Simple calculators for everyday decisions
Fast, mobile-friendly tools for percentages, health, dates, savings, ads, shopping decisions, and small everyday calculations.
Popular calculators
Percentage Calculator
Find percentages, percentage change, profit, loss, discounts, and original values.
BMI Calculator
Estimate your body mass index from height and weight in seconds.
Period Calculator
Estimate your next period, possible ovulation date, and fertile window.
How Long Will My Savings Last?
Estimate how many months or years your savings can support your expenses.
Savings Goal Calculator
Estimate when you can reach a savings target from daily or monthly saving.
Cash vs Installment
Compare cash price with monthly payments and see the real total cost.
Car Loan Calculator
Estimate monthly car payments, down payment, interest, and total cost.
Mortgage Calculator
Estimate monthly mortgage payments, total interest, and savings from extra payments.
Advanced Mortgage Calculator
Compare introductory rates with a later variable mortgage rate.
Yield Calculator
Calculate investment income, annual yield, monthly yield, and estimated payback time.
Dividend Calculator
Estimate dividend income, after-tax income, and long-term portfolio growth.
Days Between Dates
Count the number of days between two calendar dates.
Countdown Calculator
Count down to an event in years, months, days, hours, minutes, and seconds.
Age Countdown Calculator
Count the time left until a target age, including days, weekends, and birthdays.
Days Until Holidays
Check days until Christmas, Halloween, July 4, Thanksgiving, Easter, and more.
Age Calculator
Calculate your exact age in years, days, hours, minutes, and seconds.
Dog Age Calculator
Convert your dog's age into an estimated human-age equivalent.
Cat Age Calculator
Convert your cat's age into an estimated human-age equivalent.
CPM Calculator
Calculate ad cost, CPM, or impressions from any two values.
CTR Calculator
Calculate click-through rate from impressions and clicks.