femtobecquerel to millibecquerel
Convert femtobecquerel (fBq) to millibecquerel (mBq). Use an editable radioactivity converter, conversion formula, and reference table.
1 fBq = 1e-12 mBq
Conversion formula
One femtobecquerel equals 1e-12 millibecquerel. Multiply your value in femtobecquerel by this factor to get millibecquerel. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 femtobecquerel:5 × 1e-12 = 5e-12 mBq
Conversion table
| femtobecquerel (fBq) | millibecquerel (mBq) |
|---|---|
| 0.01 | 1e-14 |
| 0.1 | 1e-13 |
| 1 | 1e-12 |
| 2 | 2e-12 |
| 5 | 5e-12 |
| 10 | 1e-11 |
| 25 | 2.5e-11 |
| 50 | 5e-11 |
| 100 | 1e-10 |
| 1000 | 1e-9 |
About these measurements
Activity measures nuclear decays per second.
The base reference used here is the becquerel. One femtobecquerel is 1e-15 base units; one millibecquerel is 0.001 base units.
Important distinctions
Activity is not absorbed dose or equivalent dose. This is a unit tool, not an exposure assessment.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert fBq to mBq?
Multiply the quantity in fBq by 1e-12. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the millibecquerel to femtobecquerel converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
