Convert Petabecquerels to Curies
Convert Petabecquerels (PBq) to Curies (Ci) instantly and accurately.
Conversion Formula
Ci = PBq × 27027.02703
About Petabecquerels
The petabecquerel (PBq) equals 10¹⁵ Bq. The Chernobyl accident (1986) released ~5200 PBq of noble gases and ~1760 PBq of ¹³¹I; Fukushima Daiichi (2011) released 400-900 PBq ¹³¹I-equivalent; global ⁸⁵Kr inventory from nuclear operations is ~1300 PBq. 1 PBq = 10¹⁵ Bq = 10³ TBq.
About Curies
The curie (Ci) equals exactly 3.7 × 10¹⁰ Bq = 37 GBq, originally defined as the activity of 1 g of ²²⁶Ra. Still widely used in the US: ⁶⁰Co teletherapy sources are 5000-15000 Ci; ¹³⁷Cs blood irradiators are 1000-40000 Ci; NRC source licences for industrial radiography cite Ci limits. 1 Ci = 3.7 × 10¹⁰ Bq.
Quick Reference Table
| Petabecquerels (PBq) | Curies (Ci) |
|---|---|
| 1 PBq | 27027 Ci |
| 2 PBq | 54054.1 Ci |
| 5 PBq | 135135 Ci |
| 10 PBq | 270270 Ci |
| 25 PBq | 675676 Ci |
| 50 PBq | 1351350 Ci |
| 100 PBq | 2702700 Ci |