Radioactive Activity Calculator
Calculate radioactive activity from decay parameters
Unit Conversions
- 1 Ci (Curie) = 3.7 × 10¹⁰ Bq
- 1 mCi = 37 MBq
- 1 µCi = 37 kBq
Formulas Used
Activity: A = λN = (ln2/t_half) × N
Specific Activity: S = λ × N_A / M
Where: λ = decay constant, N = number of atoms, N_A = Avogadro's number
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: University Physics
by Young & Freedman
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.