Half Life Calculator Created By : awnish Reviewed By : Phani Ponnapalli Last Updated : May 18, 2023 Choose a Calculation Find Initial Quantity(N0) | Given Remaning Quantity(Nt), Total Time ,decay constant(λ) Find Remaning Quantity(Nt) | Given Initial Quantity(N0),Total Time,decay constant(λ) Find Total Time | Given Initial Quantity(N0), decay constant(λ) , Remaning Quantity(Nt) Remaning Quantity(Nt) decay constant(λ) per/second per/min per/hour per/day per/week per/month per/year Total Time seconds minute hour day week month year Calculate Reset