Petagray is 1000000000000000 gray units.
Petagray to Gigagray
Convert Petagray (PGy) to Gigagray (GGy) 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.
Gigagray is 1000000000 gray units.
GGy = PGy × 1e+6
Results update instantly for Petagray to Gigagray conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Petagray = 1e+6 Gigagray
GGy = PGy × 1e+6
PGy = GGy ÷ 1e+6
Conversion table
| 1 PGy | 1e+6 GGy |
| 2 PGy | 2e+6 GGy |
| 5 PGy | 5e+6 GGy |
| 10 PGy | 1e+7 GGy |
| 20 PGy | 2e+7 GGy |
| 50 PGy | 5e+7 GGy |
| 100 PGy | 1e+8 GGy |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Gigagrays are in one Petagray?
One Petagray equals 1e+6 Gigagrays.
How do I convert Petagray to Gigagray?
Multiply the number of Petagrays by 1e+6 to get Gigagrays. To go the other way, multiply Gigagrays by 1e-6 (or divide by 1e+6) to get Petagrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Petagray and Gigagray, so the result shown is mathematically precise (rounded only for display).
When is Petagray to Gigagray 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
Petagray and Gigagray 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+6 Gigagrays (equivalently 1 Gigagray = 1e-6 Petagrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.