Convert Microcuries to Becquerels (µCi to Bq)
1 microcurie (µCi) = 37000 becquerels (Bq). 1 Bq = 0.00002702702703 µCi. Example: 15 µCi = 15 × 37000 = 555000 Bq.
Also searched as microcuries to Bq, microcuries in Bq, microcuries into becquerels, µCi to Bq, µCi in becquerels, µCi into becquerel, microcurie to becquerel, µCi to becquerels converter and how many becquerels in a microcurie.
1 µCi = 37000 Bq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microcurie to becquerel converter to paste a column from Excel.
How to Convert Microcurie to Becquerel
- 1 µCi = 37000 Bq
- 1 Bq = 0.00002702702703 µCi
- Example: convert 15 µCi to Bq: 15 µCi = 15 × 37000 Bq = 555000 Bq
Formula
Bq = µCi × 37000
Derivation from SI units:
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
- 1 Bq = 1 decay per second (s⁻¹).
Both units are defined exactly, so the factor is exact. Microcurie definition: microcurie; Becquerel definition: becquerel.
Worked examples
- A reading of 2 µCi converts to 74000 Bq.
2 µCi × 37000 = 74000 Bq - A value of 20 µCi is 740000 Bq.
20 µCi × 37000 = 740000 Bq
Microcurie to Becquerel conversion table
| Microcuries (µCi) | Becquerels (Bq) |
|---|---|
| 0.1 µCi | 3700 Bq |
| 0.5 µCi | 18500 Bq |
| 1 µCi | 37000 Bq |
| 2 µCi | 74000 Bq |
| 5 µCi | 185000 Bq |
| 10 µCi | 370000 Bq |
| 20 µCi | 740000 Bq |
| 50 µCi | 1850000 Bq |
| 100 µCi | 3700000 Bq |
| 1000 µCi | 37000000 Bq |
Where it's used
Microcuries are used for check and calibration sources, while becquerels appear in food and environmental radioactivity limits. Both measure activity of a radioactive source, so the conversion is a fixed factor.
Microcurie to other radioactivity units
| Conversion | 1 µCi equals |
|---|---|
| microcurie to becquerel | 37000 Bq |
| microcurie to curie | 0.000001 Ci |
| microcurie to megabecquerel | 0.037 MBq |
| microcurie to millicurie | 0.001 mCi |
| microcurie to picocurie | 1000000 pCi |
| microcurie to kilobecquerel | 37 kBq |
| microcurie to gigabecquerel | 0.000037 GBq |
| microcurie to disintegration per minute | 2220000 dpm |
Show 3 more units
| microcurie to terabecquerel | 3.7 × 10⁻⁸ TBq |
|---|---|
| microcurie to nanocurie | 1000 nCi |
| microcurie to rutherford | 0.037 Rd |
Frequently asked questions
How many becquerels are in 1 microcurie?
1 µCi = 37000 Bq.
How do I convert microcuries to becquerels?
Multiply the value in µCi by 37000. For example, 15 µCi × 37000 = 555000 Bq.
Is the µCi to Bq conversion exact?
Yes. Both units are defined exactly, and 1 µCi is exactly 37000 Bq.
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".
- 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 Microcuries to Becquerels (µCi to Bq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/microcuries-to-becquerels/
IEEE
Scientific Converters, "Convert Microcuries to Becquerels (µCi to Bq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/microcuries-to-becquerels/