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Finance

Instantané, privé et gratuit

Calculatrice FIRE.

Planifiez votre indépendance financière avec des hypothèses de dépenses et de rendement ajustées à l’inflation

Calcul sur l'appareilSans inscription
01

Saisissez vos valeurs

Les résultats se mettent à jour pendant la saisie.

Votre situation

Hypothèses du marché

4.8%à FIRE

Numéro FIRE (aujourd'hui)

1 050 000 $US

Portefeuille actuel

50 000 $US

$01 050 000 $US

Chronologie

38

Temps estimé pour FIRE : 37.1 ans (445 mois)

Âge estimé du FIRE : 67.1

Revenu mensuel durable

10 657 $US

par mois

Corpus d’objectifs

3 189 620 $US

corrigé de l'inflation

Voie accélérée

Mensuel nécessaire pendant 15 ans FIRE

4 744 $US

FEU dans

15 années

  • Les objectifs de dépenses futures sont gonflés mensuellement en utilisant votre hypothèse d’inflation.
  • Les rendements sont modélisés sous la forme d’un taux composé mensuel constant à des fins de planification.
  • Le taux de retrait est une hypothèse de planification et non un taux de sécurité garanti.

Cite this calculator

Canonical URL: https://mathify.one/fr/finance/fire

Cite as: Mathify. (2026). Calculatrice FIRE. https://mathify.one/fr/finance/fire

Use Cases

Estimate your FIRE timeline

Input your current savings, annual spending, and expected returns to see how many years until you can retire early.

Example: If you save $30k/year and spend $40k, with 7% returns, you might reach FI in 15 years.

Compare different return scenarios

Adjust return and inflation assumptions to see how conservative or aggressive your plan is.

Example: Lowering returns from 7% to 5% could add several years to your timeline.

Frequently Asked Questions

What does the FIRE calculator do?
It helps you estimate how long it will take to achieve financial independence by considering your spending, savings, and assumed investment returns, all adjusted for inflation.
How does inflation affect my FIRE plan?
Inflation reduces purchasing power over time. The calculator adjusts your spending and savings growth to reflect real returns, giving a more realistic timeline for financial independence.
What is the 4% rule in FIRE?
The 4% rule suggests you can safely withdraw 4% of your portfolio annually in retirement. This calculator uses your return assumptions to model similar withdrawal sustainability.

Tips & Common Mistakes

Tips

  • Use realistic inflation rates (2-3%) to avoid overestimating future purchasing power.
  • Consider your spending changes in retirement; healthcare and travel may differ.
  • Revisit your assumptions annually as your savings and expenses evolve.
  • Remember that returns are not guaranteed; use conservative estimates for safety.

Common Mistakes to Avoid

  • Ignoring inflation and using nominal returns, which overstates growth.
  • Assuming constant spending without accounting for lifestyle changes.
  • Using overly optimistic return rates that don't reflect market volatility.

Last updated: August 13, 2026