Calc Tools

Date calculator

Days between dates, a date plus or minus a period, and your age.

Please enter valid numbers.

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Help & info

About this calculator

Pick two dates to see the number of days, weeks and the difference in years, months and days. Add or subtract days, weeks, months or years to get the resulting date with its weekday. Enter a birth date to see the exact age and the days until the next birthday.

How it is calculated

Days = difference of the two dates (calendar days, no time of day). For months and years the day of the month is kept; if the target month is shorter, its last day is used (31 Jan + 1 month = 28 Feb).

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