Comparaisons
Intérêts vs. Intérêts composés
Compare Intérêts and Intérêts composés side by side. When to use each, key differences, and a clear verdict.
Quand utiliser Intérêts
Use simple interest for short-term loans, car loans, or when interest is paid only on the original principal. Predictable, easy to calculate.
Quand utiliser Intérêts composés
Use compound interest for savings accounts, retirement accounts, long-term investments. Interest earns interest, so growth accelerates over time.
Side-by-side comparison
| Caractéristique | Intérêts | Intérêts composés |
|---|---|---|
| Interest on interest? | No | Yes (the core feature) |
| Growth pattern | Linear | Exponential |
| Best for | Auto loans, short-term debt | Retirement, long-term savings |
| Rule of 72 | Does not apply | Doubling time ≈ 72 / rate |
| At 7% for 30 years on $10k | $10k + $21k = $31k | $10k → $76k (exponential) |
Le verdict
Compound interest is the most powerful force in personal finance. Albert Einstein (apparently) called it the "eighth wonder of the world." Use it as an investor; watch out for it as a borrower.
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Read comparison →Last updated: June 15, 2026 • Reviewed by: CalcxApp editorial team