Microgray is 0.000001 gray units.
Micrograys to Centigrays Converter — uGy to cGy
Convert Microgray (uGy) to Centigray (cGy) using the exact conversion factor (1 microgray = 0.0001 centigray). See the formula, worked examples, and conversion table.
Micrograys to Centigrays 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.
Centigray is 0.01 gray units.
Result = input x 1e-6 / 0.01.
Absorbed Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Micrograys to Centigrays
Microgray and Centigray 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: Microgray is 0.000001 gray units, and centigray is 0.01 gray units.
Formula
centigrays = micrograys × 0.0001
This factor comes from each unit's defined relationship to the category's base unit: 1 microgray equals 0.000001 base units, and 1 centigray equals 0.01 base units, so dividing one by the other gives the direct microgray-to-centigray factor of 0.0001.
Simple example
1 uGy × 0.0001 = 0.0001 cGy
1 microgray = 0.0001 centigrays.
Real-world example
10 uGy × 0.0001 = 0.001 cGy
10 micrograys = 0.001 centigrays.
Conversion table
| Microgray (uGy) | Centigray (cGy) |
|---|---|
| 0.001 uGy | 1e-7 cGy |
| 0.01 uGy | 0.000001 cGy |
| 0.1 uGy | 0.00001 cGy |
| 1 uGy | 0.0001 cGy |
| 10 uGy | 0.001 cGy |
| 100 uGy | 0.01 cGy |
Reverse conversion: Centigray to Microgray
0.0001 cGy × 10000 = 1 uGy
0.0001 centigrays = 1 micrograys.
micrograys = centigrays × 10000
For a page dedicated to this direction, see Centigray to Microgray.
Understanding the Microgray (uGy)
Microgray is 0.000001 gray units.
Understanding the Centigray (cGy)
Centigray is 0.01 gray units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centigrays are in 1 microgray?
1 microgray equals 0.0001 centigrays, using the exact defined conversion factor rather than an estimate.
How do I convert microgray to centigray?
Multiply the microgray value by 0.0001. The converter above does this instantly to whatever precision you set.
How do I convert centigray back to microgray?
Use the reverse factor: 1 centigray equals 10,000 micrograys. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgray?
Microgray (uGy) is a unit of radiation.
What is a centigray?
Centigray (cGy) is a unit of radiation.
Is the microgray to centigray conversion exact?
Yes. Both microgray and centigray are defined by fixed standards rather than physical artifacts, so the factor of 0.0001 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.