Convert Becquerels to Millibecquerels

Convert Becquerels (Bq) to Millibecquerels (mBq) instantly and accurately.

Becquerels (Bq)
Millibecquerels (mBq)

Conversion Formula

mBq = Bq × 1000

About Becquerels

The becquerel (Bq) is the SI coherent unit of radioactivity, defined as exactly one nuclear disintegration per second. Named after Henri Becquerel (discoverer of radioactivity, 1896), it replaced the curie in SI. Household smoke detector ²⁴¹Am sources contain ~30 kBq; a banana contains ~15 Bq of ⁴⁰K. 1 Bq = 1 s⁻¹.

About Millibecquerels

The millibecquerel (mBq) equals 10⁻³ Bq. Radiological surface contamination surveys in nuclear facilities use mBq/cm² alert levels for alpha and beta emitters; uranium and plutonium bioassay in urine from occupationally exposed workers is reported in mBq/sample. 1 mBq = 10⁻³ Bq = 10⁻³ s⁻¹.

Quick Reference Table

Becquerels (Bq)Millibecquerels (mBq)
1 Bq1000 mBq
2 Bq2000 mBq
5 Bq5000 mBq
10 Bq10000 mBq
25 Bq25000 mBq
50 Bq50000 mBq
100 Bq100000 mBq

→ Full Radioactive Activity Converter