Exagray is 1000000000000000000 gray units.
Exagray to Rontogray
Convert Exagray (EGy) to Rontogray (rGy) instantly. Free online radiation converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Rontogray is 1e-27 gray units.
rGy = EGy × 1e+45
Results update instantly for Exagray to Rontogray conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Exagray = 1e+45 Rontogray
rGy = EGy × 1e+45
EGy = rGy ÷ 1e+45
Conversion table
| 1 EGy | 1e+45 rGy |
| 2 EGy | 2e+45 rGy |
| 5 EGy | 5e+45 rGy |
| 10 EGy | 1e+46 rGy |
| 20 EGy | 2e+46 rGy |
| 50 EGy | 5e+46 rGy |
| 100 EGy | 1e+47 rGy |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Rontograys are in one Exagray?
One Exagray equals 1e+45 Rontograys.
How do I convert Exagray to Rontogray?
Multiply the number of Exagrays by 1e+45 to get Rontograys. To go the other way, multiply Rontograys by 1e-45 (or divide by 1e+45) to get Exagrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Exagray and Rontogray, so the result shown is mathematically precise (rounded only for display).
When is Exagray to Rontogray conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
Exagray and Rontogray are units used in the radiation family of measurements. Both units measure absorbed radiation dose (energy deposited per unit mass). This converter uses the precise relationship 1 Exagray = 1e+45 Rontograys (equivalently 1 Rontogray = 1e-45 Exagrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.