Financial Calculators
Model a mortgage, size up a loan, or map out retirement in seconds. Sixty-plus money tools, zero spreadsheets, always free.
Mortgage & Real Estate
19 calculatorsMortgage Calculator
POPULARFull monthly payment breakdown — principal, interest, taxes, insurance, PMI, and HOA.
Open calculator →Amortization Calculator
See exactly how each payment splits between principal and interest, month by month.
Open calculator →Mortgage Amortization
NEWA lean amortization-only view of a mortgage, with a monthly/annual schedule and extra-payment savings.
Open calculator →Canadian Mortgage Calc
NEWSemi-annual compounding, CMHC insurance, and bi-weekly payment options for a Canadian mortgage.
Open calculator →UK Mortgage Calculator
NEWRepayment or interest-only payments plus a full Stamp Duty Land Tax breakdown.
Open calculator →Mortgage Payoff Calculator
Find your new payoff date and interest saved by adding extra principal payments.
Open calculator →Home Equity Loan Calculator
NEWEstimate your borrowing limit and fixed monthly payment against your home's equity.
Open calculator →HELOC Calculator
NEWModel draw-period interest and repayment-period payments on a home equity line of credit.
Open calculator →House Affordability Calculator
Work backward from income and monthly budget to a realistic home price range.
Open calculator →Refinance Calculator
Weigh a new rate and closing costs against your current loan to find your break-even point.
Open calculator →Down Payment Calculator
See how different down payment amounts change your loan size, PMI, and payment.
Open calculator →Rent vs Buy Calculator
Compare the true long-run cost of renting against owning in your market.
Open calculator →Real Estate Calculator
Cap rate, cash-on-cash return, and appreciation estimates for a property purchase.
Open calculator →Rental Property Calculator
Project net cash flow and ROI on a rental after expenses, vacancy, and financing.
Open calculator →APR Calculator
Roll fees and points into your rate to see the true annual cost of a loan offer.
Open calculator →FHA Loan Calculator
Payment and mortgage-insurance premium estimates for a government-backed FHA loan.
Open calculator →VA Mortgage Calculator
Estimate a VA loan payment, including the funding fee, for eligible service members.
Open calculator →Debt-to-Income Ratio
Check your DTI against typical lender thresholds before you apply for financing.
Open calculator →Rent Calculator
A quick rule-of-thumb figure for rent you can comfortably afford on your income.
Open calculator →Auto Loans & Leasing
3 calculatorsAuto Loan Calculator
POPULARMonthly payment and total interest for a new or used car loan.
Open calculator →Auto Lease Calculator
Estimate a monthly lease payment from residual value, money factor, and term.
Open calculator →Cash Back or Low Interest
Run the numbers on a manufacturer rebate versus a discounted financing rate.
Open calculator →Investment & Savings
14 calculatorsCompound Interest Calculator
POPULARWatch a balance grow with regular contributions and compounding over time.
Open calculator →Investment Calculator
Project a portfolio's future value from a starting balance, return rate, and contributions.
Open calculator →Mutual Fund Calculator
NEWEstimate growth on lump-sum or SIP-style mutual fund investing, net of expense ratio.
Open calculator →Savings Calculator
Find out how much a regular savings habit adds up to by a target date.
Open calculator →Interest Calculator
Compare simple and compound interest side by side on the same deposit.
Open calculator →Simple Interest Calculator
Straight-line interest on a principal, rate, and time — no compounding.
Open calculator →Interest Rate Calculator
Solve for the rate needed to turn a starting amount into a target amount.
Open calculator →CD Calculator
Maturity value of a certificate of deposit given its term and APY.
Open calculator →Bond Calculator
Price, yield, and coupon income on a fixed-income bond investment.
Open calculator →ROI Calculator
Return on investment as a percentage, from cost and current or exit value.
Open calculator →IRR Calculator
Internal rate of return across a series of uneven cash flows over time.
Open calculator →Present Value Calculator
What a future lump sum or cash-flow stream is worth in today's dollars.
Open calculator →Future Value Calculator
Project today's savings and contributions forward to a target date.
Open calculator →Average Return Calculator
Arithmetic and geometric average annual return across multiple periods.
Open calculator →Retirement Planning
9 calculatorsRetirement Calculator
POPULARProject your nest egg and check it against your target retirement income.
Open calculator →401(k) Calculator
Model contributions, employer match, and growth of a 401(k) balance over your career.
Open calculator →Roth IRA Calculator
Tax-free growth projections for a Roth IRA based on annual contributions.
Open calculator →IRA Calculator
Compare traditional IRA growth and the tax deduction against your contribution limit.
Open calculator →Social Security Calculator
Estimate a monthly benefit based on earnings history and the age you start claiming.
Open calculator →Pension Calculator
Estimate a defined-benefit pension payout from years of service and final salary.
Open calculator →Annuity Calculator
Accumulation-phase growth on a fixed or variable annuity contract.
Open calculator →Annuity Payout Calculator
Convert an annuity balance into a projected stream of periodic payments.
Open calculator →RMD Calculator
Required minimum distribution from a retirement account, based on IRS life-expectancy tables.
Open calculator →Tax & Salary
7 calculatorsIncome Tax Calculator
Estimated federal tax liability and effective rate based on income and filing status.
Open calculator →Salary Calculator
Convert between hourly, weekly, monthly, and annual pay in one step.
Open calculator →Take-Home Paycheck
Net pay after estimated federal tax, FICA, and common payroll deductions.
Open calculator →Sales Tax Calculator
Add or back out sales tax from a purchase price at any local rate.
Open calculator →VAT Calculator
NEWAdd or extract value-added tax from a gross or net price.
Open calculator →Marriage Tax Penalty
Compare combined tax filed jointly against filing separately as two single incomes.
Open calculator →Estate Tax Calculator
Rough estimate of federal estate tax exposure above the current exemption threshold.
Open calculator →Debt & Personal Loans
12 calculatorsLoan Calculator
POPULARMonthly payment and total cost for any fixed-term personal or installment loan.
Open calculator →Payment Calculator
Solve for payment, loan amount, rate, or term — whichever one you're missing.
Open calculator →Credit Card Calculator
See how long a balance takes to clear at your card's minimum payment.
Open calculator →Credit Card Payoff
A payoff timeline across several cards using the avalanche or snowball method.
Open calculator →Debt Payoff Calculator
How much faster a fixed extra payment clears any single debt balance.
Open calculator →Debt Consolidation
Compare several balances combined into one loan against your current total payment.
Open calculator →Personal Loan Calculator
Payment and interest cost on an unsecured personal loan at any term.
Open calculator →Student Loan Calculator
Standard repayment schedule and total interest across your student loan term.
Open calculator →Repayment Calculator
Compare repayment plans side by side to see the effect on total interest paid.
Open calculator →Business Loan Calculator
Payment and amortization for a term loan used to finance a business.
Open calculator →Boat Loan Calculator
Monthly payment estimate for financing a boat over a chosen loan term.
Open calculator →College Cost Calculator
Project total tuition and living costs across four years, adjusted for inflation.
Open calculator →Other Financial Tools
11 calculatorsCurrency Calculator
NEWConvert between currencies using a rate you enter, with rounding built in.
Open calculator →Inflation Calculator
See what a past or future dollar amount is worth after years of inflation.
Open calculator →Finance Calculator
A general-purpose time-value-of-money solver for payment, rate, or present value.
Open calculator →Depreciation Calculator
Straight-line or declining-balance depreciation schedule for any asset.
Open calculator →Margin Calculator
Gross margin, markup percentage, and profit from cost and selling price.
Open calculator →Payback Period Calculator
How long an investment takes to repay its initial cost from its cash flows.
Open calculator →Discount Calculator
Final price and amount saved after applying a percentage-off discount.
Open calculator →Percent Off Calculator
NEWSale prices, reverse-solve a discount rate, or apply one flat discount across a whole shopping list.
Open calculator →Commission Calculator
Commission earned from a sale amount and a flat or tiered commission rate.
Open calculator →Budget Calculator
Split monthly income across needs, wants, and savings using the 50/30/20 rule.
Open calculator →Lease Calculator
Car lease payment from MSRP, residual value, and money factor, plus a mileage-overage estimator.
Open calculator →About Our Financial Calculators
PrimeCalculator's finance section covers every major area of personal and business money management. Each calculator is built for accuracy and speed, with a clean layout that shows step-by-step working — not just a final number.
No sign-up, no subscription, and nothing you enter is saved. Pick a tool below, plug in your numbers, and see the result instantly.
How to Pick the Right Tool
Buying a Home?
Start with House Affordability to set a budget, then Mortgage Calculator for the exact payment.
Growing Savings?
Compound Interest shows growth on a lump sum; Investment Calculator adds regular contributions.
Planning Retirement?
Use Retirement Calculator for the big picture, then 401(k) and Social Security for the details.
Paying Off Debt?
Debt Payoff Calculator shows the fastest route; Debt Consolidation checks if combining helps.