Intrinsic Rate of Increase Calculator

Calculate the intrinsic rate of natural increase (r) using multiple methods for population ecology analysis.

Calculation Method

Method

Birth Rate (b)

Death Rate (d)

Euler-Lotka: Σ(e^(-rx) · lx · mx) = 1
Lambda: λ = e^r (finite rate of increase)

Intrinsic Rate of Increase (r)

0.0700

Positive Growth

Lambda (λ)

1.0725

Doubling Time

9.90

R₀

1.419

Growth %

7.25%

TimeContinuousDiscrete

0100.0100.0

1107.3107.3

2115.0115.0

3123.4123.4

4132.3132.3

5141.9141.9

6152.2152.2

7163.2163.2

8175.1175.1

9187.8187.8

10201.4201.4