All Free Calculators

Calculate your exact take-home pay after federal tax, state tax, Social Security, and Medicare for all 50 US states.

Find your exact take-home pay after all federal and state deductions, 401k contributions, and health insurance premiums.

Estimate your 2026 federal tax refund or amount owed using current IRS tax brackets, standard deductions, and tax credits.

Calculate state income tax for all 50 US states plus DC. See your state tax rate, deductions, and net pay for 2026.

Calculate your total net worth by adding assets and subtracting liabilities. Track your financial health over time.

Calculate Compound Annual Growth Rate for investments, revenue, or any metric over any time period.

Calculate dividend income, yield, and total returns from stocks. Project annual dividend income and DRIP reinvestment.

Calculate total stock investment returns including price appreciation, dividends, and annualized CAGR.

Calculate federal capital gains tax on investments and real estate for 2026. Covers short-term and long-term rates.

Calculate overtime pay at time-and-a-half or double time per FLSA rules. Works for hourly and salaried employees.

Estimate your monthly Social Security retirement benefit based on earnings history and claiming age.

Calculate your FIRE number and retirement date using the 4% rule. Model Lean FIRE, Regular FIRE, and Fat FIRE.

Project your Roth IRA balance at retirement and compare Roth vs Traditional IRA tax savings.

Calculate exactly how much emergency fund you need based on your monthly expenses and financial situation.

Estimate home buyer closing costs by US state including origination fees, title insurance, appraisal, and all expenses.

Calculate monthly mortgage payments, total interest, and amortization schedule.

Calculate monthly loan payments, total interest, and payoff schedule for any loan.

Calculate car loan payments, total cost, and see if you can afford your dream vehicle.

See how compound interest grows your money over time with regular contributions.

Project investment returns with regular contributions and different growth rates.

Plan your retirement savings and estimate how much you need to retire comfortably.

Generate a complete loan amortization schedule showing every payment breakdown.

Calculate how your savings grow over time with regular deposits and interest.

Estimate your federal income tax liability based on income, filing status, and deductions.

Convert salary between hourly, daily, weekly, monthly, and annual amounts.

Project your 401(k) balance at retirement with employer match and tax advantages.

Calculate credit card interest charges and minimum payment impact.

Create a payoff plan to eliminate credit card debt and save on interest.

Create your optimal debt payoff plan using avalanche or snowball strategies.

Calculate student loan payments and explore repayment options.

Calculate sales tax for any purchase and find the total price including tax.

Add or remove VAT from prices. Calculate net, VAT, and gross amounts.

Convert between world currencies with reference exchange rates.

Calculate simple and compound interest on savings, loans, and investments.

Calculate simple interest earned or paid using the I = PRT formula.

Calculate Return on Investment percentage for any business or investment decision.

Calculate the true Annual Percentage Rate of a loan including all fees.

Calculate sale prices, savings amounts, and discount percentages instantly.

Calculate tips and split restaurant bills among multiple people instantly.

Calculate profit margin, markup, and revenue for business pricing decisions.

Find out how much house you can afford based on income and debt.

Calculate how much rent you can afford based on your income.

Calculate monthly car lease payments with residual value and money factor.

Calculate potential savings from refinancing your mortgage or loan.

Calculate the present value of future cash flows using discount rate.

Calculate the future value of an investment or savings account.

Create a personal budget and track income vs expenses across categories.

Calculate loan payment amounts or determine how much you can borrow.

Calculate the real purchasing power of money adjusted for inflation over time.

Calculate your Body Mass Index and find your healthy weight range.

Calculate daily calorie needs for weight loss, maintenance, or muscle gain.

Calculate Total Daily Energy Expenditure for effective weight management.

Calculate your Basal Metabolic Rate — calories burned at complete rest.

Estimate body fat percentage using the US Navy or BMI method.

Calculate ideal macronutrient ratios for your fitness goals.

Find your ideal body weight range based on height and frame size.

Calculate due date, conception date, and full pregnancy timeline by week.

Calculate your baby's due date from last period or conception date.

Predict your ovulation window and most fertile days in your cycle.

Calculate optimal daily protein intake for muscle gain, fat loss, or maintenance.

Calculate calories burned during exercise and physical activities.

Find your target heart rate zones for optimal cardio training.

Calculate running pace, finish time, or distance for any race.

Estimate your one-repetition maximum for strength training exercises.

Full-featured scientific calculator with trigonometry, logarithms, and advanced functions.

Calculate percentages, percentage change, and percentage of any number.

Calculate semester and cumulative GPA from course grades and credit hours.

Add, subtract, multiply, and divide fractions with step-by-step solutions.

Calculate mean, median, mode, standard deviation, variance, and more.

Calculate mean, median, mode, range, and geometric mean of a dataset.

Calculate population and sample standard deviation with full working.

Generate truly random numbers within any range with advanced options.

Calculate event probabilities, combined probabilities, and conditional probability.

Simplify ratios and solve proportion problems with step-by-step solutions.

Calculate powers, roots, and exponential expressions with any base.

Convert between binary, decimal, hexadecimal, and octal number systems.

Solve quadratic equations using the quadratic formula with step-by-step working.

Calculate slope, distance, and equation of a line between two points.

Calculate triangle sides, angles, area, and perimeter from any known values.

Find the missing side of a right triangle using the Pythagorean theorem.

Calculate logarithms with any base including natural log and log base 10.

Calculate area of circle, rectangle, triangle, trapezoid, and other shapes.

Calculate volume of 3D shapes: sphere, cylinder, cone, cube, and more.

Calculate percent error between experimental and theoretical values.

Calculate z-scores and find probabilities using the standard normal distribution.

Calculate confidence intervals for population means and proportions.

Find the least common multiple (LCM) of two or more numbers.

Find the greatest common factor (GCF) of two or more numbers.

Perform matrix operations: addition, subtraction, multiplication, and determinant.

Calculate tips and split restaurant bills among any number of people.

Calculate exact age in years, months, days, hours, and minutes from birthdate.

Calculate days between dates or add/subtract time from any date.

Calculate total work hours between start and end times with break deductions.

Generate strong, secure, random passwords with customizable options.

Find the best bedtime or wake time based on 90-minute sleep cycles.

Add and subtract time values including hours, minutes, and seconds.

Calculate final course grade based on assignment scores and weights.

Calculate concrete volume and bags needed for slabs, footings, and columns.

Calculate trip fuel costs based on distance, fuel efficiency, and gas price.

Calculate BTU needed to heat or cool a room based on size and conditions.

Calculate electricity usage and cost for appliances and monthly bills.

Calculate roof area, shingles needed, and material costs for roofing projects.

Calculate tiles needed for floors, walls, and backsplashes with waste factor.

Calculate mulch volume and bags needed for garden beds and landscaping.

Calculate gravel, pea gravel, or crushed stone needed for any project.

Calculate square footage of rooms, floors, and irregularly shaped areas.

Calculate the wind chill temperature based on air temperature and wind speed.

Calculate fun love compatibility percentage between two names.