Calculators that show their work
Free calculators for pay, taxes, dates, school and everyday questions. Every rule is checked against the original source, and every page shows the math and says when it was checked.
New rules for 2027
They start January 1, 2027, 70 days from today.
- Saver's Match CalculatorThe new federal match on retirement savings, from 2027
- Medicaid Work Requirements Checker80 hours, $580, or an exemption — check your month
- Scholarship Tax Credit CalculatorThe $1,700 credit for giving, and who can receive
- Maryland FAMLI CalculatorMaryland's paid leave contribution from your paycheck
- Minimum Wage by State 2027Every state's rate now and from January 1, 2027, with yearly pay after taxes
Quick answers
Money & taxes
- Take-Home Pay CalculatorSalary to paycheck after taxes, for every state
- Paycheck CalculatorHourly or salary, per pay period, by state
- Salary CalculatorAnnual, monthly, weekly, daily and hourly pay
- Hourly to Salary CalculatorAn hourly wage as a yearly salary, and back
- Income Tax Calculator2026 federal income tax with brackets shown
- Sales Tax CalculatorAdd or remove sales tax, with state rates
- Inflation CalculatorWhat a dollar from any year since 1913 is worth now
- Mortgage CalculatorMonthly payment with taxes, insurance, PMI and HOA
- How Much House Can I AffordThe home price your income, debts and down payment support
- Income Needed to Buy a House, by StateWhat the typical home takes in every state, from Census and Freddie Mac data
- California Minimum Wage 2027$17.40 from January 1, city rates, fast food and health care
- Florida Minimum Wage 2027$15.00 through 2027, tipped wage and the 2028 inflation raise
- New York Minimum Wage 2027$17.00 downstate and $16.00 upstate, tipped and home care rates
- Texas Minimum Wage 2027Still $7.25: tipped wage, exceptions and yearly pay
- Michigan Minimum Wage 2027$15.00 from January 1, tipped share, minors and training wage
- Ohio Minimum Wage 2027$11.40 from January 1 and the small-business line
- New Jersey Minimum Wage 2027$16.48 from January 1, seasonal, farm and care rates
- Washington Minimum Wage 2027$17.73 from January 1, Seattle and other city rates
- Arizona Minimum Wage 2027$15.65 from January 1, Flagstaff, Tucson and paid sick time
- Virginia Minimum Wage 2027$13.75 from January 1, $15.00 in 2028, farm workers covered
- Car Payment CalculatorMonthly car payment with trade-in, tax and fees
- Loan CalculatorPayment and amortization for any fixed-rate loan
- Amortization CalculatorEvery payment split into principal and interest, with extra payments
- CD CalculatorWhat a certificate of deposit earns by maturity
- 401(k) CalculatorYour balance at retirement with the 2026 limits
- Roth IRA CalculatorHow much you may put in, and what it grows to
- Premium Tax Credit CalculatorYour ACA subsidy for 2026 and what you may owe back
Dates & time
- Days From Today CalculatorAny number of days, weeks or months from today
- Date CalculatorAdd or subtract days, weeks, months or years
- Days CalculatorDays, weeks and business days between two dates
- Hours CalculatorHours worked from clock-in to clock-out, minus breaks
- Time Card CalculatorA week of shifts to total hours and pay
- Time CalculatorAdd or subtract hours and minutes, or the time between two times
- Age CalculatorExact age in years, months and days
- Time Duration CalculatorHours, minutes and seconds between two times or dates
- Minutes to HoursMinutes as hours and minutes, and as decimal hours
- Today's DateToday's date, day of the year and week number
Percent & grades
- Percentage CalculatorWhat is X% of Y, X is what percent of Y, and more
- Percent Change CalculatorThe increase or decrease from one number to another
- Final Grade CalculatorThe score you need on the final
- Grade CalculatorWeighted average of your class grades
- GPA CalculatorYour GPA on the 4.0 scale, weighted or unweighted
Health
- BMI CalculatorBody mass index for adults, with the CDC categories
- Maintenance Calorie CalculatorThe calories you burn in a day
- Calorie Deficit CalculatorCalories a day to lose weight, and how fast
- Macro CalculatorProtein, carbs and fat in grams for your calories
- Body Fat CalculatorBody fat percentage from a tape measure
- Height CalculatorA child's predicted adult height from the parents' heights
- Sleep CalculatorWhen to wake up or go to bed, in full sleep cycles
Home & garden
- Square Footage CalculatorArea of rooms, lots and odd shapes in square feet
- Square Feet to AcresSquare feet as acres, and acres as square feet
- Cubic Yard CalculatorCubic yards and cubic feet for any project
- Concrete CalculatorCubic yards and bags for slabs, footings and posts
- Gravel CalculatorTons and cubic yards of gravel for a driveway or path
- Mulch CalculatorCubic yards and bags of mulch for your beds
Everyday
- Snow Day CalculatorThe chance school closes, from the National Weather Service forecast
- Random Number GeneratorFair random numbers, with or without repeats
- Dice RollerRoll any number of dice with any number of sides
- Celsius to Fahrenheit°C to °F with the formula and a table
- Fahrenheit to Celsius°F to °C with the formula and a table
- Subnet CalculatorIPv4 network, broadcast, host range and mask
How we build
Checked against the source
Tax brackets from the IRS, prices from the Bureau of Labor Statistics, rules from the law itself. Each page lists its sources and the date we last checked them.
The math, line by line
Results come with the steps that lead to them, so you can follow every number and catch anything that doesn't fit your situation.
Honest about limits
A calculator is an estimate, not advice. Where a rule is still a proposal, or a form isn't out yet, the page says so. How we check