Online Calculators & Tools





Exponential Growth/Decay Calculator with formulas


Enter initial value (x0):  
Enter growth/decay rate (r): %
Enter time (t):  
 
   
 
Value at time t (x(t)):  



Example


x0 = 50


r = 4% = 0.04


t = 90 hours


x(t) = x0 × (1 + r) t = 50×(1+0.04)90 = 1706



Online exponential growth/decay calculator.


The exponential growth calculator calculates the final value of some quantity, given its initial value, rate of growth and elapsed time. .. . An alternative way of writing the exponential growth equation. Example on how to use the formula for exponential decay.


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: