Grays to Milligrays Converter
1 gray = 1,000 milligrays
1 gray equals 1,000 milligrays
How to convert grays to milligrays
Absorbed dose is deposited energy per mass: 1 Gy = 1 J/kg and 1 rad = 0.01 Gy. Converting to sieverts requires radiation weighting information, rather than a universal unit factor.
mGy = Gy × 1000One gray is 1000 milligrays, so a single multiplication converts any value.
10,000 mGy = 10 × 1000Grays to milligrays conversion table
Common values in grays, converted to milligrays.
| Grays (Gy) | Milligrays (mGy) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
About these units
grayGy
The SI unit of absorbed dose: one joule of radiation energy per kilogram.
milligraymGy
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.