Free calculators for money decisions
Estimate payments, compare loan terms, model investment growth, and check retirement assumptions. The calculators run in your browser and do not require an account.
Loan Calculator
Calculate monthly payments, total interest, and amortization schedules for mortgages, auto loans, and personal loans.
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Investment Calculator
Model investment growth with compound interest, recurring contributions, and goal planning.
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Retirement Calculator
Estimate savings targets, retirement income, withdrawals, and inflation-adjusted purchasing power.
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Mortgage Calculator
Estimate monthly mortgage costs with PMI, taxes, insurance, HOA fees, and extra payments.
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Why these calculators are here
Standard formulas
The calculators use common loan, mortgage, investment, and retirement math.
Browser-side results
Change assumptions and see the result immediately. Most inputs are processed locally.
No account required
Use the calculators without creating an account or sending us your planning inputs.
Start with the assumptions
Good planning starts with knowing which inputs matter. These calculators let you test loan terms, contribution amounts, interest rates, and withdrawal assumptions without setting up an account.
Common use cases
- Planning a home purchase with our loan calculator
- Comparing investment strategies with compound interest calculations
- Determining optimal loan terms and payment frequencies
- Setting realistic savings goals for retirement
- Understanding the impact of extra payments on loans
Use them as a starting point, not as financial advice. For tax, investment, or mortgage decisions with real money involved, talk with a qualified professional.
Planning money is step one. Reading the market is step two.
These calculators handle the plan. QuantConomy adds real-time market intelligence on top — markets, filings, macro data, and news in one place.