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sci.demographic-dependency-ratio Calculator
Calculates old-age and youth dependency ratios from population age structure: DR_old = pop(65+)/pop(15–64) × 100. Japan's old-age dependency ratio exceeds 50 — for every working-age person, there are 0.5 elderly dependants — the highest in the world.
Inputs
Pop 0 14
Age in completed years. Many health and fitness formulas adjust for age.
Pop 15 64
Energy transferred by a force over a displacement (J = N·m).
Pop 65Plus
Age in completed years. Many health and fitness formulas adjust for age.
Results
total dependency ratio TDR
The combined total across all inputs and components.
youth dependency ratio YDR
The proportional relationship between two quantities.
old-age dependency ratio ODR
The proportional relationship between two quantities.
support ratio (workers per dependent)
The proportional relationship between two quantities.