Centigray is 0.01 gray units.
Centigrays to Micrograys Converter — cGy to uGy
Convert Centigray (cGy) to Microgray (uGy) using the exact conversion factor (1 centigray = 10,000 microgray). See the formula, worked examples, and conversion table.
Centigrays to Micrograys converter
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Microgray is 0.000001 gray units.
Result = input x 0.01 / 1e-6.
Absorbed Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Centigrays to Micrograys
Centigray and Microgray both belong to the radiation-measurement family, though radiation quantities fall into genuinely distinct categories: absorbed dose (gray, rad) measures energy deposited in matter, equivalent dose (sievert, rem) weights that for biological harm, and activity (becquerel, curie) measures how often a radioactive source decays — this page only converts between units of the same kind. Specifically: Centigray is 0.01 gray units, and microgray is 0.000001 gray units.
Formula
micrograys = centigrays × 10000
This factor comes from each unit's defined relationship to the category's base unit: 1 centigray equals 0.01 base units, and 1 microgray equals 0.000001 base units, so dividing one by the other gives the direct centigray-to-microgray factor of 10000.
Simple example
1 cGy × 10000 = 10,000 uGy
1 centigray = 10,000 micrograys.
Real-world example
10 cGy × 10000 = 100,000 uGy
10 centigrays = 100,000 micrograys.
Conversion table
| Centigray (cGy) | Microgray (uGy) |
|---|---|
| 0.001 cGy | 10 uGy |
| 0.01 cGy | 100 uGy |
| 0.1 cGy | 1,000 uGy |
| 1 cGy | 10,000 uGy |
| 10 cGy | 100,000 uGy |
| 100 cGy | 1,000,000 uGy |
Reverse conversion: Microgray to Centigray
1 uGy × 0.0001 = 0.0001 cGy
1 microgray = 0.0001 centigrays.
centigrays = micrograys × 0.0001
For a page dedicated to this direction, see Microgray to Centigray.
Understanding the Centigray (cGy)
Centigray is 0.01 gray units.
Understanding the Microgray (uGy)
Microgray is 0.000001 gray units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograys are in 1 centigray?
1 centigray equals 10,000 micrograys, using the exact defined conversion factor rather than an estimate.
How do I convert centigray to microgray?
Multiply the centigray value by 10000. The converter above does this instantly to whatever precision you set.
How do I convert microgray back to centigray?
Use the reverse factor: 1 microgray equals 0.0001 centigrays. You can also use the swap control in the converter above to flip the direction instantly.
What is a centigray?
Centigray (cGy) is a unit of radiation.
What is a microgray?
Microgray (uGy) is a unit of radiation.
Is the centigray to microgray conversion exact?
Yes. Both centigray and microgray are defined by fixed standards rather than physical artifacts, so the factor of 10000 used above is exact to as many digits as you choose to display.
What's the difference between absorbed dose, equivalent dose, and activity?
Absorbed dose (gray, rad) measures the energy radiation deposits in matter. Equivalent dose (sievert, rem) adjusts that figure for how harmful different types of radiation are to biological tissue. Activity (becquerel, curie) measures how often a radioactive source decays, independent of how much dose a person actually receives from it.