Exponential Growth/Decay Calculator
Online exponential growth/decay calculator.
Exponential growth/decay formula
x(t) = x0 × (1 + r) t
x(t) is the value at time t.
x0 is the initial value at time t=0.
r is the growth rate when r>0 or decay rate when r<0, in percent.
t is the time in discrete intervals and selected time units.
Exponential growth calculator
Enter the initial value x0,
growth rate r and time interval t and press the = button:
x0 = 50
r = 4% = 0.04
t = 90 hours
x(t) = x0
× (1 + r) t = 50×(1+0.04)90 = 1706
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