Finance Calculators
Explore free online finance calculators for mortgages, loans, auto financing, savings, compound interest, debt and retirement planning. Choose a tool to compare a financial scenario with clear inputs and transparent results.
Mortgage Calculator
Estimate a home-loan payment with principal, interest and optional ownership costs.
Loan Calculator
Calculate payments, total interest and payoff details for a fixed-rate installment loan.
Auto Loan Calculator
Estimate vehicle payments using price, down payment, trade-in, tax, rate and term.
Compound Interest Calculator
Project account growth from an initial balance, contributions, rate and compounding schedule.
Savings Calculator
Estimate the deposit needed for a goal and compare a planned deposit using APY.
Amortization Calculator
Generate a complete principal, interest, extra-payment and remaining-balance schedule.
Home Affordability Calculator
Estimate a home price from custom DTI targets, income, debts and complete housing costs.
Retirement Calculator
Project retirement savings and compare contributions, growth, inflation and income goals.
401(k) Calculator
Estimate workplace retirement growth with contributions, employer match and assumed returns.
Inflation Calculator
Compare purchasing power by year with historical CPI for the US, UK, Canada and Australia. Calculate inflation-adjusted amounts and see the steps.
Simple Interest Calculator
Calculate simple interest and final amount for years, months, days or between two dates. Choose Actual/365 or Actual/360 and follow your calculation steps.
Mortgage Recast Calculator
Calculate your mortgage payment after a lump-sum recast. Compare extra payments, fees and interest savings with monthly schedules and a CSV download.
Interest-Only Mortgage Calculator
Calculate interest-only mortgage payments, a final balloon or later repayments. Compare total interest and view monthly schedules with a CSV download.
Gold Value Calculator
Estimate gold melt value in USD from weight, karat or assay, and your price per gram or troy ounce. See fine gold weight and a purity diagram.
About Our Finance Calculators
This category brings together practical tools for common U.S. personal-finance questions. The calculators are designed to turn scenario inputs—such as principal, interest rate, term, contribution, income or debt—into transparent estimates that are easier to compare.
How to use these calculators
Select the calculator that matches your question, enter the requested values and review both the main result and its detailed breakdown. Use a current rate or quote when relevant, check whether payments occur monthly or on another schedule, and compare multiple scenarios before making a decision.
Why estimates can differ
Financial estimates can change when tools use different compounding conventions, payment timing, fees, taxes, insurance assumptions or rounding rules. Actual lender, bank, card issuer or investment-provider figures may also reflect eligibility requirements and terms that a general calculator cannot know.
- A mortgage or loan payment may exclude taxes, insurance, fees or variable-rate changes unless those inputs are included.
- An interest rate and annual percentage rate are related but are not necessarily the same measure.
- Savings and retirement projections depend on assumed returns and do not guarantee future performance.
- Credit decisions, lender approval, available rates and contractual terms cannot be predicted by a general calculator.
Finance Calculator FAQs
Are these finance calculators free to use?
Yes. The finance calculators added to this category are intended to be free browser-based tools.
Are calculator results financial advice?
No. Results are educational estimates and do not replace advice, disclosures, quotes or approval terms from a qualified professional or provider.
What is the difference between an interest rate and APR?
An interest rate measures the cost of borrowing principal. APR may include certain additional finance charges and expresses an annualized cost under applicable rules.
Why can a lender quote differ from a calculator result?
Actual offers can include lender-specific rates, fees, taxes, insurance, credit decisions, rounding rules and other terms a general calculator may not know.
Can I use these calculators on my phone?
Yes. This category page is responsive and designed for phones, tablets, laptops and desktop screens.
Do these tools use live interest rates?
No unless a tool clearly states otherwise. Enter a rate from a current quote or a scenario you want to compare.