Calculator category

Finance Calculators

Estimate costs, payments, tips, and common personal-finance figures.

About finance calculators

Finance calculators help you make informed money decisions — from comparing loan offers and planning retirement to calculating investment returns and budgeting for major purchases. Whether you're buying a home, saving for college, or evaluating a business investment, these tools break down complex financial formulas into clear, actionable results.

Available calculators (29 total)

Fuel Cost Calculator

Estimate trip fuel use and total fuel cost.

Loan Calculator

Estimate fixed monthly loan payments and total interest.

Tip Calculator

Calculate a tip, total bill, and per-person share.

Compound Interest Calculator

Calculate future value with compound interest.

Mortgage Calculator

Estimate monthly mortgage payment including property tax and insurance estimates.

Investment Return Calculator

Calculate annualized return rate on an investment.

Savings Goal Calculator

Calculate months needed to reach a savings goal.

Simple Interest Calculator

Calculate simple interest earned or owed on a principal amount.

Auto Loan Calculator

Estimate monthly car loan payments with down payment and trade-in.

Student Loan Calculator

Estimate monthly student loan payments and total interest paid.

Credit Card Payoff Calculator

Calculate time and total cost to pay off credit card debt.

Amortization Calculator

Calculate loan amortization schedule showing principal and interest breakdown.

Retirement Calculator

Project retirement savings growth with regular contributions.

Inflation Calculator

Calculate purchasing power change over time given an inflation rate.

CAGR Calculator

Calculate compound annual growth rate between two values.

Rule of 72 Calculator

Estimate years to double an investment at a given interest rate.

Debt-to-Income Calculator

Calculate your debt-to-income ratio for loan qualification.

Net Worth Calculator

Calculate total net worth from assets and liabilities.

Discount Calculator

Calculate sale price and savings from a percentage discount.

Profit Margin Calculator

Calculate profit margin from cost and selling price.

Commission Calculator

Calculate sales commission and total earnings.

Break-Even Calculator

Calculate the break-even point for a business or product.

ROI Calculator

Calculate return on investment as a percentage.

Payback Period Calculator

Calculate how long it takes to recover an investment.

CD Calculator

Calculate returns on a certificate of deposit.

Annuity Calculator

Calculate annuity payment amount from a lump sum.

Car Lease Calculator

Estimate monthly car lease payments.

Sales Tax Calculator

Calculate sales tax and total price from amount and tax rate.

Tip Splitter Calculator

Split a bill with tip among multiple people.

How financial calculations work

Most finance calculators use standard formulas: amortization for loans, compound interest for savings, and present/future value for investments. Results are estimates — actual terms may vary based on lender fees, credit score, taxes, and market conditions. Always consult a financial advisor for major decisions.

Understanding key financial terms

APR (Annual Percentage Rate) includes fees and interest. APY (Annual Percentage Yield) reflects compound interest. DTI (Debt-to-Income) ratio measures monthly debt payments against gross income. Lenders typically prefer DTI below 36%. CAGR (Compound Annual Growth Rate) smooths investment returns over time.

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