Convert Microsieverts to Nanosieverts (µSv to nSv)
1 microsievert (µSv) = 1000 nanosieverts (nSv). 1 nSv = 0.001 µSv. Example: 15 µSv = 15 × 1000 = 15000 nSv.
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1 µSv = 1000 nSv
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microsievert to nanosievert converter to paste a column from Excel.
How to Convert Microsievert to Nanosievert
- 1 µSv = 1000 nSv
- 1 nSv = 0.001 µSv
- Example: convert 15 µSv to nSv: 15 µSv = 15 × 1000 nSv = 15000 nSv
Formula
nSv = µSv × 1000
Derivation from SI units:
- 1 µSv = 10⁻⁶ Sv.
- 1 nSv = 10⁻⁹ Sv.
- 1 µSv = 0.000001 Sv ÷ 1 × 10⁻⁹ Sv per nSv = 1000 nSv
Both units are defined exactly, so the factor is exact. Microsievert definition: microsievert; Nanosievert definition: nanosievert.
Worked examples
- A reading of 5 µSv converts to 5000 nSv.
5 µSv × 1000 = 5000 nSv - A value of 40 µSv is 40000 nSv.
40 µSv × 1000 = 40000 nSv
Microsievert to Nanosievert conversion table
| Microsieverts (µSv) | Nanosieverts (nSv) |
|---|---|
| 0.1 µSv | 100 nSv |
| 0.27 µSv | 270 nSv |
| 1 µSv | 1000 nSv |
| 5 µSv | 5000 nSv |
| 10 µSv | 10000 nSv |
| 20 µSv | 20000 nSv |
| 40 µSv | 40000 nSv |
| 100 µSv | 100000 nSv |
| 1000 µSv | 1000000 nSv |
| 5000 µSv | 5000000 nSv |
Where it's used
Microsieverts are used for geiger counter and dosimeter readings (µSv/h), while nanosieverts appear in environmental radiation monitoring networks. Both measure equivalent and effective radiation dose, so the conversion is a fixed factor.
Microsievert to other equivalent dose units
| Conversion | 1 µSv equals |
|---|---|
| microsievert to nanosievert | 1000 nSv |
| microsievert to sievert | 0.000001 Sv |
| microsievert to millisievert | 0.001 mSv |
| microsievert to rem | 0.0001 rem |
| microsievert to millirem | 0.1 mrem |
Frequently asked questions
How many nanosieverts are in 1 microsievert?
1 µSv = 1000 nSv.
How do I convert microsieverts to nanosieverts?
Multiply the value in µSv by 1000. For example, 15 µSv × 1000 = 15000 nSv.
Is the µSv to nSv conversion exact?
Yes. Both units are defined exactly, and 1 µSv is exactly 1000 nSv.
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 Microsieverts to Nanosieverts (µSv to nSv). Retrieved October 25, 2026, from https://scientificconverters.com/equivalent-dose/microsieverts-to-nanosieverts/
IEEE
Scientific Converters, "Convert Microsieverts to Nanosieverts (µSv to nSv)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/equivalent-dose/microsieverts-to-nanosieverts/