All Tools
Every page on DateCalcTools, grouped by category. Use the sections below to find a calculator or a specific date question.
Main date calculators
- How Many Days UntilFind out exactly how many days, weeks, and months remain until any future date.
- Date Difference CalculatorCompare two dates and see the difference in days, weeks, months, and years.
- Business Days CalculatorCount the working days between two dates, with weekends excluded.
- Age CalculatorCalculate your exact age in years, months, and days from your birth date.
- Age in Days CalculatorFind out the total number of days you have been alive.
- Countdown CalculatorCreate a simple countdown to any upcoming event or special date.
Date math calculators
- Date Add / Subtract CalculatorAdd or subtract days, weeks, months, or years from any date.
- Months Between DatesFind the exact number of months between two dates.
- Years Between DatesFind the exact number of years between two dates.
- School Days CalculatorCount the school days (Mon–Fri) between two dates.
- Working Days CalculatorCount working days between two dates with configurable weekends.
Age & life-event calculators
- Birthday CountdownCount down to your next birthday from your date of birth.
- Anniversary CalculatorFind your current anniversary year and a countdown to the next.
- Retirement Age CalculatorEstimate your retirement date based on birth date and target age.
- Pregnancy Due Date CalculatorEstimate the due date from the last menstrual period (LMP).
- Pregnancy Week CalculatorFind the current pregnancy week from an LMP or due date.
- Conception Date CalculatorEstimate the conception date from the due date.
Utility calculators
Date from today
Featured values shown — every value from 1 to 365 has its own page.
- 1 day from today
- 2 days from today
- 3 days from today
- 5 days from today
- 7 days from today
- 10 days from today
- 14 days from today
- 21 days from today
- 30 days from today
- 45 days from today
- 60 days from today
- 75 days from today
- 90 days from today
- 100 days from today
- 120 days from today
- 150 days from today
- 180 days from today
- 200 days from today
- 270 days from today
- 365 days from today
Days ago
Featured values shown — every value from 1 to 365 has its own page.
Business days from today
Featured values — every value from 1 to 365 has its own page.
- 1 business day from today
- 2 business days from today
- 3 business days from today
- 4 business days from today
- 5 business days from today
- 7 business days from today
- 10 business days from today
- 14 business days from today
- 15 business days from today
- 20 business days from today
- 21 business days from today
- 30 business days from today
- 45 business days from today
- 60 business days from today
- 75 business days from today
- 90 business days from today
- 120 business days from today
- 150 business days from today
- 180 business days from today
- 250 business days from today
Business days ago
Featured values — every value from 1 to 365 has its own page.
- 1 business day ago
- 2 business days ago
- 3 business days ago
- 4 business days ago
- 5 business days ago
- 7 business days ago
- 10 business days ago
- 14 business days ago
- 15 business days ago
- 20 business days ago
- 21 business days ago
- 30 business days ago
- 45 business days ago
- 60 business days ago
- 75 business days ago
- 90 business days ago
- 120 business days ago
- 150 business days ago
- 180 business days ago
- 250 business days ago
Countdown tools
- Days until ChristmasChristmas (Dec 25)
- Days until New Year's DayNew Year (Jan 1)
- Days until HalloweenHalloween (Oct 31)
- Days until Valentine's DayValentine's Day (Feb 14)
- Days until SummerSummer (Jun 21)
- Days until ThanksgivingThanksgiving (4th Thu of Nov)
- Days until Black FridayBlack Friday (day after Thanksgiving)
- Days until Cyber MondayCyber Monday (Mon after Thanksgiving)
- Days until EasterEaster (moves each year)
- Days until Mother's DayMother's Day (2nd Sun of May)
- Days until Father's DayFather's Day (3rd Sun of Jun)
- Days until Independence DayIndependence Day (Jul 4)
- Days until Labor DayLabor Day (1st Mon of Sep)
- Days until Memorial DayMemorial Day (last Mon of May)
- Days until Presidents' DayPresidents' Day (3rd Mon of Feb)
- Days until Veterans DayVeterans Day (Nov 11)
- Days until St. Patrick's DaySt. Patrick's Day (Mar 17)
- Days until April Fools' DayApril Fools' Day (Apr 1)
- Days until Earth DayEarth Day (Apr 22)
- Days until Canada DayCanada Day (Jul 1)
- Days until Boxing DayBoxing Day (Dec 26)
- Days until Australia DayAustralia Day (Jan 26)
- Days until Anzac DayAnzac Day (Apr 25)
- Days until SpringSpring (Mar 20)
- Days until FallFall (Sep 22)
- Days until WinterWinter (Dec 21)
- Days until School StartSchool starts (Sep 1)
- Days until Summer BreakSummer break (Jun 15)
- Days until Spring BreakSpring break (Mar 15)
- Days until GraduationGraduation (May 30)
- Days until RamadanRamadan (approximate)
- Days until Eid al-FitrEid al-Fitr (approximate)
- Days until Eid al-AdhaEid al-Adha (approximate)
- Days until PassoverPassover (approximate)
- Days until HanukkahHanukkah (approximate)
- Days until DiwaliDiwali (approximate)
Age by birth year
Need a year not listed? Use the Age Calculator to pick any date of birth.