Drake Equation Calculator

Drake Equation Parameter Instructions

• R* – Star Formation Rate: average number of new stars formed per year in our galaxy.
• fp – Fraction of Stars with Planets: proportion of stars that have planetary systems (0–1).
• ne – Number of Habitable Planets per Star: average number of planets around each star that could support life.
• fl – Fraction Where Life Appears: fraction of habitable planets where life actually develops (0–1).
• fi – Fraction That Develops Intelligent Life: fraction of planets with life where intelligent life evolves (0–1).
• fc – Fraction Developing Detectable Technology: fraction of intelligent civilizations that develop detectable signals (0–1).
• L – Lifetime of Detectable Civilizations: average duration (in years) that civilizations release detectable signals.

Module 3.2.5 – Drake Equation Calculator

System Active

This module calculates N using the Drake Equation:

N = R* x fp x ne x fl x fi x fc x L

• R* – Star formation rate per year
• fp – Fraction of stars with planets
• ne – Planets suitable for life per star
• fl – Fraction where life appears
• fi – Fraction developing intelligent life
• fc – Fraction developing detectable technology
• L – Lifetime of detectable civilizations (years)

R* (stars/year): fp (fraction with planets): ne (planets suitable for life): fl (fraction life appears): fi (fraction intelligent): fc (fraction detectable): L (lifetime years):

N = 0