Geometric Series Online Calculator

Online calculator to calculate the sum of the terms in a geometric sequence.
and the nth term an = a1 r^{n  1} Use of the Geometric Series calculator1  Enter the first term A1 in the sequence, the common ratio r and n n the number of terms in the sum then press enter. A1 and r may be entered as an integer, a decimal or a fraction. n must be a positive integer. More References and LinksMath Calculators and Solvers. 