Alle HowManyDays-calculators zijn gratis te embedden op jouw site. Kies hieronder een tool, kopieer het iframe-snippet en plak het in je pagina. Geen registratie, geen advertenties in de widget, geen limiet — de tools draaien volledig in de browser van je bezoeker.
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- Responsive. De widgets passen zich aan mobiel en desktop aan; pas eventueel de
heightaan (620 px werkt goed).
Days Between Dates Calculator
Calculate the exact number of days between any two dates. Free online date difference calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-between-dates/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Between Dates Calculator" allow="clipboard-write"></iframe>
Age at a Specific Date Calculator
Find out exactly how old someone was — or will be — on any date you choose. Free online age-at-a-date calculator in years, months, and days.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/age-at-date/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Age at a Specific Date Calculator" allow="clipboard-write"></iframe>
Age from Birth Year Calculator
Find out your exact age based on your birth year. Free online age calculator from birth year.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/age-from-birth-year/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Age from Birth Year Calculator" allow="clipboard-write"></iframe>
Hours in a Day Calculator
Find out how many hours are in any day — including 23- or 25-hour daylight-saving days — plus live hours elapsed and remaining today. Free online hours-in-a-day calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/how-many-hours-in-a-day/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Hours in a Day Calculator" allow="clipboard-write"></iframe>
Weeks Between Dates Calculator
Calculate the exact number of weeks and days between any two dates. Free online week difference calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/weeks-between-dates/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Weeks Between Dates Calculator" allow="clipboard-write"></iframe>
Hours & Minutes Difference Calculator
Calculate the exact hours and minutes difference between two date-time values. Free online time duration calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/hours-minutes-diff/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Hours & Minutes Difference Calculator" allow="clipboard-write"></iframe>
Age in Days & Weeks Calculator
Find out exactly how many days and weeks old you are. Free online age in days calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/age-in-days-weeks/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Age in Days & Weeks Calculator" allow="clipboard-write"></iframe>
Chinese Zodiac Sign Calculator
Discover your Chinese zodiac sign based on your birth date. Free online Chinese zodiac calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/chinese-zodiac/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Chinese Zodiac Sign Calculator" allow="clipboard-write"></iframe>
Days Until Date Calculator
Count down the days until a specific date. Free online days until date countdown calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-date/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until Date Calculator" allow="clipboard-write"></iframe>
Leap Year Checker
Check if a given year is a leap year. Free online leap year calculator and validator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/leap-year-checker/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Leap Year Checker" allow="clipboard-write"></iframe>
Holiday Date Finder
Find the exact date of any holiday in any year — Easter, Thanksgiving, Memorial Day, Mother's Day, and more.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/holiday-date-finder/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Holiday Date Finder" allow="clipboard-write"></iframe>
Day of the Week Finder
Find out which day of the week any date falls on. Free online day of the week calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/day-of-week-finder/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Day of the Week Finder" allow="clipboard-write"></iframe>
Workdays Counter
Calculate the number of working days between two dates, excluding weekends.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/workdays-counter/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Workdays Counter" allow="clipboard-write"></iframe>
Add or Subtract Days to a Date
Calculate what date it will be a certain number of days from now, or the date a given number of days before a date. Free online date math tool.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/date-plus-days/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Add or Subtract Days to a Date" allow="clipboard-write"></iframe>
Timezone Converter
Convert time between different time zones instantly.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/timezone-converter/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Timezone Converter" allow="clipboard-write"></iframe>
Moon Phase Calculator
Find out the moon phase for any date. Check if it's new moon, first quarter, full moon, or last quarter.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/moon-phase/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Moon Phase Calculator" allow="clipboard-write"></iframe>
Week Number Calculator
Find the ISO week number for any date, or get the exact date range of any week of the year. Free online week-number calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/week-number-calculator/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Week Number Calculator" allow="clipboard-write"></iframe>
Countdown Timer
Count down the days, hours, minutes and seconds until a specific date and time.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/countdown-timer/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Countdown Timer" allow="clipboard-write"></iframe>
Day of the Year Calculator
Find out which day of the year any date is, how many days are left in the year, and whether it is a leap year. Free online day-of-year calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/day-of-year/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Day of the Year Calculator" allow="clipboard-write"></iframe>
Days Until Christmas – Live Countdown to December 25
Live countdown to Christmas: see exactly how many days, hours, minutes and seconds until December 25. The free countdown rolls over to next year automatically.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-christmas/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until Christmas – Live Countdown to December 25" allow="clipboard-write"></iframe>
Days Until New Year – Live Countdown to January 1
Live countdown to New Year: see exactly how many days, hours, minutes and seconds until January 1. The countdown automatically starts over for the next year.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-new-year/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until New Year – Live Countdown to January 1" allow="clipboard-write"></iframe>
Days Until Summer – Live Countdown to June 21
Live countdown to summer: see exactly how many days, hours, minutes and seconds until June 21, the first day of summer. The countdown resets automatically each year.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-summer/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until Summer – Live Countdown to June 21" allow="clipboard-write"></iframe>
Days Until Black Friday – Live Countdown to the Last Friday in November
Live countdown to Black Friday: see exactly how many days, hours, minutes and seconds until the last Friday in November. The date updates automatically every year.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-black-friday/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until Black Friday – Live Countdown to the Last Friday in November" allow="clipboard-write"></iframe>
Days Until Halloween – Live Countdown to October 31
Live countdown to Halloween: see exactly how many days, hours, minutes and seconds until October 31. The free countdown rolls over to next year automatically.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/days-until-halloween/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Days Until Halloween – Live Countdown to October 31" allow="clipboard-write"></iframe>
Birthday Countdown Calculator
Count down the days, hours, and minutes until your next birthday. Free online birthday countdown calculator.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/countdown-to-birthday/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Birthday Countdown Calculator" allow="clipboard-write"></iframe>
Unix Timestamp Converter
Convert a Unix timestamp (epoch) to a human-readable date and time, or any date and time to a Unix timestamp. Free online epoch converter.
Plak deze code op jouw site:
<iframe src="https://howmanydays.app/unix-timestamp-converter/?embed=1" width="100%" height="620" style="border:0;border-radius:8px;max-width:640px" loading="lazy" title="Unix Timestamp Converter" allow="clipboard-write"></iframe>