Convert Grays to Micrograys
Convert Grays (Gy) to Micrograys (µGy) instantly and accurately.
Conversion Formula
µGy = Gy × 1000000
About Grays
The gray (Gy) is the SI coherent unit of absorbed radiation dose, defined as 1 joule of energy deposited per kilogram of matter. Named after Harold Gray (British radiobiologist, 1905-1965). Used globally in radiotherapy: curative tumour doses 40-80 Gy fractionated; total body irradiation before bone marrow transplant 12-14 Gy. 1 Gy = 1 J/kg = 100 rad.
About Micrograys
The microgray (µGy) equals 10⁻⁶ Gy. Typical organ doses from diagnostic X-ray procedures: chest X-ray ~0.01-0.1 µGy; mammography mean glandular dose ~1-3 mGy (i.e. 1000-3000 µGy); dental bitewing ~1-5 µGy. IAEA Safety Reports quote entrance surface doses in µGy for patient dose surveys. 1 µGy = 10⁻⁶ Gy.
Quick Reference Table
| Grays (Gy) | Micrograys (µGy) |
|---|---|
| 1 Gy | 1000000 µGy |
| 2 Gy | 2000000 µGy |
| 5 Gy | 5000000 µGy |
| 10 Gy | 10000000 µGy |
| 25 Gy | 25000000 µGy |
| 50 Gy | 50000000 µGy |
| 100 Gy | 100000000 µGy |