Rad is 0.01 gray.
Rad to Sievert
Convert Rad (rad) 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 = rad × 0.01
Results update instantly for Rad to Sievert conversions.
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Formula
1 Rad = 0.01 Sievert
Sv = rad × 0.01
rad = Sv ÷ 0.01
Conversion table
| 1 rad | 0.01 Sv |
| 2 rad | 0.02 Sv |
| 5 rad | 0.05 Sv |
| 10 rad | 0.1 Sv |
| 20 rad | 0.2 Sv |
| 50 rad | 0.5 Sv |
| 100 rad | 1 Sv |
Related conversions
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Frequently asked questions
How many Sieverts are in one Rad?
One Rad equals 0.01 Sieverts.
How do I convert Rad to Sievert?
Multiply the number of Rads by 0.01 to get Sieverts. To go the other way, multiply Sieverts by 100 (or divide by 0.01) to get Rads.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Rad and Sievert, so the result shown is mathematically precise (rounded only for display).
When is Rad 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
Rad and Sievert are units used in the radiation family of measurements. Rad 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 Rad = 0.01 Sieverts (equivalently 1 Sievert = 100 Rads), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.