Petagray is 1000000000000000 gray units.
Petagray to Gray
Convert Petagray (PGy) 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 = PGy × 1e+15
Results update instantly for Petagray to Gray conversions.
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Formula
1 Petagray = 1e+15 Gray
Gy = PGy × 1e+15
PGy = Gy ÷ 1e+15
Conversion table
| 1 PGy | 1e+15 Gy |
| 2 PGy | 2e+15 Gy |
| 5 PGy | 5e+15 Gy |
| 10 PGy | 1e+16 Gy |
| 20 PGy | 2e+16 Gy |
| 50 PGy | 5e+16 Gy |
| 100 PGy | 1e+17 Gy |
Related conversions
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Frequently asked questions
How many Grays are in one Petagray?
One Petagray equals 1e+15 Grays.
How do I convert Petagray to Gray?
Multiply the number of Petagrays by 1e+15 to get Grays. To go the other way, multiply Grays by 1e-15 (or divide by 1e+15) to get Petagrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Petagray and Gray, so the result shown is mathematically precise (rounded only for display).
When is Petagray 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
Petagray and Gray 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 Petagray = 1e+15 Grays (equivalently 1 Gray = 1e-15 Petagrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.