Convert Becquerels to Microcuries (Bq to µCi)
1 becquerel (Bq) = 0.00002702702703 microcuries (µCi). 1 µCi = 37000 Bq. Example: 15 Bq = 15 × 0.00002702702703 = 0.0004054054054 µCi.
Also searched as becquerels to µCi, becquerels in µCi, becquerels into microcuries, Bq to µCi, Bq in microcuries, Bq into microcurie, becquerel to microcurie, Bq to microcuries converter and how many microcuries in a becquerel.
1 Bq = 0.00002702702703 µCi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk becquerel to microcurie converter to paste a column from Excel.
How to Convert Becquerel to Microcurie
- 1 Bq = 0.00002702702703 µCi
- 1 µCi = 37000 Bq
- Example: convert 15 Bq to µCi: 15 Bq = 15 × 0.00002702702703 µCi = 0.0004054054054 µCi
Formula
µCi = Bq ÷ 37000
Derivation from SI units:
- 1 Bq = 1 decay per second (s⁻¹).
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
Both units are defined exactly, so the factor is exact. Becquerel definition: becquerel; Microcurie definition: microcurie.
Worked examples
- A reading of 100 Bq converts to 0.002702702703 µCi.
100 Bq × 0.00002702702703 = 0.002702702703 µCi - A value of 3700 Bq is 0.1 µCi.
3700 Bq × 0.00002702702703 = 0.1 µCi
Becquerel to Microcurie conversion table
| Becquerels (Bq) | Microcuries (µCi) |
|---|---|
| 1 Bq | 0.00002702702703 µCi |
| 10 Bq | 0.0002702702703 µCi |
| 37 Bq | 0.001 µCi |
| 100 Bq | 0.002702702703 µCi |
| 370 Bq | 0.01 µCi |
| 1000 Bq | 0.02702702703 µCi |
| 3700 Bq | 0.1 µCi |
| 10000 Bq | 0.2702702703 µCi |
| 37000 Bq | 1 µCi |
| 1000000 Bq | 27.02702703 µCi |
Where it's used
Becquerels are used for food and environmental radioactivity limits, while microcuries appear in check and calibration sources. Both measure activity of a radioactive source, so the conversion is a fixed factor.
Becquerel to other radioactivity units
| Conversion | 1 Bq equals |
|---|---|
| becquerel to microcurie | 0.00002702702703 µCi |
| becquerel to curie | 2.702702703 × 10⁻¹¹ Ci |
| becquerel to megabecquerel | 0.000001 MBq |
| becquerel to millicurie | 2.702702703 × 10⁻⁸ mCi |
| becquerel to picocurie | 27.02702703 pCi |
| becquerel to kilobecquerel | 0.001 kBq |
| becquerel to gigabecquerel | 1 × 10⁻⁹ GBq |
| becquerel to disintegration per minute | 60 dpm |
Show 3 more units
| becquerel to terabecquerel | 1 × 10⁻¹² TBq |
|---|---|
| becquerel to nanocurie | 0.02702702703 nCi |
| becquerel to rutherford | 0.000001 Rd |
Frequently asked questions
How many microcuries are in 1 becquerel?
1 Bq = 0.00002702702703 µCi.
How do I convert becquerels to microcuries?
Multiply the value in Bq by 0.00002702702703, or divide it by 37000. For example, 15 Bq × 0.00002702702703 = 0.0004054054054 µCi.
Is the Bq to µCi conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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, "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 Becquerels to Microcuries (Bq to µCi). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/becquerels-to-microcuries/
IEEE
Scientific Converters, "Convert Becquerels to Microcuries (Bq to µCi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/becquerels-to-microcuries/