Duration Calculator

  • Days to Months Calculator
    Convert days to months instantly. Enter any number of days and get the equivalent months using the average 30.4375 days per month.
  • Days to Weeks Calculator
    Convert days to weeks instantly. Enter any number of days to get the exact number of weeks, plus whole weeks and remaining days. Free time unit converter.
  • Days to Years Calculator
    Convert any number of days into years instantly. Uses 365.25 days per year to account for leap years. Free, fast, and accurate days-to-years converter.
  • Hours to Days Calculator
    Convert hours to days instantly. Enter any number of hours and get the equivalent number of days using days = hours ÷ 24.
  • Minutes to Decimal Calculator
    Convert minutes to decimal hours instantly. Divide minutes by 60 to get decimal hours for timesheets, payroll, and billing.
  • Months to Years Calculator
    Convert months to years instantly. Enter a number of months and get the result in decimal years plus whole years and remaining months.
  • Minutes to Days Calculator
    Convert minutes to days instantly. Enter any number of minutes to see the equivalent in days (and hours) using days = minutes ÷ 1440.
  • Weeks to Months Calculator
    Convert weeks to months instantly. Enter the number of weeks and get the equivalent in months using the average 4.34524 weeks per month.
  • Date Plus Weeks Calculator
    Add or subtract weeks to any date and get the resulting calendar date and day of week. Handles leap years; optional Japanese-era year input.
  • Travel Time Between Two Cities Calculator (with Time Zones)
    Calculate the true elapsed travel time between two cities in different time zones. Enter local departure and arrival times plus each city's UTC offset (DST aware).
  • Date & Time Duration Calculator
    Calculate the exact duration between two dates and times with this Date & Time Duration Calculator. Input start and end dates/times to find precise intervals for project planning, billing, or event scheduling.
  • Binge Watching Calculator
    Find out how many days it takes to binge-watch a TV series. Enter episodes, runtime, and your daily viewing hours to get total watch time instantly.
  • Elapsed Days and Time Between Two Date-Times
    Calculate the elapsed days and time between two date-times (end minus start). Get weeks, days, hours, minutes, seconds, and an H:M:S breakdown instantly.
  • Date-Time Plus Elapsed Time Calculator
    Add or subtract days, hours, minutes and seconds from a start date-time. Get the resulting Gregorian date, time and day of the week instantly.
  • Time Spent on Email Calculator
    Estimate how many hours you spend on email. Enter emails per day, minutes per email, and working days to see total hours, days, and workdays.
  • English Learning Time Calculator
    Estimate how many weeks and months you need to learn English. Enter your current and target CEFR level plus weekly study hours.
  • Drive Time Calculator
    Estimate how long a trip takes. Enter distance and average speed (mph or km/h) to get drive time in hours and minutes instantly.
  • Day of the Year Calculator
    Find out which day of the year a given date is (1-366). Calculate the ordinal day number, days remaining, and total days, with full leap-year support.
  • Minute Calculator
    Calculate the total number of minutes between a start and end time. Get the result in minutes, decimal hours, and hours & minutes instantly.
  • Subtract Time Calculator
    Subtract hours, minutes and seconds from a start time. Get the resulting clock time in 24-hour format, wrapped correctly across midnight.
  • Time Difference Calculator
    Calculate the difference between two times in hours, minutes, and seconds. Enter a start and end time to get the exact elapsed duration instantly.
  • Week Calculator
    Free week calculator to find how many weeks and days are between two dates. Get total weeks, days, and the exact week count fast.
  • Audiobook Speed Calculator
    Calculate how long an audiobook takes at 1.25x, 1.5x, 2x or any speed. See your adjusted listening time and how much time you save.
  • Reading Time Calculator
    Estimate how long a text takes to read. Enter word count and reading speed (WPM) to get reading time in minutes and seconds instantly.

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