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