Generation Time Calculator
Calculate mean generation time and related demographic parameters from age-specific survival and fecundity data.
Life Table Data
Generation Time: T = Σ(x·lx·mx) / Σ(lx·mx)
Net Reproductive Rate: R₀ = Σ(lx·mx)
Intrinsic Rate: r ≈ ln(R₀) / T
Mean Generation Time (T)
2.855
time units
Net Reproductive Rate
3.450
Intrinsic Rate (r)
0.4527
Cohort Gen. Time
2.736
Doubling Time
1.53
Demographic Analysis
Life Expectancy (e₀)3.05
Mean Repro. Age2.855
SD of Repro. Age0.747
Population TrendGrowing
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.