Curie is 3.7e10 becquerels.
Curie to Gray
Convert Curie (Ci) to Gray (Gy) instantly. Free online radiation converter with formulas, tables and examples.
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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.
Gray is absorbed dose in joules per kilogram.
Gy = Ci × 3.7e+10
Results update instantly for Curie to Gray conversions.
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Formula
1 Curie = 3.7e+10 Gray
Gy = Ci × 3.7e+10
Ci = Gy ÷ 3.7e+10
Conversion table
| 1 Ci | 3.7e+10 Gy |
| 2 Ci | 7.4e+10 Gy |
| 5 Ci | 1.85e+11 Gy |
| 10 Ci | 3.7e+11 Gy |
| 20 Ci | 7.4e+11 Gy |
| 50 Ci | 1.85e+12 Gy |
| 100 Ci | 3.7e+12 Gy |
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Frequently asked questions
How many Grays are in one Curie?
One Curie equals 3.7e+10 Grays.
How do I convert Curie to Gray?
Multiply the number of Curies by 3.7e+10 to get Grays. To go the other way, multiply Grays by 2.7027027e-11 (or divide by 3.7e+10) to get Curies.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Curie and Gray, so the result shown is mathematically precise (rounded only for display).
When is Curie to Gray conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
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About this conversion
Curie and Gray are units used in the radiation family of measurements. Curie measures radioactive activity (the rate of radioactive decay), while Gray measures absorbed radiation dose (energy deposited per unit mass). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Curie = 3.7e+10 Grays (equivalently 1 Gray = 2.7027027e-11 Curies), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.