Convert Becquerels to Microcuries
Convert Becquerels (Bq) to Microcuries (µCi) instantly and accurately.
Conversion Formula
µCi = Bq × 2.702702703e-5
About Becquerels
The becquerel (Bq) is the SI coherent unit of radioactivity, defined as exactly one nuclear disintegration per second. Named after Henri Becquerel (discoverer of radioactivity, 1896), it replaced the curie in SI. Household smoke detector ²⁴¹Am sources contain ~30 kBq; a banana contains ~15 Bq of ⁴⁰K. 1 Bq = 1 s⁻¹.
About Microcuries
The microcurie (µCi) equals 3.7 × 10⁴ Bq = 37 kBq. Sealed sources for educational and bench-top laboratory use are licensed up to 1-10 µCi under US NRC 10 CFR 30.18; small-animal PET imaging doses of ¹⁸F in preclinical research are expressed in µCi. 1 µCi = 3.7 × 10⁴ Bq.
Quick Reference Table
| Becquerels (Bq) | Microcuries (µCi) |
|---|---|
| 1 Bq | 2.703 × 10-5 µCi |
| 2 Bq | 5.405 × 10-5 µCi |
| 5 Bq | 0.000135135 µCi |
| 10 Bq | 0.00027027 µCi |
| 25 Bq | 0.000675676 µCi |
| 50 Bq | 0.00135135 µCi |
| 100 Bq | 0.0027027 µCi |