Picogray is 1e-12 gray units.
Picogray to Gigasievert
Convert Picogray (pGy) to Gigasievert (GSv) 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.
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Some unit families need one extra value for a physically accurate result.
Gigasievert is 1000000000 sievert units.
GSv = pGy × 1e-21
Results update instantly for Picogray to Gigasievert conversions.
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Formula
1 Picogray = 1e-21 Gigasievert
GSv = pGy × 1e-21
pGy = GSv ÷ 1e-21
Conversion table
| 1 pGy | 1e-21 GSv |
| 2 pGy | 2e-21 GSv |
| 5 pGy | 5e-21 GSv |
| 10 pGy | 1e-20 GSv |
| 20 pGy | 2e-20 GSv |
| 50 pGy | 5e-20 GSv |
| 100 pGy | 1e-19 GSv |
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Frequently asked questions
How many Gigasieverts are in one Picogray?
One Picogray equals 1e-21 Gigasieverts.
How do I convert Picogray to Gigasievert?
Multiply the number of Picograys by 1e-21 to get Gigasieverts. To go the other way, multiply Gigasieverts by 1e+21 (or divide by 1e-21) to get Picograys.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Picogray and Gigasievert, so the result shown is mathematically precise (rounded only for display).
When is Picogray to Gigasievert 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
Picogray and Gigasievert are units used in the radiation family of measurements. Picogray measures absorbed radiation dose (energy deposited per unit mass), while Gigasievert measures equivalent radiation dose (biological risk-weighted dose). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Picogray = 1e-21 Gigasieverts (equivalently 1 Gigasievert = 1e+21 Picograys), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.