Free Online Calculators for Money, Health, School & Home

Monthly mortgage payment with property tax, home insurance, PMI and HOA, plus a full amortization schedule.

Loan amortization schedule by month and year, with extra payments, interest saved and a balance chart.

How much house you can afford from your income, debts and down payment, using lender debt-to-income limits.

VA mortgage payment with the 2026 VA funding fee, property tax, insurance and HOA – no PMI.

Should you refinance? New payment, monthly savings, break-even point and lifetime interest compared.

How extra monthly, yearly, lump-sum or biweekly payments shorten your mortgage and cut interest.

Home equity line of credit you may qualify for, plus interest-only and repayment-period payments.

How much rent you can afford from your income and debts, by the 30% rule, the 40× landlord rule and a budget.

Car payment with trade-in, down payment, sales tax and fees, plus total interest and a payoff schedule.

Payment, total interest and schedule for any fixed-rate loan, or the amount due on a loan paid back in one lump sum.

Personal loan payment with the origination fee, the true APR and total cost, compared across terms.

Student loan payment and payoff date on standard or extended plans, and how extra payments cut interest.

How long a credit card takes to pay off at a fixed payment, or the payment needed to be debt-free by a date.

Snowball or avalanche plan for several debts: payoff order, debt-free date and interest saved.

Take-home pay after 2026 federal tax, Social Security, Medicare and state income tax for all 50 states and DC.

Hours and minutes between two times, with unpaid breaks, overnight shifts, decimal hours and pay.

Weekly timesheet with in/out times and breaks for each day, total hours, overtime after 40 hours and gross pay.

Convert hourly pay to salary and back: yearly, monthly, biweekly, weekly, daily and hourly, before and after tax.

2026 federal income tax with brackets, standard or itemized deduction, child credit, and the new tips, overtime and senior deductions.

Add sales tax to a price or take it out of a total, with every state's rate plus your local rate.

Growth of savings with monthly contributions and daily, monthly or yearly compounding, with a year-by-year table.

What a dollar from any year between 1913 and 2026 is worth today, using the official US Consumer Price Index.

What your investments grow to with monthly contributions, or the monthly amount needed to reach a goal.

Simple and compound interest on savings or a loan, with deposits, taxes and inflation, and every compounding frequency compared.

How much you need to retire, what your savings will grow to and how long they will last, in today's dollars.

Certificate of deposit earnings at maturity from the APY or rate, term and compounding, after tax.

401(k) balance at retirement with your contribution, employer match, raises and 2026 IRS limits.

Roth IRA balance at retirement, tax-free growth versus a taxable account, and your 2026 contribution limit by income.

Savings balance over time with deposits and APY, or how long and how much a month to reach a savings goal.

Daily calories to maintain, lose or gain weight, from your age, sex, height, weight and activity level.

Total daily energy expenditure: your BMR plus activity, compared across every activity level, with cut and bulk targets.

Body mass index for adults from height and weight in pounds and feet or metric, with the CDC category and healthy weight range.

Daily calories to lose weight at your chosen pace, how long it takes to reach your goal weight and a safe-minimum check.

Due date and how far along you are from your last period, conception date, IVF transfer or ultrasound.

Ovulation day, fertile window and next period for the next six cycles, from your last period and cycle length.

Basal metabolic rate by the Mifflin-St Jeor, Harris-Benedict and Katch-McArdle equations, with calories for each activity level.

Daily protein, carbs and fat in grams for your goal – lose, maintain or gain – and diet style, per day and per meal.

Best times to go to bed or wake up in 90-minute sleep cycles, and how much sleep your age group needs.

X% of Y, what percent one number is of another, percentage increase or decrease and percent difference.

Days between two dates, or add and subtract days, weeks, months and years from a date – with business days.

Exact age in years, months and days from a date of birth, with totals in weeks, days and hours and a birthday countdown.

Semester and cumulative GPA on the US 4.0 scale, weighted or unweighted, with honors and AP classes.

Cubic yards and 40, 60 and 80 lb bags of concrete for slabs, footings, columns and steps, with waste and cost.

Add or subtract hours, minutes and seconds, or add time to a clock time to find when something ends.

Final exam grade you need for the class grade you want, and your weighted grade from assignments and tests.

Add, subtract, multiply and divide fractions and mixed numbers, with simplified answers and steps.

Square feet of rooms and shapes in feet and inches, total area for several rooms and the cost per square foot.

Sample or population standard deviation, variance and mean of a data set, with every step shown.

Tip and total for any bill, split between people, with tip on the pre-tax amount and rounding.

Online scientific calculator with trig in degrees or radians, logs, powers, roots, factorials, memory and history.