Convert Microcuries to Femtobecquerels
Convert Microcuries (µCi) to Femtobecquerels (fBq) instantly and accurately.
Conversion Formula
fBq = µCi × 3.700000000e+19
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.
About Femtobecquerels
The femtobecquerel (fBq) equals 10⁻¹⁵ Bq, used in accelerator mass spectrometry (AMS) to quantify cosmogenic radionuclides (¹⁰Be, ³⁶Cl) in ice cores and geological samples. Ultra-low-background counting in deep underground laboratories reaches the fBq/kg level for solar neutrino detector purity assessment. 1 fBq = 10⁻¹⁵ Bq = 10⁻³ pBq.
Quick Reference Table
| Microcuries (µCi) | Femtobecquerels (fBq) |
|---|---|
| 1 µCi | 3.7 × 1019 fBq |
| 2 µCi | 7.4 × 1019 fBq |
| 5 µCi | 1.85 × 1020 fBq |
| 10 µCi | 3.7 × 1020 fBq |
| 25 µCi | 9.25 × 1020 fBq |
| 50 µCi | 1.85 × 1021 fBq |
| 100 µCi | 3.7 × 1021 fBq |