Finance Calculators
Financial decisions have long-term consequences. A half-percent difference in mortgage rate can cost tens of thousands over the life of a loan. Not understanding compound interest means underestimating how much your savings can grow — or how fast debt accumulates. Our finance calculators cover the numbers that matter most: mortgage payments, compound growth, investment returns, loan payoffs, and retirement planning. Whether you are buying your first home, comparing loan offers, or building an emergency fund, these tools help you run the numbers before you commit your money.
432 calculators available
Price Per Square Inch Calculator — Compare Unit Costs
Calculate the true price per square inch of any material, fabric, or surface. Compare unit costs across products to find the best value.
Price Per Unit Calculator — Compare Product Costs
Find the true cost per unit to compare products and spot the best deal every time you shop.
Price Per Weight Calculator — Compare Unit Costs
Calculate and compare price per gram, kilogram, ounce, or pound to find the best value when shopping for products sold by weight.
Quit Smoking Calculator — See Your Savings
Calculate how much money and lifespan cigarettes are costing you. See yearly savings, total spent, and recovery timeline.
Rent Affordability Calculator — 30% Income Rule
Calculate how much rent you can afford based on your income and expenses. Get the recommended rent range using the 30% income rule.
Retirement Countdown Calculator — Plan Your Timeline
Count down the years, months, and days until retirement while projecting your future savings balance based on contributions and expected returns.
ROI Calculator — Return on Investment
Calculate return on investment as a percentage and dollar amount. Enter investment cost and return to see ROI, annualized return, and profit or loss.
Savings Goal Calculator — Monthly Amount & Timeline
Calculate how much to save monthly to reach your financial goal. Enter your target amount, timeline, and expected return to see your required monthly savings.
Shower Cost Calculator — Estimate Water and Energy Use
Calculate the annual and monthly cost of your showers including water, sewer, and energy used to heat water.
Social Media Ban Impact Calculator — Estimate Losses
Estimate the financial and growth impact of a social media ban on your business or creator account.
Taxable Equivalent Yield Calculator — Bond Comparison
Compare municipal bond yields against taxable bonds using your marginal tax rate to find the better after-tax investment.
Ticket Price Calculator — Set Event Admission Costs
Calculate the right ticket price for any event. Factor in venue costs, attendance, marketing, fees, and desired profit margin.
Time Card Calculator — Track Hours and Pay
Calculate weekly work hours, overtime pay, and break deductions from clock in and out times. Free time card calculator for employees and employers.
Time to Decimal Calculator — Convert Hours & Minutes
Convert hours and minutes to decimal format for payroll, billing, and timesheet calculations. Fast, accurate, and free.
Tip Calculator — Split Bill & Per-Person Cost
Calculate the tip amount and split the bill evenly among your group. Enter bill total, tip percentage, and number of people for per-person cost.
Trump Card Value Calculator — Quick Score Estimator
Estimate a hypothetical Trump card score based on a base value and a multiplier. Useful for quick simulations in card-collection analysis.
Unit Price Calculator — Compare Product Costs
Compare unit prices between two products to find the better deal. Handles weight, volume, and count units.
Working Days Calculator — Count Business Days Between Dates
Calculate working days between any two dates. Supports 4-day, 5-day, and 6-day work weeks for project planning, contract deadlines, and delivery estimates.