Convert Microgray to Gray
Convert micrograys to grays by entering a value below.
How to Convert Micrograys to Grays
The microgray and gray are both units of radiation dose. By definition, 1 gray equals exactly 1000000 micrograys. This means to convert micrograys to grays, you divide by 1000000.
Formula
Step-by-Step Example
Convert 5 μGy to grays:
We need to convert micrograys to grays
Since 1 Gy = 1000000 μGy, divide by 1000000
5 ÷ 1000000 = 5e-6
5 μGy = 5e-6 Gy
Microgray to Gray Conversion Table
Quick reference table for common microgray to gray conversions. Click any value for detailed calculation.
| Micrograys (μGy) | Grays (Gy) |
|---|---|
| 0.1 μGy | 1e-7 Gy |
| 0.5 μGy | 5e-7 Gy |
| 1 μGy | 1e-6 Gy |
| 2 μGy | 2e-6 Gy |
| 5 μGy | 5e-6 Gy |
| 10 μGy | 1e-5 Gy |
| 25 μGy | 2.5e-5 Gy |
| 50 μGy | 5e-5 Gy |
| 100 μGy | 1e-4 Gy |
About These Units
Microgray (μGy)
A microgray (μGy) equals 0.001 mGy or 0.1 mrad. Chest X-ray: ~20 μGy. Panoramic dental X-ray: 10-20 μGy. Used for specifying doses from diagnostic imaging with minimal exposure. One gray = one million micrograys.
Gray (Gy)
The gray (Gy) is the SI unit of absorbed dose: energy deposited per unit mass (1 Gy = 1 J/kg). Named after Louis Harold Gray. For gamma/X-rays and beta particles, 1 Gy ≈ 1 Sv (quality factor Q=1). Radiation therapy total dose: 40-80 Gy.
Frequently Asked Questions
How do I convert micrograys to grays?
To convert micrograys to grays, divide the value by 1000000. For example, 10 μGy = 1e-5 Gy.
How many grays are in 1 microgray?
1 microgray equals 1e-6 grays.
What is the formula for micrograys to grays?
The formula is: Gy = μGy ÷ 1000000.