Convert Becquerels to Kilocuries
Convert Becquerels (Bq) to Kilocuries (kCi) instantly and accurately.
Conversion Formula
kCi = Bq × 2.702702703e-14
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 Kilocuries
The kilocurie (kCi) equals 3.7 × 10¹³ Bq. ⁶⁰Co and ¹³⁷Cs blood irradiation and food sterilisation facilities use 20-200 kCi sources; research reactor fission product inventories are characterised in kCi; ⁹⁰Sr/⁹⁰Y radioisotope thermoelectric generators (RTGs) contain 10-150 kCi. 1 kCi = 3.7 × 10¹³ Bq.
Quick Reference Table
| Becquerels (Bq) | Kilocuries (kCi) |
|---|---|
| 1 Bq | 2.703 × 10-14 kCi |
| 2 Bq | 5.405 × 10-14 kCi |
| 5 Bq | 1.351 × 10-13 kCi |
| 10 Bq | 2.703 × 10-13 kCi |
| 25 Bq | 6.757 × 10-13 kCi |
| 50 Bq | 1.351 × 10-12 kCi |
| 100 Bq | 2.703 × 10-12 kCi |