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FlashFish.net

Calculators

Each one runs in your browser, with a shareable link to the result and no signup.

  • Expense Tracker

    Split bills across a group, record who paid, and see who owes whom. Shareable link, no signup.

  • 401(k) projection

    Project your balance at retirement from contributions, match and growth.

  • Mutual fund & SIP returns

    What a monthly SIP or a lump-sum mutual fund investment compounds to over time.

  • AdSense revenue

    Estimate monthly and annual AdSense earnings from page views, CTR and CPC.

  • Income tax refund

    Estimate an Indian income tax refund or balance due, FY 2025-26 new regime.

  • Safe Harbor 401(k)

    Employer contribution requirements under safe harbor rules.

  • Salary and mortgage

    What a given income can support in monthly repayments.