Population Growth Calculator

Model population growth using exponential and logistic equations to predict future population sizes.

Input Parameters

Initial Population (N₀)

Intrinsic Growth Rate (r)

Time Period (years)

Carrying Capacity (K)

Exponential: N(t) = N₀e^(rt)
Logistic: N(t) = K/(1+((K-N₀)/N₀)e^(-rt))

Exponential

1.65K

at t=10

Logistic

1.55K

15.5% of K

Doubling Time

13.86

Time to K/2

43.94

Exp. Change

648.72

Log. Change

548.28

YearExponentialLogistic

01.00K1.00K

11.05K1.05K

21.11K1.09K

31.16K1.14K

41.22K1.19K

51.28K1.25K

61.35K1.30K

71.42K1.36K

81.49K1.42K

91.57K1.48K

101.65K1.55K