Convert Curies per kilogram to Becquerels per kilogram

Convert Curies per kilogram (Ci/kg) to Becquerels per kilogram (Bq/kg) instantly and accurately.

Curies per kilogram (Ci/kg)
Becquerels per kilogram (Bq/kg)

Conversion Formula

Bq/kg = Ci/kg × 37000000000

About Curies per kilogram

The curie per kilogram (Ci/kg) equals 3.7 × 10¹⁰ Bq/kg = 37 GBq/kg. High specific activity sealed sources: ¹¹¹In and ¹³³Xe produced in accelerators are characterised in Ci/kg; ⁴²K formed by neutron activation in high-potassium food samples in research irradiators reaches Ci/kg values. 1 Ci/kg = 3.7 × 10¹⁰ Bq/kg.

About Becquerels per kilogram

The becquerel per kilogram (Bq/kg) is the SI derived unit of specific activity. It is the primary unit in food safety regulations worldwide: the EU, Japan, and Codex Alimentarius set ¹³⁷Cs limits in Bq/kg for foodstuffs; soil ¹³⁷Cs contamination from Chernobyl and Fukushima fallout is mapped in Bq/kg. 1 Bq/kg = 1 s⁻¹ kg⁻¹ = 1 mBq/g.

Quick Reference Table

Curies per kilogram (Ci/kg)Becquerels per kilogram (Bq/kg)
1 Ci/kg3.7 × 1010 Bq/kg
2 Ci/kg7.4 × 1010 Bq/kg
5 Ci/kg1.85 × 1011 Bq/kg
10 Ci/kg3.7 × 1011 Bq/kg
25 Ci/kg9.25 × 1011 Bq/kg
50 Ci/kg1.85 × 1012 Bq/kg
100 Ci/kg3.7 × 1012 Bq/kg

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