Drake Equation Calculator

R* (Average rate of star formation):
fp (Fraction of stars with planets):
ne (Number of Earth-like planets per star):
fl (Fraction of Earth-like planets that develop life):
fi (Fraction of planets with life that develop intelligence):
fc (Fraction of intelligent life that develops communication):
L (Average lifetime of a communicating civilization):



N (Number of communicating civilizations in the Milky Way):

 

About Drake Equation Calculator (Formula)

The Drake equation is a probabilistic equation that attempts to estimate the number of extraterrestrial civilizations in our galaxy with which communication might be possible. The equation was first proposed by Frank Drake in 1961, and it takes into account several factors that are believed to be necessary for the emergence of intelligent extraterrestrial life. The equation is:

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

Where:

  • N is the number of civilizations in our galaxy with which communication might be possible
  • R* is the average rate of star formation in our galaxy
  • fp is the fraction of those stars that have planets
  • ne is the number of planets per star that are in the “habitable zone” and are capable of supporting life
  • fl is the fraction of habitable planets on which life actually arises
  • fi is the fraction of life-bearing planets on which intelligent life emerges
  • fc is the fraction of intelligent life-bearing planets on which a civilization capable of interstellar communication develops
  • L is the average lifetime of such a communicating civilization.

The Drake equation is a way to estimate the number of civilizations in our galaxy that might be capable of communicating with us, but it’s important to note that all the parameters in the equation are highly speculative and there is a large uncertainty associated with them. The result of this equation should be taken with a grain of salt.

In a Drake Equation calculator, when the user inputs the values of the parameters in the equation, the calculator will use the above formula to calculate the number of civilizations in our galaxy that might be capable of communicating with us. It’s a simple and easy way to estimate the number without doing the calculation manually.

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