Financial Calculators

Free online tools for loans, investments, retirement planning, budgeting, and taxes. All calculators run in your browser — no sign-up required.

Loans & Mortgages

Mortgage Calculator

Monthly payments, total interest, and amortization schedules.

Auto Loan Calculator

Estimate car payments with trade-in and down payment.

Loan Payoff Calculator

See how extra payments speed up your payoff date.

Credit Card Payoff

Find out how long it takes to pay off your balance.

Debt-to-Income Calculator

Check your DTI ratio — the number lenders use.

Amortization Calculator

See your full loan payment schedule month by month.

Simple Interest

Calculate interest on principal without compounding.

Personal Loan Calculator

Compare rates and monthly payments for personal loans.

Business Loan Calculator

Estimate business loan payments and total interest.

Student Loan Calculator

Plan repayment with standard, graduated, or income-driven options.

Car Lease Calculator

Estimate monthly lease payments and total cost.

Down Payment Calculator

See how your down payment affects mortgage terms and PMI.

Home Equity Calculator

Calculate your equity, LTV ratio, and max HELOC amount.

Investments & Savings

Compound Interest

Investment growth with contributions and compounding.

Retirement Calculator

Estimate how much you need to retire comfortably.

ROI Calculator

Calculate return on investment for any asset.

Savings Goal Calculator

How much to save monthly to hit your target.

Inflation Calculator

See how inflation erodes your purchasing power.

Net Worth Calculator

Add up assets minus liabilities to see your net worth.

Investment Calculator

Project growth with regular contributions and compounding.

CD Calculator

Calculate certificate of deposit earnings at maturity.

Stock Return Calculator

Total return, capital gain, and CAGR for any stock trade.

Income & Taxes

Tax Calculator

Estimate federal income tax based on brackets.

Salary Converter

Convert between hourly, weekly, monthly, and annual pay.

Tip Calculator

Split bills and calculate tips for any group size.

Currency Converter

Quick conversion between 10 major world currencies.

Sales Tax Calculator

Add or extract sales tax from any purchase amount.

Discount Calculator

Calculate sale prices with single or stacked discounts.

Time Card Calculator

Track weekly work hours and calculate pay.

Net Pay Calculator

Estimate take-home pay after taxes and deductions.

Property Tax Calculator

Annual and monthly property tax based on assessed value.

Hours Calculator

Calculate hours worked and gross pay from start/end times.

Business

Profit Margin Calculator

Gross, operating, and net profit margins from revenue and cost.

Break-Even Calculator

Find the sales volume where revenue covers all costs.

Markup Calculator

Convert between markup and margin, set selling prices.

How to Choose the Right Financial Calculator

Each calculator is built for a specific decision. If you're buying a home, start with the Mortgage Calculator and check your DTI ratio. Planning for retirement? Use the Retirement Calculator alongside the Compound Interest Calculator to see how your savings grow. Trying to get out of debt? The Credit Card Payoff and Loan Payoff calculators show exactly how extra payments help.

All our financial tools are free, private (no data leaves your browser), and include educational content explaining the formulas and concepts behind each calculation.

View All Calculators A-Z →