About the Population Growth Calculator
Models exponential and logistic population growth.
What it is
Choose continuous exponential (N₀e^rt), discrete exponential (N₀(1+r)^t), or logistic growth (K/(1+((K−N₀)/N₀)e^(−rt))), enter your parameters, and see the projected population, a chart of the curve, and a table of values.
Features
Two models
Exponential (continuous or discrete) and logistic.
Doubling time
Computed automatically for exponential growth.
Carrying capacity
Shown as a reference line in logistic mode.
Solve-for-unknown
Back-calculate growth rate from N₀, N(t), and t.