8 free calculators · every formula shown · nothing saved
Mortgages, loans, taxes, and retirement math — worked out in full, the way a real ledger would show it. No account, no app, no signup. Pick a calculator below.
Monthly payment, total interest, and a full amortization schedule.
Open calculator → 02Principal, interest, taxes, insurance, PMI, and HOA in one monthly number.
Open calculator → 03See exactly how long a balance takes to clear at your payment.
Open calculator → 042026 federal brackets, applied step by step to your income.
Open calculator → 05Where your savings and contributions land you by retirement age.
Open calculator → 06Compound growth on a lump sum plus monthly contributions.
Open calculator → 07Your FIRE number, and how long the road is at your current pace.
Open calculator → 08Everything you own, minus everything you owe.
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