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 Location: Radiochemicals > Radiation Safety and Technical Support > Calculators > Percentage decay
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Radioactive Isotope Decay Calculator

Instructions for use:
1. Either a) select an isotope from the drop-down list (its half-life will fill automatically),
     or b) enter the half-life of your isotope in days
2. Enter number of days over which you would like the decay calculation to be based
3. Click 'Calculate'
4. Click 'Reset' before entering new values

* = compulsory fields

Isotope

* Half-life (days)
* Number of days 
% Remaining: