Calculateur de Somme Géométrique

Last updated: 2026-08-24

Calculateur de Somme Géométrique — Calculez la somme des n premiers termes d'une suite géométrique.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Enter a1: 1
  2. Enter r: 2
  3. Enter n: 10
  4. Calculate and display the sum result

Common mistakes

  • ⚠️ Not verifying input values are within realistic ranges for your scenario
  • ⚠️ Entering zero or negative values where positive numbers are required
  • ⚠️ Rounding intermediate results too early in multi-step calculetions

Worked example

Calculate results using the provided input values.

The calculeted result provides the main output value.

Input guide

FieldTypical range
a1Enter value within min-max range shown.
rEnter value within min-max range shown.
nEnter value within min-max range shown.