Hectogray is 100 gray units.
Hectogray to Sievert
Convert Hectogray (hGy) to Sievert (Sv) 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.
Sievert is equivalent dose.
Sv = hGy × 100
Results update instantly for Hectogray to Sievert conversions.
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Formula
1 Hectogray = 100 Sievert
Sv = hGy × 100
hGy = Sv ÷ 100
Conversion table
| 1 hGy | 100 Sv |
| 2 hGy | 200 Sv |
| 5 hGy | 500 Sv |
| 10 hGy | 1000 Sv |
| 20 hGy | 2000 Sv |
| 50 hGy | 5000 Sv |
| 100 hGy | 10000 Sv |
Related conversions
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Frequently asked questions
How many Sieverts are in one Hectogray?
One Hectogray equals 100 Sieverts.
How do I convert Hectogray to Sievert?
Multiply the number of Hectograys by 100 to get Sieverts. To go the other way, multiply Sieverts by 0.01 (or divide by 100) to get Hectograys.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Hectogray and Sievert, so the result shown is mathematically precise (rounded only for display).
When is Hectogray to Sievert 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
Hectogray and Sievert are units used in the radiation family of measurements. Hectogray measures absorbed radiation dose (energy deposited per unit mass), while Sievert 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 Hectogray = 100 Sieverts (equivalently 1 Sievert = 0.01 Hectograys), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.