Convert Nanosieverts to Sieverts (nSv to Sv)
1 nanosievert (nSv) = 1 × 10⁻⁹ sieverts (Sv). 1 Sv = 1000000000 nSv. Example: 15 nSv = 15 × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ Sv.
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1 nSv = 1e-9 Sv
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk nanosievert to sievert converter to paste a column from Excel.
How to Convert Nanosievert to Sievert
- 1 nSv = 1 × 10⁻⁹ Sv
- 1 Sv = 1000000000 nSv
- Example: convert 15 nSv to Sv: 15 nSv = 15 × 1 × 10⁻⁹ Sv = 1.5 × 10⁻⁸ Sv
Formula
Sv = nSv ÷ 1000000000
Derivation from SI units:
- 1 nSv = 10⁻⁹ Sv.
- 1 Sv = 1 J/kg weighted for radiation type (and tissue for effective dose).
Both units are defined exactly, so the factor is exact. Nanosievert definition: nanosievert; Sievert definition: sievert.
Worked examples
- A reading of 150 nSv converts to 1.5 × 10⁻⁷ Sv.
150 nSv × 1 × 10⁻⁹ = 1.5 × 10⁻⁷ Sv - A value of 500 nSv is 5 × 10⁻⁷ Sv.
500 nSv × 1 × 10⁻⁹ = 5 × 10⁻⁷ Sv
Nanosievert to Sievert conversion table
| Nanosieverts (nSv) | Sieverts (Sv) |
|---|---|
| 10 nSv | 1 × 10⁻⁸ Sv |
| 50 nSv | 5 × 10⁻⁸ Sv |
| 100 nSv | 1 × 10⁻⁷ Sv |
| 150 nSv | 1.5 × 10⁻⁷ Sv |
| 200 nSv | 2 × 10⁻⁷ Sv |
| 300 nSv | 3 × 10⁻⁷ Sv |
| 500 nSv | 5 × 10⁻⁷ Sv |
| 1000 nSv | 0.000001 Sv |
| 5000 nSv | 0.000005 Sv |
| 10000 nSv | 0.00001 Sv |
Where it's used
Nanosieverts are used for environmental radiation monitoring networks, while sieverts appear in radiation protection limits. Both measure equivalent and effective radiation dose, so the conversion is a fixed factor.
Nanosievert to other equivalent dose units
| Conversion | 1 nSv equals |
|---|---|
| nanosievert to sievert | 1 × 10⁻⁹ Sv |
| nanosievert to millisievert | 0.000001 mSv |
| nanosievert to microsievert | 0.001 µSv |
| nanosievert to rem | 1 × 10⁻⁷ rem |
| nanosievert to millirem | 0.0001 mrem |
Frequently asked questions
How many sieverts are in 1 nanosievert?
1 nSv = 1 × 10⁻⁹ Sv.
How do I convert nanosieverts to sieverts?
Multiply the value in nSv by 1 × 10⁻⁹, or divide it by 1000000000. For example, 15 nSv × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ Sv.
Is the nSv to Sv conversion exact?
Yes. Both units are defined exactly, and 1 nSv is exactly 1 × 10⁻⁹ Sv.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Nanosieverts to Sieverts (nSv to Sv). Retrieved October 25, 2026, from https://scientificconverters.com/equivalent-dose/nanosieverts-to-sieverts/
IEEE
Scientific Converters, "Convert Nanosieverts to Sieverts (nSv to Sv)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/equivalent-dose/nanosieverts-to-sieverts/