Financial

How to choose a financial calculator

Pick the tool that matches your question, read the how-it-works section on that page for assumptions and limits, then adjust inputs until the scenario looks like your real numbers. Results are for education and planning—not personalized professional advice.

• Compound Interest Calculator — Compare simple vs compound growth with adjustable compounding frequency and contributions.
• Mortgage Calculator — Estimate a fixed monthly mortgage payment and see how interest vs principal change over the loan term.
• Savings Goal Calculator — Determine how much to save monthly to reach your target savings goal with compound interest.
• Mortgage Payoff Calculator — See how extra monthly or lump-sum payments shave years and thousands of dollars in interest off your mortgage.
• Credit Card Payoff Calculator — Calculate how long it will take to eliminate credit card balances or the monthly payment needed to be debt-free.
• Loan Payment Calculator — Calculate fixed monthly payments for personal loans and similar amortizing debt from amount, rate, and term.
• Auto Loan Calculator — Project car payments after down payment, trade-in, tax, and fees — then see total interest over the term.
• Salary to Hourly Calculator — Convert annual salary into hourly wage, biweekly, monthly, or daily pay based on work schedule.
• Tip Calculator — Calculate tip amounts, split bills easily among people, and see the exact cost per person.
• Discount Calculator — Calculate sale prices, total dollar savings, and effective percentage off with single or stacked coupons.
• Pay Off Calculator — Free pay off calculator for mortgages and loans — model extra monthly or biweekly payments to see interest saved.
• Investment Calculator — Solve for ending balance, return rate, starting amount, time horizon, or contribution with an annual growth schedule.
• Early Retirement Calculator — Estimate years to financial independence from your savings rate, nest egg, investment return, and withdrawal rate.
• Return Metrics Calculator — Compute CAGR, effective annual rate (APY), and Rule of 72 estimates for investment and savings scenarios.
• Credit Card Interest Calculator — Estimate credit card interest on an unpaid balance from APR, average daily balance, and billing-cycle length.
• House Affordability Calculator — Estimate a home budget from income, debts, or a monthly housing number using common DTI guidelines and PMI rules.