Categories · 32 tools
Finance Calculators
Mortgages, loans, interest and investing.
Mortgage
Calculate your monthly mortgage payment from the home price, down payment, interest rate and term — and see the full amortization: how much you pay in interest and how slowly the balance falls.
CalculateCompound Interest
See how compound interest grows your money over time, with an optional monthly contribution. Compare what you put in against what the interest adds.
CalculatePersonal Loan
Work out the monthly payment on a personal loan from the amount, APR and term, and see the total interest you will pay over the life of the loan.
CalculateRetirement
Estimate the nest egg you will have at retirement from your current savings, monthly contribution and expected return — and the monthly income it could provide using the 4% rule.
CalculateInflation
See how inflation erodes money over time. Enter an amount, an annual inflation rate and a number of years to find the future cost and how much buying power is lost.
CalculateCD
Calculate what a certificate of deposit (CD) is worth at maturity from the deposit, APY and term. See the interest earned and how the balance grows month by month.
CalculateHome Affordability
Find out how much house you can afford from your income, monthly debts and down payment, using the 28/36 rule lenders apply. See the maximum price, loan and payment.
CalculateAmortization
Build a full amortization schedule for any fixed-rate loan. See the year-by-year split of interest and principal, the balance remaining and the total interest paid.
CalculateAuto Loan
Calculate your monthly car payment from the price, down payment, APR and loan term, and see how much interest you pay over the life of the loan.
CalculateLoan Payment
Calculate the monthly payment on any loan from the amount, the APR and the term, and see the total interest and total of payments.
CalculateSimple Interest
Calculate simple interest: enter the principal, the annual rate and the time to see the interest and the total. Understand how it differs from compound interest.
CalculateFuture Value
Project what a sum today will be worth in the future with compound growth: enter the present value, the rate and the time to see the future value and interest earned.
CalculatePresent Value
Bring a future sum back to today: enter the amount, the discount rate and the time to see what it is worth now. Ideal for comparing offers and cash vs. installments.
CalculateSavings
See how a savings account grows from a starting balance, monthly deposits and an annual rate (APY). Compare what you put in against the interest earned.
CalculateInterest Rate
Find the interest rate baked into a loan or payment plan from the amount financed, the payment and the number of payments — as a monthly and an effective annual rate.
CalculateCredit Card Interest
See how long it takes to pay off a credit card balance and how much interest it costs, from the balance, the APR and your monthly payment.
CalculateDebt Payoff
See how much sooner you can be debt-free — and how much interest you save — by adding an extra amount to your monthly payment.
CalculateLoan Payoff
Find the amount to pay off a loan today and how much interest you save versus continuing the payments, from the payment, the rate and the payments remaining.
CalculateBudget
Split your take-home pay into needs, wants and savings with the 50/30/20 rule. Enter your monthly income to see how much to put in each bucket.
CalculateDividend
Calculate dividend yield and the income a holding pays: enter the share price, the annual dividend per share and the number of shares for the yearly and monthly income.
CalculateFIRE Number
Find your FIRE number — the nest egg that lets investment income cover your expenses — and how many years to reach it, using the 4% rule and your monthly investing.
CalculateCar Affordability
Find out how much car you can afford from your income, down payment, APR and loan term — keeping the payment to a sensible share of your monthly income.
CalculateRent vs. Buy
Compare the monthly cost of buying a home — mortgage, property tax and maintenance — against renting, to see which is cheaper month to month.
CalculateEmergency Fund
Work out how big your emergency fund should be based on your monthly expenses, and how many months of saving it takes to get there.
CalculateLate Payment Interest
Calculate what an overdue invoice or bill costs: a flat late fee plus monthly interest (finance charge) prorated for the days past due.
CalculateRate Conversion
Convert interest rates between periods — monthly to annual and back — using the true effective rate with compounding, not a simple multiplication by 12.
CalculateMoney Challenge
Plan the 52-week money challenge: save an amount that grows every week and see the total after one year. Customize the starting deposit and the weekly increase.
CalculateRefinance
See if refinancing pays off: new monthly payment, monthly savings, how long the closing costs take to break even, and the total cost of each loan until payoff.
CalculateDebt Snowball
Plan the debt snowball: pay minimums on everything, throw the extra at the smallest balance, and roll each freed payment into the next debt. See your payoff order and months to debt-free.
CalculateAPR vs. APY
Convert APR to APY and back for any compounding frequency, and see why the effective yield is always higher than the nominal rate when interest compounds.
Calculate