---
title: "FIRE Calculator | Estimate Your Financial Independence Age"
description: "Estimate your FIRE number, savings rate, and financial independence age with a free, private calculator using your income, spending, and investment assumptions."
locale: "en"
kind: "landing-page"
canonical_url: "https://www.fignis.io/tools/fire-calculator/"
html_url: "https://www.fignis.io/tools/fire-calculator/"
markdown_url: "https://www.fignis.io/markdown/en/tools/fire-calculator.md"
last_updated: "2026-08-06"
---

# FIRE Calculator | Estimate Your Financial Independence Age

> Estimate your FIRE number, savings rate, and financial independence age with a free, private calculator using your income, spending, and investment assumptions.

## Direct answer
Connect what you have, what you invest, and the life you want to fund. The calculator estimates your FIRE number and the age your portfolio could reach it.

## Know what your FIRE date depends on
FIRE is not one magic number. These five ideas show how spending, saving, returns, and timing shape the result.

### Your FIRE number
It is the portfolio needed to cover your yearly spending gap. Gap = spending minus other retirement income. At 4%, 40,000 a year needs about 1 million.

### Your future spending
The target follows what you plan to spend, not what you earn today. Housing, healthcare, taxes, and travel can move it.

### Your savings rate
This is the share of take-home pay you invest. Invest more or spend less later, and you may reach the target sooner.

### Real return
Real return is growth after inflation. A 7% return with 2% inflation is about 5% before fees and taxes.

### Bad years at the wrong time
Two portfolios can have the same average return but different outcomes. Losses early in retirement hurt more while you are withdrawing.

## Make the target fit real life
Use the result to find the levers you can control. Then test spending, investing, taxes, housing, and life events together.

## Disclosure
Illustration only. It uses average returns and inflation and does not include taxes, fees, account rules, or different return timing.