Convert Gigacuries to Picocuries
Convert Gigacuries (GCi) to Picocuries (pCi) instantly and accurately.
Conversion Formula
pCi = GCi × 1.000000000e+21
About Gigacuries
The gigacurie (GCi) equals 3.7 × 10¹⁹ Bq. The total fission product inventory of a 1 GWe nuclear power reactor at equilibrium is ~0.5 GCi; global spent fuel inventories worldwide exceed 10 GCi; total reactor-produced tritium in the world's oceans is estimated at ~1 GCi. 1 GCi = 3.7 × 10¹⁹ Bq.
About Picocuries
The picocurie (pCi) equals 3.7 × 10⁻² Bq = 37 mBq. The US EPA uses pCi/L as the standard unit for indoor radon (action level: 4 pCi/L) and drinking water radon; NRC licence exemption thresholds and natural uranium activity in groundwater are expressed in pCi/L. 1 pCi = 3.7 × 10⁻² Bq.
Quick Reference Table
| Gigacuries (GCi) | Picocuries (pCi) |
|---|---|
| 1 GCi | 1 × 1021 pCi |
| 2 GCi | 2 × 1021 pCi |
| 5 GCi | 5 × 1021 pCi |
| 10 GCi | 1 × 1022 pCi |
| 25 GCi | 2.5 × 1022 pCi |
| 50 GCi | 5 × 1022 pCi |
| 100 GCi | 1 × 1023 pCi |