Personal Finance Calculators
Last updated: September 2026
Mortgage Payment Calculator
Estimate the full monthly cost of owning a home β principal, interest, property tax, and homeowner's insurance β bundled into the single number lenders call PITI.
Debt Payoff Calculator
Calculate how many months it takes to pay off a debt given its balance, APR, minimum payment, any extra monthly payment, and whether you keep the payment fixed or raise it each year.
Investment Return Calculator
Calculate the annualized rate of return on an investment given its initial cost, additional contributions, final value, dividends received, and holding period.
Budget Allocation Calculator
Calculate how much of your monthly income is left for savings and debt payments after allocating percentages to needs and wants.
Tax Withholding Calculator
Estimate how much federal income tax should be withheld each month under the current (2020 and later) Form W-4, using 2026 tax brackets and standard deductions, your filing status, dependent credits, extra deductions, and any extra withholding you request.
Budget Planner Calculator
Apply the 50/30/20 rule to your monthly take-home income and see exactly how many dollars go to needs, wants, and savings after existing debt payments.
Emergency Fund Calculator
Calculate how many months it takes to reach your emergency-fund goal given your essential monthly expenses, target months of coverage, current savings, monthly contribution, and a small interest rate on the parked cash.
Loan Comparison Calculator
Compare two loan offers side-by-side by monthly payment or total interest paid.
401(k) Contribution Calculator
Estimate your annual 401(k) contributions, employer matching dollars, and immediate tax savings based on your salary and plan details.
House Affordability Calculator
Estimate the maximum home price you can afford based on your gross income, monthly debts, available down payment, mortgage rate, and a lender-standard debt-to-income ratio.
Savings Rate Calculator
Calculate the share of your take-home pay that you save each month.
Credit Card Payoff Calculator
Estimate how many months it takes to pay off a credit-card balance with a fixed monthly payment, given the card's APR.
Auto Loan Calculator
Calculate the monthly payment on a car loan, factoring in sales tax, down payment, and a trade-in.
Car Affordability Calculator
Calculate the maximum car price you can afford based on your income, existing expenses, insurance costs, and loan terms.
Retirement Withdrawal Calculator
Estimate how much you can safely withdraw from your retirement portfolio each year, adjusted for inflation.
Investment Portfolio Allocation Calculator
Get a starting-point stock-allocation percentage for your investment portfolio based on age, risk tolerance, and time horizon.
401(k) Retirement Calculator
Projects your 401(k) balance at retirement by combining your current balance, salary contributions, and employer matching, compounded over time.
Student Loan Forgiveness Calculator
Estimate how much of your federal student loan balance could be forgiven under IBR or the new Repayment Assistance Plan (RAP), after 10 years with PSLF or 20 to 30 years otherwise, using a month-by-month projection that includes interest.
Credit Score Impact Calculator
Estimate how much your credit score could change by lowering your credit utilization.
Compound Interest Calculator
Project the future value of an investment given a lump-sum principal, recurring monthly contributions, an annual rate, and a compounding frequency.
Retirement Savings Calculator
Projects the total nest egg you'll have at retirement based on your current savings, monthly contributions, and an expected annual return (7% if left blank).
Car Loan Calculator
Calculate your exact monthly auto loan payment after factoring in down payment and trade-in value, and see the total interest you'll pay over the loan term.
Savings Goal Calculator
Calculate the monthly amount you must save to reach a specific goal by a deadline, accounting for interest earned and inflation eroding the target.
Loan Amortization Calculator
Calculate the periodic payment on an amortizing loan given the principal, annual interest rate, term in years, and payment frequency.
Home Affordability Calculator
Find the maximum home price you can afford based on your gross income, monthly debts, down payment, mortgage rate, and target debt-to-income ratio.