Convert Nanocuries to Microcuries (nCi to µCi)
1 nanocurie (nCi) = 0.001 microcuries (µCi). 1 µCi = 1000 nCi. Example: 15 nCi = 15 × 0.001 = 0.015 µCi.
Also searched as nanocuries to µCi, nanocuries in µCi, nanocuries into microcuries, nCi to µCi, nCi in microcuries, nCi into microcurie, nanocurie to microcurie, nCi to microcuries converter and how many microcuries in a nanocurie.
1 nCi = 0.001 µCi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk nanocurie to microcurie converter to paste a column from Excel.
How to Convert Nanocurie to Microcurie
- 1 nCi = 0.001 µCi
- 1 µCi = 1000 nCi
- Example: convert 15 nCi to µCi: 15 nCi = 15 × 0.001 µCi = 0.015 µCi
Formula
µCi = nCi ÷ 1000
Derivation from SI units:
- 1 nCi = 37 Bq.
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
- 1 nCi = 37 Bq ÷ 37000 Bq per µCi = 0.001 µCi
Both units are defined exactly, so the factor is exact. Nanocurie definition: nanocurie; Microcurie definition: microcurie.
Worked examples
- A reading of 2 nCi converts to 0.002 µCi.
2 nCi × 0.001 = 0.002 µCi - A value of 20 nCi is 0.02 µCi.
20 nCi × 0.001 = 0.02 µCi
Nanocurie to Microcurie conversion table
| Nanocuries (nCi) | Microcuries (µCi) |
|---|---|
| 0.1 nCi | 0.0001 µCi |
| 0.5 nCi | 0.0005 µCi |
| 1 nCi | 0.001 µCi |
| 2 nCi | 0.002 µCi |
| 5 nCi | 0.005 µCi |
| 10 nCi | 0.01 µCi |
| 20 nCi | 0.02 µCi |
| 50 nCi | 0.05 µCi |
| 100 nCi | 0.1 µCi |
| 1000 nCi | 1 µCi |
Where it's used
Nanocuries are used for environmental sample activities, while microcuries appear in check and calibration sources. Both measure activity of a radioactive source, so the conversion is a fixed factor.
Nanocurie to other radioactivity units
| Conversion | 1 nCi equals |
|---|---|
| nanocurie to microcurie | 0.001 µCi |
| nanocurie to becquerel | 37 Bq |
| nanocurie to curie | 1 × 10⁻⁹ Ci |
| nanocurie to megabecquerel | 0.000037 MBq |
| nanocurie to millicurie | 0.000001 mCi |
| nanocurie to picocurie | 1000 pCi |
| nanocurie to kilobecquerel | 0.037 kBq |
| nanocurie to gigabecquerel | 3.7 × 10⁻⁸ GBq |
Show 3 more units
| nanocurie to disintegration per minute | 2220 dpm |
|---|---|
| nanocurie to terabecquerel | 3.7 × 10⁻¹¹ TBq |
| nanocurie to rutherford | 0.000037 Rd |
Frequently asked questions
How many microcuries are in 1 nanocurie?
1 nCi = 0.001 µCi.
How do I convert nanocuries to microcuries?
Multiply the value in nCi by 0.001, or divide it by 1000. For example, 15 nCi × 0.001 = 0.015 µCi.
Is the nCi to µCi conversion exact?
Yes. Both units are defined exactly, and 1 nCi is exactly 0.001 µCi.
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, "curie".
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 Nanocuries to Microcuries (nCi to µCi). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/nanocuries-to-microcuries/
IEEE
Scientific Converters, "Convert Nanocuries to Microcuries (nCi to µCi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/nanocuries-to-microcuries/