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52 free professional calculators for finance, health, math, and everyday life — fast, accurate, and completely free.

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Financial Calculators
Highest revenue tools — mortgage, loans, retirement & investing
36 tools
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Mortgage Calculator
Monthly payment, PITI, amortization schedule for any US home loan.
Home LoanPITI
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Salary Calculator
Take-home pay after federal taxes, FICA & 401(k) deductions.
PaycheckTax
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Loan Calculator
Monthly payments for personal, auto, and student loans.
PersonalStudent
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Income Tax Calculator
2025 federal tax owed, effective rate & bracket breakdown for any income.
Federal TaxIRS
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Auto Loan Calculator
Car payment with trade-in, sales tax & true cost of ownership.
Car LoanTrade-In
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Refinance Calculator
Find your break-even point and total savings from refinancing your mortgage.
RefiSavings
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Retirement / 401(k)
Project your retirement balance with employer matching & inflation.
401kRetirement
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Compound Interest
See how investments grow over time with monthly contributions.
InvestingSavings
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Credit Card Calculator
Find out how long to pay off your credit card and how much interest you'll pay.
Credit CardInterest
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House Affordability
Find your maximum home price based on income, debts, and down payment.
HomeDTI
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Investment Calculator
Project investment growth with monthly contributions, inflation, and tax adjustments.
InvestingGrowth
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HELOC Calculator
Draw period & repayment payments, payment shock & amortization schedule.
Home EquityHELOC
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Sales Tax Calculator
Add sales tax or find pre-tax price. Rates for all 50 US states.
Sales TaxReverse
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Debt Payoff Calculator
See exactly when you'll be debt-free and how much interest you'll save.
DebtPayoff
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Student Loan Calculator
Compare repayment plans and calculate payoff date for student loans.
Student LoanIDR
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Personal Loan Calculator
Monthly payment, total interest, and APR including origination fees.
PersonalAPR
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ROI Calculator
Return on investment, annualized CAGR & profit/loss for any investment.
ROICAGR
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Roth IRA Calculator
Project tax-free Roth IRA growth and compare to traditional IRA tax savings.
Roth IRATax-Free
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FIRE Calculator
Your Financial Independence number, years to FIRE & projected retire date.
FIREFI
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Currency Converter
Convert between 28 major world currencies — USD, EUR, GBP, JPY & more.
ForexExchange
Convert →
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Take-Home Paycheck
Exact take-home pay per paycheck after taxes & deductions.
PaycheckTax
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Amortization Calculator
Full amortization schedule with year-by-year breakdown and extra payment savings.
ScheduleLoan
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401K Calculator
Project your 401(k) balance with employer matching and inflation adjustment.
401kRetirement
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Home Equity Loan
Calculate payments and available equity for a fixed home equity loan.
EquityFixed
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Mortgage Recast
Lower your monthly payment with a lump-sum paydown — no refinancing needed.
RecastSavings
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Rental Property
Analyze cash flow, cap rate, and cash-on-cash return for any rental property.
Cap RateCash Flow
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Auto Lease Calculator
Calculate monthly lease payment using money factor, residual value, and fees.
LeaseAuto
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CD Calculator
Calculate CD interest earnings and compare rates across different term lengths.
CDAPY
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IRA Calculator
Compare Traditional vs Roth IRA growth and lifetime tax impact.
IRATax
Compare →
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Future Value Calculator
Calculate the future value of any investment with compounding and contributions.
FVCompound
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Inflation Calculator
Adjust dollar amounts for inflation and see how purchasing power changes over time.
InflationCPI
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Rent vs Buy Calculator
Break-even point, true 10-year cost & opportunity cost comparison.
Break-EvenHousing
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Debt Consolidation
Compare keeping separate debts vs consolidating into one lower-rate loan.
ConsolidateSavings
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Debt-to-Income Ratio
Calculate your DTI ratio and see if you qualify for a mortgage or loan.
DTIQualify
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Coast FIRE Calculator
Find the amount to invest now so compounding covers your retirement goal.
Coast FIREFI
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Gross Margin Calculator
Calculate gross profit margin, markup, and cost ratio for any product or service.
MarginMarkup
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View all 36 Financial Calculators →
Why True Value Calc

Built for Accuracy, By Design

All 52 calculators use clinically validated formulas, current tax data, and industry-standard benchmarks so every result you get is one you can trust.

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Instant Results

Results appear as you type — no page reloads, no waiting, no server calls.

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100% Private

All calculations run in your browser. Nothing is sent to any server — ever.

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Validated Formulas

Every calculator uses established standards — IRS tax brackets, clinical health formulas, and current financial benchmarks.