Utilix

Finance Calculators

Plan investments, loans, trades and compounding with fast, accurate calculators — SIP, EMI, brokerage, compound interest and more.

Featured · 5 tools

The FIRE Calculator Toolkit

Find your FIRE number, track progress monthly, check Coast FIRE, compare Lean / Fat / Barista flavors, and stress-test your withdrawals — all in one place.

Open FIRE hub
  1. 01FIRE

    Chasing FIRE?

  2. 02FIRE Flavors

    Which FIRE fits you?

  3. 03FIRE Progress

    Am I on track for FIRE?

  4. 04Coast FIRE

    Ready to coast?

  5. 05Withdrawal

    Already retired?

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Common questions

Quick answers about Utilix finance calculators.

  • A full FIRE toolkit (5 calculators) plus tools to plan retirement, model mortgages and loans, project investment growth and analyse trading costs — Mortgage, 401(k), Retirement, Loan, Investment, Brokerage, Compound Interest and Salary Hike.

  • Open the FIRE Calculators hub at /finance/fire. It walks you through the five-step journey: set your FIRE number, pick a flavor (Lean / Regular / Fat / Barista), track your monthly progress, check Coast FIRE, then stress-test your withdrawal plan.

  • No. They use the assumptions you provide (rate, term, amount). All math runs locally in your browser — nothing is sent to a server.

  • Buying a home? Start with the Mortgage calculator. Saving for retirement in the US? Use 401(k) and Retirement together. Comparing loan offers? Use Loan. For long-term investing in funds or ETFs, use Investment or Compound Interest.