Geometric Sequence Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the first term, common ratio and term number.
- Press Calculate.
How it works
Each term multiplies by a fixed ratio. The nth term = first × ratio^(n − 1).
Worked example
2, 6, 18… (n=4). 4th term 54, sum 80.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.