Radiation Dose
GytoμGy
Convert grays (Gy) to micrograys (μGy).
Factor1 Gy = 1000000 μGy
Converter
Gy
Accepts numbers or expressions, e.g. 150 + 14.7
Result
μGy
Rendered to 6 significant figures.
Formula
Formula
μGy = Gy × 1000000
Multiply any value in grays by 1000000 to obtain the value in micrograys.
Worked example
Convert 1 Gy to μGy.
- 01Start with 1 Gy.
- 02Multiply by the conversion factor: 1 × 1000000 = 1.00000e+6 μGy.
Result1 Gy = 1.00000e+6 μGy
Conversion table
| Gy | μGy |
|---|---|
| 1 | 1.0000e+6 |
| 2 | 2.0000e+6 |
| 5 | 5.0000e+6 |
| 10 | 1e+7 |
| 20 | 2e+7 |
| 50 | 5e+7 |
| 100 | 1e+8 |
| 200 | 2e+8 |
| 500 | 5e+8 |
| 1000 | 1e+9 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Gy to μGy?
1 Gy equals 1000000 μGy. To convert, multiply the value in grays by 1000000.
How do I convert 1 Gy to μGy?
1 Gy = 1.00000e+6 μGy. For any value, multiply by 1000000.
How do I convert μGy back to Gy?
Divide by the same factor — or equivalently, multiply by 1e-6. So 1 μGy = 1e-6 Gy.
When would I need to convert gray to microgray?
Radiation absorbed-dose conversions between Gy and μGy are used in radiological protection, medical physics, and nuclear-industry health physics. Gray (Gy) is the SI standard; rad remains common in older US health-physics documentation (1 Gy = 100 rad).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).