 x 0.1
The result is: 0.5 cg

About Milligram

The milligram equals one thousandth of a gram and is the standard unit for drug dosage and nutrient quantities.

Common uses: medication dosage, nutrition labels, laboratory work.

About Centigram

The centigram (cg) is a unit of mass and weight. One centigram equals 1.000000 × 10^-5 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass calculations, engineering and science, education.

Frequently Asked Questions

How many Centigram are in 1 Milligram?

There are exactly 0.1 Centigram in 1 Milligram. This means the conversion factor from Milligram to Centigram is 0.1.

What is the formula to convert Milligram to Centigram?

The formula to convert Milligram to Centigram is: cg = mg × 0.1. For example, to convert 10 Milligram to Centigram, you would multiply 10 by 0.1.

What is a Milligram?