This half-life calculator helps you determine the time it takes for a substance to reduce to half its initial quantity through decay.
Half-Life Calculator
Use this calculator to find the remaining quantity of a substance based on its half-life and the time elapsed. The half-life is the time taken for the quantity to reduce to half its initial value.
How to Use
- Enter the initial amount of the substance in the “Initial Amount” field.
- Input the half-life of the substance in the “Half-Life” field. Ensure the time unit for half-life and time elapsed are the same.
- Enter the time elapsed since the beginning of the decay process in the “Time Elapsed” field.
- Click on the “Calculate” button to compute the final amount.
- The result will be displayed in the “Result” field.
How It Calculates
The calculator uses the half-life formula N = N0 * (1/2)(t/t1/2), where:
- N is the remaining amount of the substance,
- N0 is the initial amount of the substance,
- t is the time elapsed, and
- t1/2 is the half-life of the substance.
Limitations
The accuracy of the half-life calculator is contingent upon the correctness of the values entered. It assumes the decay process is consistent with first-order kinetics and does not account for other influencing factors that might alter the decay rate. Hence, this calculator should be used for estimation purposes only.