Megagray is 1000000 gray units.
Megagrays to Decagrays Converter — MGy to daGy
Convert Megagray (MGy) to Decagray (daGy) using the exact conversion factor (1 megagray = 100,000 decagray). See the formula, worked examples, and conversion table.
Megagrays to Decagrays 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.
Decagray is 10 gray units.
Result = input x 1e+6 / 10.
Absorbed Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Megagrays to Decagrays
Megagray and Decagray 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: Megagray is 1000000 gray units, and decagray is 10 gray units.
Formula
decagrays = megagrays × 100000
This factor comes from each unit's defined relationship to the category's base unit: 1 megagray equals 1000000 base units, and 1 decagray equals 10 base units, so dividing one by the other gives the direct megagray-to-decagray factor of 100000.
Simple example
1 MGy × 100000 = 100,000 daGy
1 megagray = 100,000 decagrays.
Real-world example
10 MGy × 100000 = 1,000,000 daGy
10 megagrays = 1,000,000 decagrays.
Conversion table
| Megagray (MGy) | Decagray (daGy) |
|---|---|
| 0.001 MGy | 100 daGy |
| 0.01 MGy | 1,000 daGy |
| 0.1 MGy | 10,000 daGy |
| 1 MGy | 100,000 daGy |
| 10 MGy | 1,000,000 daGy |
| 100 MGy | 10,000,000 daGy |
Reverse conversion: Decagray to Megagray
1 daGy × 0.00001 = 0.00001 MGy
1 decagray = 0.00001 megagrays.
megagrays = decagrays × 0.00001
For a page dedicated to this direction, see Decagray to Megagray.
Understanding the Megagray (MGy)
Megagray is 1000000 gray units.
Understanding the Decagray (daGy)
Decagray is 10 gray units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decagrays are in 1 megagray?
1 megagray equals 100,000 decagrays, using the exact defined conversion factor rather than an estimate.
How do I convert megagray to decagray?
Multiply the megagray value by 100000. The converter above does this instantly to whatever precision you set.
How do I convert decagray back to megagray?
Use the reverse factor: 1 decagray equals 0.00001 megagrays. You can also use the swap control in the converter above to flip the direction instantly.
What is a megagray?
Megagray (MGy) is a unit of radiation.
What is a decagray?
Decagray (daGy) is a unit of radiation.
Is the megagray to decagray conversion exact?
Yes. Both megagray and decagray are defined by fixed standards rather than physical artifacts, so the factor of 100000 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.