All Calculators
201 free interactive calculators. No sign-up required.
Mortgage & Home
View allMortgage Payment Calculator
Calculate your monthly mortgage payment including principal, interest, taxes, and insurance.
Mortgage Refinance Calculator
Compare your current mortgage with a new loan to see monthly savings and break-even point.
Rent vs Buy Calculator
Compare the total cost of renting versus buying a home over time.
Home Affordability Calculator
Find out how much house you can afford based on your income, debts, and down payment.
Closing Costs Calculator
Estimate closing costs when buying a home including lender fees, title, and prepaids.
Home Equity Calculator
Calculate your home equity and how much you could borrow with a HELOC.
Down Payment Calculator
Find out how much to save for a home down payment and how long it will take.
Biweekly Mortgage Calculator
See how biweekly payments save you time and interest on your mortgage.
Reverse Mortgage Calculator
Estimate how much you could receive from a reverse mortgage based on your home value and age.
Balloon Mortgage Calculator
Calculate monthly payments and the balloon payment due at the end of your loan term.
ARM Calculator
Calculate payments for an adjustable rate mortgage with rate changes over time.
Mortgage Points Calculator
Calculate the break-even point for buying mortgage discount points.
Home Value Estimator
Project your home's future value based on purchase price and annual appreciation.
PMI Calculator
Calculate private mortgage insurance costs and see when PMI drops off your loan.
FHA Loan Calculator
Calculate FHA loan payments including upfront and annual mortgage insurance premiums.
VA Loan Calculator
Calculate VA loan payments with 0% down and funding fee for eligible veterans.
Jumbo Loan Calculator
Calculate jumbo mortgage payments for loans exceeding conforming loan limits.
Retirement
View all401(k) Calculator
Estimate your 401(k) balance at retirement with employer matching and investment growth.
Retirement Savings Calculator
Project your retirement savings growth and see if you are on track.
IRA Calculator
Compare Traditional vs Roth IRA growth and tax implications over time.
RMD Calculator
Calculate your Required Minimum Distribution from retirement accounts.
Social Security Calculator
Estimate your Social Security benefits based on when you start claiming.
Roth vs Traditional Calculator
Compare Roth and Traditional IRA/401(k) to see which is better for you.
Annuity Calculator
Calculate annuity payments from a lump sum or how much to invest for desired payments.
403(b) Calculator
Estimate your 403(b) retirement savings for nonprofit and education employees.
Roth vs Traditional 401(k) Calculator
Compare Roth 401(k) and Traditional 401(k) to see which gives you more in retirement.
FIRE Calculator
Calculate when you can achieve Financial Independence and Retire Early (FIRE).
Pension Calculator
Estimate your pension benefit based on years of service, salary, and benefit formula.
Loans & Debt
View allAuto Loan Calculator
Calculate your monthly car payment and total loan cost including trade-in and sales tax.
Student Loan Payoff Calculator
Plan your student loan payoff with standard and accelerated schedules.
Debt Snowball / Avalanche Calculator
Compare debt payoff strategies — snowball (lowest balance first), avalanche (highest interest first), and more.
Personal Loan Calculator
Calculate monthly payments, total interest, and effective APR for a personal loan.
Debt Consolidation Calculator
Compare consolidating multiple debts into a single loan to see if you save money.
Amortization Schedule
Generate a full amortization schedule for any loan.
APR Calculator
Calculate the true APR of a loan including all fees and costs.
Boat Loan Calculator
Calculate monthly payments and total cost for a boat or marine loan.
HELOC Calculator
Calculate available credit and payments for a home equity line of credit.
Loan Comparison Calculator
Compare two loan options side by side to find the better deal.
Investment
View allCompound Interest Calculator
See how your money grows over time with compound interest and regular contributions.
Investment Returns Calculator
Calculate your potential investment returns over different time horizons.
ROI Calculator
Calculate return on investment including annualized returns and net gain.
Dollar-Cost Averaging Calculator
Compare dollar-cost averaging vs lump sum investing to see which strategy wins.
Simple Interest Calculator
Calculate simple interest on a principal amount over time.
CAGR Calculator
Calculate the Compound Annual Growth Rate of an investment.
NPV Calculator
Calculate Net Present Value for investment decisions with multiple cash flows.
Future Value Calculator
Calculate the future value of a lump sum or annuity.
Present Value Calculator
Discount future money to find what it is worth today.
Millionaire Calculator
Find out how long it takes to reach $1 million (or any target).
Dividend Calculator
Calculate dividend income with DRIP reinvestment and dividend growth.
Dividend Yield Calculator
Calculate dividend yield from stock price and dividend payments.
Stock Profit Calculator
Calculate profit or loss from buying and selling stocks.
Bond Yield Calculator
Calculate current yield and yield to maturity for bonds.
WACC Calculator
Calculate the Weighted Average Cost of Capital for a company.
Tax
View allIncome Tax Estimator
Estimate your federal income tax using current brackets and deductions.
Payroll Tax Calculator
Calculate take-home pay after federal, state, and FICA taxes.
Self-Employment Tax Calculator
Calculate self-employment tax (Schedule SE) including Social Security and Medicare.
Sales Tax Calculator
Calculate sales tax on any purchase amount.
Salary to Hourly Converter
Convert annual salary to hourly rate and see all pay period breakdowns.
Overtime Pay Calculator
Calculate overtime pay including 1.5x and 2x hourly rates.
Estate Tax Calculator
Estimate federal estate tax liability with exemptions and graduated rates.
Capital Gains Tax Calculator
Calculate short-term and long-term capital gains tax on investments.
Tax Bracket Calculator
Find your federal tax bracket and see marginal vs effective tax rates.
Earned Income Credit Calculator
Estimate your Earned Income Tax Credit (EITC) based on income and dependents.
Child Tax Credit Calculator
Calculate the Child Tax Credit based on number of children and income.
Charitable Giving Tax Calculator
Calculate tax savings from charitable donations and deductions.
Lottery Tax Calculator
Calculate taxes on lottery winnings with lump sum vs annuity comparison.
Hourly to Salary Calculator
Convert hourly wage to annual salary with overtime calculations.
Auto
View allLease vs Buy Calculator
Compare the total cost of leasing versus buying a car.
Fuel Cost Calculator
Compare fuel costs between vehicles by MPG, gas price, and annual miles driven.
Car Loan Payoff Calculator
See how extra payments help you pay off your car loan faster.
Car Depreciation Calculator
Estimate how much your car loses in value each year.
Auto Loan Refinance Calculator
Calculate savings from refinancing your auto loan to a lower interest rate.
Motorcycle Loan Calculator
Calculate monthly payments for a motorcycle loan with trade-in and taxes.
Car Affordability Calculator
Find out how much car you can afford based on your income and budget.
Car Lease Payment Calculator
Calculate car lease payments using capitalized cost, residual value, and money factor.
EV vs Gas Savings Calculator
Compare the operating costs of an electric vehicle versus a gas car.
MPG Calculator
Calculate your miles per gallon from fill-up data and see annual fuel costs.
Auto Rebate vs Low-Rate Financing
Compare taking a cash rebate versus choosing promotional low-rate financing.
RV / Camper Loan Calculator
Calculate monthly payments for an RV or camper loan including insurance and storage.
Insurance
View allLife Insurance Needs Calculator
Calculate how much life insurance coverage you need based on income, debts, and dependents.
Disability Insurance Calculator
Calculate how much disability insurance coverage you need to protect your income.
Long-Term Care Cost Estimator
Estimate future long-term care costs for nursing homes, assisted living, and home care.
Fixed Annuity Payout Calculator
Calculate guaranteed payouts from a fixed annuity based on your investment and rate.
Variable Annuity Growth Projector
Project variable annuity growth including fees, expense ratios, and mortality charges.
Life Insurance Calculator (DIME Method)
Calculate detailed life insurance needs using the DIME method: Debt, Income, Mortgage, Education.
Business
View allBreak-Even Calculator
Find how many units you need to sell to cover your costs.
Profit Margin Calculator
Calculate gross, operating, and net profit margins from your revenue and costs.
Cash Flow Calculator
Project your business cash flow, burn rate, and runway over time.
Startup Cost Estimator
Estimate total startup costs and identify your funding gap.
DSCR Calculator
Calculate the debt service coverage ratio to evaluate loan qualification and financial health.
Business Valuation Calculator
Estimate your business value using revenue multiples and discounted cash flow methods.
Cost of Goods Sold Calculator
Calculate COGS and gross profit to understand your product profitability.
Contribution Margin Calculator
Calculate your contribution margin to understand how much each sale contributes to profit.
Payback Period Calculator
Calculate how long it takes for an investment to pay for itself.
Mileage Reimbursement Calculator
Calculate IRS mileage rate reimbursement for business, medical, or charity driving.
Credit Card
View allCredit Card Payoff Calculator
Find out how long it will take to pay off your credit card and how much interest you will pay.
Balance Transfer Calculator
See if transferring your credit card balance to a 0% intro APR card saves money.
Minimum Payment Calculator
See how long it takes to pay off a credit card with minimum payments only.
Savings
View allSavings Goal Calculator
Find out how much to save each month to reach your financial goal.
Emergency Fund Calculator
Calculate how much you need in your emergency fund based on monthly expenses.
CD Calculator
Calculate certificate of deposit earnings with compounding interest.
Savings Calculator
Calculate how your savings grow with regular deposits and compound interest.
529 College Savings Calculator
Project your 529 plan growth and see if you'll have enough for college tuition.
College Cost Calculator
Project future college costs with inflation and savings growth.
CD Ladder Calculator
Build a CD ladder strategy for optimal liquidity and returns.
Personal Finance
View allNet Worth Calculator
Calculate your net worth by subtracting liabilities from assets.
Debt-to-Income Calculator
Calculate your DTI ratio to understand your borrowing capacity.
Budget Calculator
Apply the 50/30/20 budgeting rule to your income and track spending.
Tip Calculator
Calculate tip amount and split the bill among friends.
Inflation Calculator
See how inflation erodes your purchasing power over time.
Pay Raise Calculator
Calculate your new salary after a raise and see the per-paycheck impact.
Cost of Living Calculator
Compare cost of living between cities and calculate equivalent salary.
Wedding Budget Calculator
Plan your wedding budget with per-category breakdowns.
Health
View allBMI Calculator
Calculate your Body Mass Index from height and weight.
Calorie Calculator
Calculate daily calorie needs based on age, weight, height, and activity level.
HSA Calculator
Calculate HSA tax savings and projected balance over time.
TDEE Calculator
Calculate your Total Daily Energy Expenditure using the Harris-Benedict equation.
Macro Calculator
Calculate your ideal protein, carb, and fat macronutrient split.
Body Fat Calculator
Estimate your body fat percentage using the Navy method.
Ideal Weight Calculator
Find your ideal weight using Devine, Robinson, Miller, and Hamwi formulas.
Protein Calculator
Calculate daily protein needs based on weight and activity level.
BMR Calculator
Calculate Basal Metabolic Rate using Mifflin-St Jeor and Harris-Benedict equations.
Pregnancy Due Date Calculator
Estimate your pregnancy due date from your last menstrual period.
Ovulation Calculator
Estimate your ovulation date and fertility window.
BAC Calculator
Estimate blood alcohol content using the Widmark formula.
Sleep Calculator
Find optimal bedtimes and wake times based on sleep cycles.
Water Intake Calculator
Calculate your recommended daily water intake.
BMI Calculator for Kids
Calculate BMI for children with age and sex percentile interpretation.
Keto Macro Calculator
Calculate your ideal keto macros with high fat and low carb ratios.
Pregnancy Weight Gain Calculator
Calculate recommended weight gain by trimester during pregnancy.
Real Estate
View allCap Rate Calculator
Calculate the capitalization rate to evaluate real estate investment returns.
Rental Property ROI Calculator
Calculate the total return on investment for a rental property including cash flow and appreciation.
Real Estate Commission Calculator
Calculate agent commission splits for buyer and listing agents on a home sale.
Rent Increase Projector
Project how your rent will increase over time with annual rent hikes.
Price Per Square Foot Calculator
Calculate and compare price per square foot for properties and comparable sales.
Math
View allPercentage Calculator
Calculate percentages: find X% of Y, what percent X is of Y, or X is Y% of what.
Percentage Change Calculator
Calculate the percentage increase or decrease between two values.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step results.
Square Root Calculator
Calculate the square root or nth root of any number.
Exponent Calculator
Calculate base raised to any power (base^exponent).
Logarithm Calculator
Calculate natural log (ln), log base 10, or logarithm with any custom base.
Scientific Notation Calculator
Convert numbers to and from scientific notation.
Significant Figures Calculator
Count significant figures in a number and round to a specific number of sig figs.
Quadratic Formula Calculator
Solve quadratic equations (ax² + bx + c = 0) and find the roots.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using a² + b² = c².
Greatest Common Factor Calculator
Find the greatest common factor (GCF) of two numbers.
Least Common Multiple Calculator
Find the least common multiple (LCM) of two numbers.
Prime Factorization Calculator
Find the prime factors of any positive integer.
Slope Calculator
Calculate the slope of a line between two points.
Midpoint Calculator
Find the midpoint between two points on a coordinate plane.
Distance Formula Calculator
Calculate the distance between two points on a coordinate plane.
Area Calculator
Calculate the area of common shapes: circle, rectangle, triangle, and trapezoid.
Circumference Calculator
Calculate the circumference of a circle from its radius or diameter.
Volume Calculator
Calculate the volume of common 3D shapes: sphere, cylinder, cube, and cone.
Average Calculator
Calculate the mean, median, and mode from a list of numbers.
Weighted Average Calculator
Calculate the weighted average of values with different weights.
Decimal to Fraction Calculator
Convert a decimal number to its simplest fraction form.
Fraction to Decimal Calculator
Convert a fraction to its decimal and percentage equivalent.
Mixed Number Calculator
Convert between mixed numbers and improper fractions.
Proportion Calculator
Solve a/b = c/d for any missing value in a proportion.
Ratio Calculator
Simplify ratios and scale them to a desired total.
Golden Ratio Calculator
Calculate golden ratio relationships using phi (1.618...).
Factorial Calculator
Calculate factorial (n!), double factorial (n!!), and subfactorial (!n).
Statistics
View allStandard Deviation Calculator
Calculate population and sample standard deviation from a data set.
Probability Calculator
Calculate basic probability from favorable outcomes divided by total outcomes.
Combination Calculator (nCr)
Calculate the number of combinations (nCr) for choosing r items from n.
Permutation Calculator (nPr)
Calculate the number of permutations (nPr) for arranging r items from n.
Z-Score Calculator
Calculate the z-score from a value, population mean, and standard deviation.
Confidence Interval Calculator
Calculate the confidence interval for a population mean.
P-Value Calculator
Calculate the p-value from a z-score or t-score for hypothesis testing.
Mean, Median, Mode Calculator
Calculate mean, median, and mode from a dataset of up to 10 values.
Variance Calculator
Calculate population and sample variance from a data set.
Margin of Error Calculator
Calculate the margin of error for surveys and polls.
Sample Size Calculator
Calculate the required sample size for a given confidence level and margin of error.
Correlation Coefficient Calculator
Calculate the Pearson correlation coefficient (r) from paired data.
Fitness
View allHeart Rate Zone Calculator
Calculate training heart rate zones using the Karvonen method.
1RM Calculator
Calculate your one-rep max from weight and reps using Brzycki and Epley formulas.
Pace Calculator
Convert between pace, time, and distance for running and walking.
Calories Burned Calculator
Estimate calories burned by activity and duration using MET values.
Walking Calories Calculator
Calculate calories burned while walking based on speed, weight, and duration.
VO2 Max Calculator
Estimate your VO2 max from running test data.
Construction
View allSquare Footage Calculator
Calculate the square footage of rooms, walls, and irregularly shaped areas.
Concrete Calculator
Calculate cubic yards of concrete needed for slabs, footings, and columns.
Paint Calculator
Calculate gallons of paint needed for a room including walls and ceiling.
Roofing Calculator
Calculate roofing squares, bundles of shingles, and materials needed.
Flooring Calculator
Calculate flooring material needed with waste factor for any room.
Drywall Calculator
Calculate sheets of drywall needed for walls and ceilings.
Fence Calculator
Calculate fence materials including posts, rails, pickets, and concrete.
Gravel Calculator
Calculate tons of gravel, rock, or fill material needed for a project.
Tile Calculator
Calculate the number of tiles needed with waste factor and grout.
Deck Stain Calculator
Calculate gallons of stain or sealer needed for a deck.
Insulation Calculator
Calculate insulation batts or rolls needed with R-value selection.
Brick Calculator
Calculate the number of bricks and mortar needed for a wall or project.
Stair Calculator
Calculate stair rise, run, and number of steps from total height.
Ramp Calculator
Calculate ADA-compliant ramp length from height using 1:12 ratio.
Wallpaper Calculator
Calculate rolls of wallpaper needed for a room.
Board Foot Calculator
Calculate board feet from lumber dimensions and quantity.
Carpet Calculator
Calculate carpet square yards needed and estimate cost.
Paver Calculator
Calculate the number of pavers needed for a patio or walkway.
Roof Pitch Calculator
Calculate roof pitch angle and multiplier from rise and run.
Pool Volume Calculator
Calculate pool water volume in gallons for rectangular and round pools.