the title of a calculator to go to the calculator.
in the plus (+) icon to see a summary of what the calculator does.
in a the minus (-) icon to hide the summary.
the Expand All Calculator Summaries button to open all summaries at once. again to collapse all summaries.
- Date & Time CalculatorsCurrent Date & Time CalculatorsCurrent Date & Time Calculator MenuCurrent Date & Time Calculator Menu17
Add Hours Minutes CalculatorAdd up hours and minutes for any number of time blocks.Add Hours Minutes Calculator
Age CalculatorCalculate your age in years, months, and days -- as of any date of your choosing.Age Calculator
Baby Due Date CalculatorCalculate your baby's due date, including the day of the week the due day falls on.Baby Due Date Calculator
Business Day CalculatorCalculate the number of business days between two dates.Business Day Calculator
Chronological Age CalculatorCalculate a person's age in years, months, and days by subtracting the person's date of birth from a given test date.Chronological Age Calculator
Count Up TimerCount up the years, months, weeks, days, hours, minutes, and seconds since the date and time of a special occasion.Count Up Timer
Countdown CalculatorCount down the years, months, weeks, days, hours, minutes, and seconds until the date and time of a special occasion.Countdown Calculator
Date Difference CalculatorCalculate the number of days between two dates, plus convert those number of days to their equivalent years, months, weeks, hours, minutes, and seconds.Date Difference Calculator
Date Time CalculatorSubtract or add days, weeks, months, and years from or to a date of your choosing.Date Time Calculator
Day of the Week CalculatorLearn whether the date you enter is a Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday.Day of the Week Calculator
Day of Year CalculatorCalculate the day number of the year for an entered date.Day of Year Calculator
Leap Year CalculatorCalculate whether or not a given Gregorian calendar year was (or will be) a leap year.Leap Year Calculator
Pregnancy Countdown CalculatorCalculate how far along you are and how long you have left, in days, weeks, and months.Pregnancy Countdown Calculator
Printable Weekly PlannerCreate and print a blank planner or a customized planner complete with six color-coded, customizable time blocks.Printable Weekly Planner
Reverse Due Date CalculatorCalculate what date and day of the week your baby was conceived on based on your pregnancy due date, ultrasound, or 1st day of last menstrual period (LMP).Reverse Due Date Calculator
Monthly Schedule CreatorGenerate an editable calendar page for the desired month and year.Monthly Schedule Creator
School Calendar CalculatorCalculate the number of days, weeks, and months remaining in the school year.School Calendar Calculator