Convert Millibecquerels per kilogram to Femtobecquerels per kilogram
Convert Millibecquerels per kilogram (mBq/kg) to Femtobecquerels per kilogram (fBq/kg) instantly and accurately.
Conversion Formula
fBq/kg = mBq/kg × 1000000000000
About Millibecquerels per kilogram
The millibecquerel per kilogram (mBq/kg) equals 10⁻³ Bq/kg. Used for very low-level radioactivity in food and environmental samples; trace ¹³⁷Cs in ocean water and ²²⁶Ra in mineral waters are reported in mBq/kg; occupational bioassay detection limits for actinides in urine and feces are expressed in mBq/kg. 1 mBq/kg = 10⁻³ Bq/kg.
About Femtobecquerels per kilogram
The femtobecquerel per kilogram (fBq/kg) equals 10⁻¹⁵ Bq/kg. Used in accelerator mass spectrometry (AMS) to quantify cosmogenic radionuclide concentrations (¹⁰Be, ³⁶Cl) in ice cores, sediments, and geological minerals where activities per unit mass are at the femto-level. Ultra-clean radiochemistry purity assessments for solar neutrino detectors also reach fBq/kg sensitivities. 1 fBq/kg = 10⁻¹⁵ Bq/kg.
Quick Reference Table
| Millibecquerels per kilogram (mBq/kg) | Femtobecquerels per kilogram (fBq/kg) |
|---|---|
| 1 mBq/kg | 1 × 1012 fBq/kg |
| 2 mBq/kg | 2 × 1012 fBq/kg |
| 5 mBq/kg | 5 × 1012 fBq/kg |
| 10 mBq/kg | 1 × 1013 fBq/kg |
| 25 mBq/kg | 2.5 × 1013 fBq/kg |
| 50 mBq/kg | 5 × 1013 fBq/kg |
| 100 mBq/kg | 1 × 1014 fBq/kg |