⚡
Instant calculation
Enter the data and press the button to get the result.
Online Calculator
Geometric progression calculator
Enter the first term, common ratio, and number of terms.
Information
🔒
Local processing
The calculation is done directly in your browser.
💸
Free
No registration, external API or subscription required.
Frequently asked questions
What is a geometric progression?
It is a sequence where each term is the previous term multiplied by a constant ratio.
How is the nth term calculated?
aₙ = a₁ × r^(n - 1).
What happens if the common ratio is 1?
All terms are equal, and the sum is a₁ × n.
Can the common ratio be negative?
Yes.