Initial Value Exponential Decay Calculator
Easily calculate the initial value in exponential decay scenarios. Input final value, decay rate, and time to find the starting amount. Visualize decay with an interactive chart.
Input Values
Result
Exponential Decay Visualization
Understanding Exponential Decay
Exponential decay describes the decrease in a quantity over time. It's commonly observed in various phenomena like radioactive decay, drug metabolism, and depreciation of assets. The formula to calculate the final value (FV) after exponential decay from an initial value (IV) is:
FV = IV * (1 - Decay Rate)Time
This calculator works in reverse, finding the initial value (IV) when you know the final value, decay rate, and time. The decay rate is the percentage decrease per time period, expressed as a decimal (e.g., 10% decay rate is 0.1). Time is the duration over which the decay occurs. Use this tool to easily determine the starting amount before exponential decay took place.
For further reading on exponential decay, you can refer to resources like Wikipedia's article on Exponential Decay.