Convert Rem to Nanosieverts (rem to nSv)
1 rem = 10000000 nanosieverts (nSv). 1 nSv = 1 × 10⁻⁷ rem. Example: 15 rem = 15 × 10000000 = 150000000 nSv.
Also searched as rem to nSv, rem in nSv, rem into nanosieverts, rem in nanosieverts, rem into nanosievert, rem to nanosievert, rem to nanosieverts converter and how many nanosieverts in a rem.
1 rem = 10000000 nSv
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk rem to nanosievert converter to paste a column from Excel.
How to Convert Rem to Nanosievert
- 1 rem = 10000000 nSv
- 1 nSv = 1 × 10⁻⁷ rem
- Example: convert 15 rem to nSv: 15 rem = 15 × 10000000 nSv = 150000000 nSv
Formula
nSv = rem × 10000000
Derivation from SI units:
- 1 rem = 0.01 Sv.
- 1 nSv = 10⁻⁹ Sv.
- 1 rem = 0.01 Sv ÷ 1 × 10⁻⁹ Sv per nSv = 10000000 nSv
Both units are defined exactly, so the factor is exact. Rem definition: rem; Nanosievert definition: nanosievert.
Worked examples
- A reading of 5 rem converts to 50000000 nSv.
5 rem × 10000000 = 50000000 nSv - A value of 50 rem is 500000000 nSv.
50 rem × 10000000 = 500000000 nSv
Rem to Nanosievert conversion table
| Rem | Nanosieverts (nSv) |
|---|---|
| 0.1 rem | 1000000 nSv |
| 0.5 rem | 5000000 nSv |
| 1 rem | 10000000 nSv |
| 5 rem | 50000000 nSv |
| 10 rem | 100000000 nSv |
| 25 rem | 250000000 nSv |
| 50 rem | 500000000 nSv |
| 100 rem | 1000000000 nSv |
| 400 rem | 4000000000 nSv |
| 1000 rem | 10000000000 nSv |
Where it's used
Rem are used for US NRC dose limits (5 rem/yr occupational), while nanosieverts appear in environmental radiation monitoring networks. Both measure equivalent and effective radiation dose, so the conversion is a fixed factor.
Rem to other equivalent dose units
| Conversion | 1 rem equals |
|---|---|
| rem to nanosievert | 10000000 nSv |
| rem to sievert | 0.01 Sv |
| rem to millisievert | 10 mSv |
| rem to microsievert | 10000 µSv |
| rem to millirem | 1000 mrem |
Frequently asked questions
How many nanosieverts are in 1 rem?
1 rem = 10000000 nSv.
How do I convert rem to nanosieverts?
Multiply the value in rem by 10000000. For example, 15 rem × 10000000 = 150000000 nSv.
Is the rem to nSv conversion exact?
Yes. Both units are defined exactly, and 1 rem is exactly 10000000 nSv.
Sources
- 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".
- 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 Rem to Nanosieverts (rem to nSv). Retrieved October 25, 2026, from https://scientificconverters.com/equivalent-dose/rem-to-nanosieverts/
IEEE
Scientific Converters, "Convert Rem to Nanosieverts (rem to nSv)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/equivalent-dose/rem-to-nanosieverts/