Convert Picocuries to Gigacuries
Convert Picocuries (pCi) to Gigacuries (GCi) instantly and accurately.
Conversion Formula
GCi = pCi × 1.000000000e-21
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.
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.
Quick Reference Table
| Picocuries (pCi) | Gigacuries (GCi) |
|---|---|
| 1 pCi | 1 × 10-21 GCi |
| 2 pCi | 2 × 10-21 GCi |
| 5 pCi | 5 × 10-21 GCi |
| 10 pCi | 1 × 10-20 GCi |
| 25 pCi | 2.5 × 10-20 GCi |
| 50 pCi | 5 × 10-20 GCi |
| 100 pCi | 1 × 10-19 GCi |