Sievert is equivalent dose.
Sievert to Nanosievert
Convert Sievert (Sv) to Nanosievert (nSv) instantly. Free online radiation converter with formulas, tables and examples.
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Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
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Nanosievert is 1e-9 sievert units.
nSv = Sv × 1e+9
Results update instantly for Sievert to Nanosievert conversions.
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Formula
1 Sievert = 1e+9 Nanosievert
nSv = Sv × 1e+9
Sv = nSv ÷ 1e+9
Conversion table
| 1 Sv | 1e+9 nSv |
| 2 Sv | 2e+9 nSv |
| 5 Sv | 5e+9 nSv |
| 10 Sv | 1e+10 nSv |
| 20 Sv | 2e+10 nSv |
| 50 Sv | 5e+10 nSv |
| 100 Sv | 1e+11 nSv |
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Frequently asked questions
How many Nanosieverts are in one Sievert?
One Sievert equals 1e+9 Nanosieverts.
How do I convert Sievert to Nanosievert?
Multiply the number of Sieverts by 1e+9 to get Nanosieverts. To go the other way, multiply Nanosieverts by 1e-9 (or divide by 1e+9) to get Sieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Sievert and Nanosievert, so the result shown is mathematically precise (rounded only for display).
When is Sievert to Nanosievert 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
Sievert and Nanosievert are units used in the radiation family of measurements. Both units measure equivalent radiation dose (biological risk-weighted dose). This converter uses the precise relationship 1 Sievert = 1e+9 Nanosieverts (equivalently 1 Nanosievert = 1e-9 Sieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.