Financial Calculators
Mortgages, loans, investments, savings, and cash-flow analysis - every money calculation you need. Standard financial formulas, amortization schedules, currency support, and step-by-step breakdowns.
23
Calculators
20+
Currencies
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Loans & Mortgages
Home loans, auto loans, payments, and payoff strategies
Mortgage Calculator
Monthly payment with P&I, taxes, insurance, PMI, and HOA. Full amortization schedule, extra payment scenarios, and 20+ currencies.
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Loan Calculator
Monthly payment, total interest, and full amortization for personal, student, and business loans. Supports extra payments and 20 currencies.
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Auto Loan Calculator
Car loan payment with price, trade-in, down payment, tax, and fees. Compare loan terms and total cost of ownership.
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Student Loan Calculator
Monthly payment, total interest, and payoff date for standard, graduated, and extended plans, with grace period interest and extra payments.
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Credit Card Calculator
Payoff time, total interest, required payment for a target date, and minimum payment estimates with a month by month schedule.
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Debt Payoff Calculator
Compare avalanche and snowball plans across multiple debts with extra payments, rolled payments, interest totals, and milestones.
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House Affordability Calculator
Maximum home price from income, debts, down payment, and DTI limits. Budget mode and conventional/FHA/VA loan types.
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Mortgage Payoff Calculator
See how extra payments, biweekly schedules, or lump sums reduce total interest and shorten your loan term.
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Amortization Calculator
Full amortization table showing each payment split between principal and interest, with running balance and printable schedule.
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Mortgage Calculator Tool
Advanced mortgage analysis with detailed PITI breakdown, escrow estimates, and comparison modes for different loan scenarios.
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Mortgage Calculator Guide
Complete guide to mortgage math: payment formula, PITI breakdown, amortization, PMI, escrow, and 15 vs 30 year comparisons.
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Savings & Investment
Compound growth, retirement planning, and fund returns
Investment Calculator
Project portfolio growth with initial deposit, monthly contributions, return rate, and inflation adjustment. Chart and year-by-year table.
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Savings Calculator
Reach a savings goal or grow a lump sum with compound interest. Solve for end balance, monthly deposit, or time required.
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CD Calculator
Certificate of deposit interest and maturity value from APY or rate, with after tax, inflation adjusted, and early withdrawal results.
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Compound Interest Calculator
Ending balance, APY, growth schedule, and compound vs simple comparison. All frequencies, deposits, tax, and inflation.
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Annuity Calculator
Present value, future value, required deposit, or fixed term payout. Ordinary vs annuity due with schedule and chart.
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Retirement Calculator
Project nest egg, required savings, 4% rule income, inflation adjusted balance, and monthly contribution needed to stay on track.
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401k Calculator
Employee deferrals, employer match, 2026 IRS limits and catch up rules, growth to retirement, Traditional vs Roth after tax view.
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Roth IRA Calculator
Tax free growth to retirement, 2026 contribution limits, income phase out eligibility, catch up contributions, and Roth vs taxable savings.
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Social Security Calculator
Estimate your benefit from earnings, compare claiming at every age from 62 to 70, and see break even ages and spousal benefits.
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Inflation Calculator
Purchasing power, future cost of goods, CPI index conversion, and real investment return after inflation.
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Income Tax Calculator
2026 IRS brackets, standard deduction, marginal and effective rates, bracket breakdown, and optional employee FICA take home.
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Sales Tax Calculator
Add tax to a price, remove tax from a total, or find the rate. Combines state and local percents with quantity and discount.
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Currency Calculator
Convert 36 currencies at live mid market rates, see what bank and card fees really cost, and check the 30 day rate trend.
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Payment Calculator
Find the payment for any loan term, or how long a fixed payment takes to clear a balance, with total interest and a yearly schedule.
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Tip Calculator
Tip percent, sales tax, service charges, and equal bill splits with pre tax or post tax tip base and rate comparison chart.
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Salary Calculator
Convert hourly, weekly, biweekly, monthly, and annual pay. Optional take home estimate with federal tax, FICA, and state tax.
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Rent Calculator
Estimate affordable rent from income and debts with 25%, 30%, and 33% rules. Check listings and split roommate shares.
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Interest Rate Calculator
Solve for growth rate from balances, find loan APR from payments, and convert APR to APY with compounding.
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Interest Calculator
Simple and compound interest with daily, monthly, quarterly, or annual compounding. Shows effective annual rate (APY).
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Mutual Fund Calculator
SIP and lump-sum mutual fund returns with expense ratio adjustment. Projects corpus value and total gains over time.
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Average Return Calculator
Arithmetic vs geometric (CAGR) average returns. Explains why averaging yearly percentages gives misleading results.
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Bond Calculator
Bond price, yield to maturity, current yield, and duration from face value, coupon rate, and market price.
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Analysis & Valuation
ROI, IRR, NPV, payback, and time value of money
Finance Calculator (TVM)
Solve for FV, PV, PMT, I/Y, or N - equivalent to BA II Plus and HP 12C financial calculators.
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ROI Calculator
Return on investment as a percentage with optional annualized ROI for multi-year holdings.
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IRR Calculator
Internal rate of return from a series of cash flows. Compare projects and investment opportunities.
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Present Value Calculator
Discount future amounts to today's value. Single sum and annuity present value modes.
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Payback Period Calculator
Simple and discounted payback period for capital investments. Shows when cumulative cash flows break even.
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How to Use These Calculators
Start with the calculator that matches your question. Comparing home loans? Use the Mortgage Calculator first, then House Affordability to see what fits your budget. Paying off debt? Run the Loan Calculator, then Mortgage Payoff to model extra payments.
For major purchases
Mortgage and Auto Loan calculators include taxes, insurance, and fees - not just principal and interest. Always compare the total cost over the full term, not just the monthly payment.
For investing
Use Investment and Savings calculators for long-term projections. IRR and ROI calculators help compare opportunities with different cash-flow patterns. Remember: projected returns are hypothetical.
Many calculators support 20+ currencies. Select your currency in the top bar before entering amounts for accurate formatting and symbols.
Key Financial Formulas
Loan payment (PMT)
Monthly payment = P ร [r(1+r)โฟ] รท [(1+r)โฟ - 1], where P is principal, r is monthly rate, and n is number of payments. This is the standard amortizing loan formula used by mortgage and auto loan calculators.
Compound interest
A = P(1 + r/n)^(nt) - final amount A from principal P, annual rate r, compounded n times per year for t years. The Interest and Savings calculators use this with various compounding frequencies.
Time value of money
The Finance Calculator (TVM) solves the five-variable model: FV, PV, PMT, I/Y, and N. Any one variable can be computed when the other four are known - the foundation of corporate finance and investment analysis.
All results are estimates for informational purposes only. They are not financial, tax, or legal advice. Rates, fees, and tax rules vary. Consult a qualified professional before making financial decisions.