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Finance
Savings, budget, payment, interest, and comparison tools.
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What this category helps with
- Loan, mortgage, interest, tax, salary, retirement, and investment estimates from clear assumptions.
- Scenario comparison before you ask a lender, payroll provider, tax professional, or financial adviser.
- Transparent warnings when a result is a planning estimate rather than a quote or recommendation.
Start with these tools
Mortgage Calculator Estimate monthly principal, interest, taxes, insurance, PMI, and HOA costs. Loan Calculator Estimate a fixed monthly loan payment and total interest. Auto Loan Calculator Estimate a vehicle loan payment with tax, fees, down payment, and trade-in. Interest Calculator Calculate simple or compound interest from principal, rate, and time. Payment Calculator Find a fixed monthly payment from amount, rate, and term. Retirement Calculator Project retirement savings from current balance, monthly contributions, and return.
All finance tools
Open a tool, check the examples, then jump to the matching guide when you need more context.
Mortgage Calculator Estimate monthly principal, interest, taxes, insurance, PMI, and HOA costs. Open Loan Calculator Estimate a fixed monthly loan payment and total interest. Open Auto Loan Calculator Estimate a vehicle loan payment with tax, fees, down payment, and trade-in. Open Interest Calculator Calculate simple or compound interest from principal, rate, and time. Open Payment Calculator Find a fixed monthly payment from amount, rate, and term. Open Retirement Calculator Project retirement savings from current balance, monthly contributions, and return. Open Amortization Calculator Estimate payoff time, total interest, and extra-payment savings. Open Investment Calculator Project investment growth from starting amount, monthly deposits, and return. Open Inflation Calculator Estimate future cost and buying power from an annual inflation rate. Open Finance Calculator Project a general balance from starting amount, monthly change, rate, and time. Open Income Tax Calculator Estimate 2026 U.S. federal income tax from income, filing status, deduction, and credits. Open Compound Interest Calculator Estimate compound growth with deposits, rate, time, and compounding frequency. Open Salary Calculator Convert annual salary to monthly, biweekly, weekly, daily, and hourly pay. Open Interest Rate Calculator Estimate annual interest rate from principal, payment, and term. Open Sales Tax Calculator Calculate sales tax amount and total from subtotal and tax rate. Open
Guides for this category
Each guide uses the matching Access Free Tools calculator as the example.
How to use the Mortgage Calculator
Learn how to estimate a mortgage payment with principal, interest, taxes, insurance, PMI, and HOA costs.
Read guideHow to use the Loan Calculator
Learn how fixed loan payments are estimated from principal, interest rate, and term.
Read guideHow to use the Auto Loan Calculator
Learn how vehicle price, taxes, fees, down payment, and trade-in affect an auto loan payment.
Read guideHow to use the Interest Calculator
Learn the difference between simple interest and compound interest with clear examples.
Read guideHow to use the Payment Calculator
Learn how to estimate a fixed monthly payment and total interest from a balance, rate, and term.
Read guideHow to use the Retirement Calculator
Learn how current savings, monthly contributions, time, and return assumptions shape a retirement projection.
Read guideHow to use the Amortization Calculator
Learn how amortization reduces a loan balance and how extra payments can save interest.
Read guideHow to use the Investment Calculator
Learn how starting amount, monthly deposits, return, and time create an investment projection.
Read guideHow to use the Inflation Calculator
Learn how an annual inflation rate changes future cost and present buying power.
Read guide