Convert Nanosieverts to Millirem (nSv to mrem)
1 nanosievert (nSv) = 0.0001 millirem (mrem). 1 mrem = 10000 nSv. Example: 15 nSv = 15 × 0.0001 = 0.0015 mrem.
Also searched as nanosieverts to mrem, nanosieverts in mrem, nanosieverts into millirem, nSv to mrem, nSv in millirem, nSv into millirem, nanosievert to millirem, nSv to millirem converter and how many millirem in a nanosievert.
1 nSv = 0.0001 mrem
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk nanosievert to millirem converter to paste a column from Excel.
How to Convert Nanosievert to Millirem
- 1 nSv = 0.0001 mrem
- 1 mrem = 10000 nSv
- Example: convert 15 nSv to mrem: 15 nSv = 15 × 0.0001 mrem = 0.0015 mrem
Formula
mrem = nSv ÷ 10000
Derivation from SI units:
- 1 nSv = 10⁻⁹ Sv.
- 1 mrem = 10⁻⁵ Sv = 10 µSv.
- 1 nSv = 1 × 10⁻⁹ Sv ÷ 0.00001 Sv per mrem = 0.0001 mrem
Both units are defined exactly, so the factor is exact. Nanosievert definition: nanosievert; Millirem definition: millirem.
Worked examples
- A reading of 150 nSv converts to 0.015 mrem.
150 nSv × 0.0001 = 0.015 mrem - A value of 500 nSv is 0.05 mrem.
500 nSv × 0.0001 = 0.05 mrem
Nanosievert to Millirem conversion table
| Nanosieverts (nSv) | Millirem (mrem) |
|---|---|
| 10 nSv | 0.001 mrem |
| 50 nSv | 0.005 mrem |
| 100 nSv | 0.01 mrem |
| 150 nSv | 0.015 mrem |
| 200 nSv | 0.02 mrem |
| 300 nSv | 0.03 mrem |
| 500 nSv | 0.05 mrem |
| 1000 nSv | 0.1 mrem |
| 5000 nSv | 0.5 mrem |
| 10000 nSv | 1 mrem |
Where it's used
Nanosieverts are used for environmental radiation monitoring networks, while millirem appear in US public dose limit (100 mrem/yr). 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 millirem | 0.0001 mrem |
| 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 |
Frequently asked questions
How many millirem are in 1 nanosievert?
1 nSv = 0.0001 mrem.
How do I convert nanosieverts to millirem?
Multiply the value in nSv by 0.0001, or divide it by 10000. For example, 15 nSv × 0.0001 = 0.0015 mrem.
Is the nSv to mrem conversion exact?
Yes. Both units are defined exactly, and 1 nSv is exactly 0.0001 mrem.
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).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "rem".
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 Millirem (nSv to mrem). Retrieved October 25, 2026, from https://scientificconverters.com/equivalent-dose/nanosieverts-to-millirem/
IEEE
Scientific Converters, "Convert Nanosieverts to Millirem (nSv to mrem)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/equivalent-dose/nanosieverts-to-millirem/