Geometric Series Calculator

A geometric series is also known as a geometric progression. It is an ordered list of numbers in which each term after the first is found by multiplying the previous one by a fixed non-zero number called the common ratio r. This tool calculates the nth term of a Geometric series with an initial value (a) and common ratio (r). The formula for calculating the nth term of a geometric series is given by:
an = a r(n-1)

Type the values below to calculate the nth term of a geometric series:

Initial Value (a)

Common Ratio (r)