Convert Micrograys to Centigrays (µGy to cGy)
1 microgray (µGy) = 0.0001 centigrays (cGy). 1 cGy = 10000 µGy. Example: 15 µGy = 15 × 0.0001 = 0.0015 cGy.
Also searched as micrograys to cGy, micrograys in cGy, micrograys into centigrays, µGy to cGy, µGy in centigrays, µGy into centigray, microgray to centigray, µGy to centigrays converter and how many centigrays in a microgray.
1 µGy = 0.0001 cGy
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microgray to centigray converter to paste a column from Excel.
How to Convert Microgray to Centigray
- 1 µGy = 0.0001 cGy
- 1 cGy = 10000 µGy
- Example: convert 15 µGy to cGy: 15 µGy = 15 × 0.0001 cGy = 0.0015 cGy
Formula
cGy = µGy ÷ 10000
Derivation from SI units:
- 1 µGy = 10⁻⁶ Gy.
- 1 cGy = 0.01 Gy = 1 rad.
- 1 µGy = 0.000001 Gy ÷ 0.01 Gy per cGy = 0.0001 cGy
Both units are defined exactly, so the factor is exact. Microgray definition: microgray; Centigray definition: centigray.
Worked examples
- A reading of 0.5 µGy converts to 0.00005 cGy.
0.5 µGy × 0.0001 = 0.00005 cGy - A value of 5 µGy is 0.0005 cGy.
5 µGy × 0.0001 = 0.0005 cGy
Microgray to Centigray conversion table
| Micrograys (µGy) | Centigrays (cGy) |
|---|---|
| 0.001 µGy | 1 × 10⁻⁷ cGy |
| 0.01 µGy | 0.000001 cGy |
| 0.1 µGy | 0.00001 cGy |
| 0.5 µGy | 0.00005 cGy |
| 1 µGy | 0.0001 cGy |
| 2 µGy | 0.0002 cGy |
| 5 µGy | 0.0005 cGy |
| 10 µGy | 0.001 cGy |
| 50 µGy | 0.005 cGy |
| 100 µGy | 0.01 cGy |
Where it's used
Micrograys are used for dental and chest X-ray air kerma, while centigrays appear in radiotherapy plans (e.g. 200 cGy per fraction). Both measure absorbed dose of ionising radiation, so the conversion is a fixed factor.
Microgray to other absorbed dose units
| Conversion | 1 µGy equals |
|---|---|
| microgray to centigray | 0.0001 cGy |
| microgray to gray | 0.000001 Gy |
| microgray to milligray | 0.001 mGy |
| microgray to rad | 0.0001 rad |
| microgray to kilogray | 1 × 10⁻⁹ kGy |
| microgray to millirad | 0.1 mrad |
Frequently asked questions
How many centigrays are in 1 microgray?
1 µGy = 0.0001 cGy.
How do I convert micrograys to centigrays?
Multiply the value in µGy by 0.0001, or divide it by 10000. For example, 15 µGy × 0.0001 = 0.0015 cGy.
Is the µGy to cGy conversion exact?
Yes. Both units are defined exactly, and 1 µGy is exactly 0.0001 cGy.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Micrograys to Centigrays (µGy to cGy). Retrieved October 25, 2026, from https://scientificconverters.com/absorbed-dose/micrograys-to-centigrays/
IEEE
Scientific Converters, "Convert Micrograys to Centigrays (µGy to cGy)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/absorbed-dose/micrograys-to-centigrays/