Convert Femtobecquerels per kilogram to Millibecquerels per kilogram
Convert Femtobecquerels per kilogram (fBq/kg) to Millibecquerels per kilogram (mBq/kg) instantly and accurately.
Conversion Formula
mBq/kg = fBq/kg × 1.000000000e-12
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.
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.
Quick Reference Table
| Femtobecquerels per kilogram (fBq/kg) | Millibecquerels per kilogram (mBq/kg) |
|---|---|
| 1 fBq/kg | 1 × 10-12 mBq/kg |
| 2 fBq/kg | 2 × 10-12 mBq/kg |
| 5 fBq/kg | 5 × 10-12 mBq/kg |
| 10 fBq/kg | 1 × 10-11 mBq/kg |
| 25 fBq/kg | 2.5 × 10-11 mBq/kg |
| 50 fBq/kg | 5 × 10-11 mBq/kg |
| 100 fBq/kg | 1 × 10-10 mBq/kg |