Financial Calculators
Simple financial calculators for estimating loan payments, sales tax, amortization schedules, inflation, interest, investment growth, mortgages, and savings.
Use these tools to estimate fixed-rate loan payments, sales tax and final prices, build amortization tables, compare interest, convert U.S. dollar purchasing power between dates, and project investment value.
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Monthly payment and amortization
Mortgage Calculator: Use this for home loans with mortgage-specific costs such as taxes, insurance, PMI, and HOA dues.
Loan payment and amortization
Loan Calculator: Use this to estimate a fixed-rate loan payment, total interest, payoff date, and amortization schedule.
Amortization schedule
Amortization Calculator: Use this when the monthly payment table, payoff calendar, balance chart, and principal-interest split are the main focus.
Vehicle loan payment
Auto Loan Calculator: Use this to estimate a car payment with down payment, trade-in, sales tax, fees, interest, and amortization.
Sales tax and final price
Sales Tax Calculator: Use this to add sales tax to a purchase or extract included tax using a state estimate or custom rate.
Student loan repayment
Student Loan Calculator: Use this to estimate fixed-rate student loan payments, total interest, payoff date, and extra-payment savings.
Margin and markup
Margin Calculator: Use this to calculate profit margin, markup, gross profit, or selling price from cost.
Simple or compound interest
Interest Calculator: Use this to estimate interest from a starting principal, annual rate, time, tax, and inflation.
U.S. dollar inflation
Inflation Calculator: Use this to compare the purchasing power of a U.S. dollar amount between two months using official CPI-U data.
Recurring contributions and future value
Investment Calculator: Use this to project investment growth from a starting balance, regular contributions, expected return, taxes, and inflation.
Personal loan payment
Personal Loan Calculator: Use this to estimate a personal loan payment, total interest, origination fee impact, and repayment schedule.
FAQ
Use the mortgage calculator for home loans, the loan calculators for repayment estimates, the margin calculator for pricing, the interest calculator for simple or compound interest, the inflation calculator for U.S. dollar purchasing power, and the investment calculator for recurring contributions and future value.
Compound interest is interest earned on the original principal plus interest that has already been added to the balance.
Simple interest is calculated only on the original principal. Compound interest can grow faster because previously earned interest can also earn interest.
An investment calculator estimates future value from a starting amount, recurring contributions, time, and an assumed annual return.
The loan calculator estimates a fixed monthly payment, total interest, total paid, payoff date, and amortization schedule from the loan amount, term, and interest rate.
The amortization calculator focuses on the payment schedule, showing how each payment is split between interest and principal and how the balance falls over time.
The auto loan calculator estimates amount financed and monthly payment from vehicle price, down payment, trade-in value, sales tax, fees, interest rate, and term.
The sales tax calculator estimates sales tax and final price from a pretax amount and tax rate. It can also extract included tax from a tax-inclusive total.
The margin calculator estimates gross profit, profit margin, markup, and target selling price from cost and price inputs.
The student loan calculator estimates a fixed monthly payment, total interest, total repaid, payoff date, amortization schedule, and possible savings from extra monthly payments.
The personal loan calculator estimates monthly payment, total interest, total repayment, payoff date, and estimated net funds after an optional origination fee.
The mortgage calculator estimates monthly principal and interest, total interest, payoff date, and amortization. Detailed mode can also include taxes, insurance, PMI, HOA, and other recurring costs.
No. Financial calculator results are educational estimates based on the numbers you enter. They are not financial or tax advice and do not guarantee investment, savings, or loan outcomes.