Date & Time

Easter Date Calculator (Western and Orthodox)

Enter a year to find Easter Sunday and the dates that depend on it.

By TheCalcTools Updated Formula checked and tested

Your numbers

Your results

Easter Sunday (Western)
Easter Sunday (Western)
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Good Friday
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Ash Wednesday
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Ascension Day
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Pentecost
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Orthodox Easter (Gregorian date)
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Easter Date Calculator (Western and Orthodox) by TheCalcTools

How the Easter Date Calculator (Western and Orthodox) works

Western churches celebrate Easter on the first Sunday after the ecclesiastical full moon on or after 21 March. The calculation (the computus) uses tables of the Moon’s cycle rather than the real Moon; this calculator uses the well-known anonymous Gregorian algorithm.

Orthodox churches use the Julian calendar computus. Its date is converted to the Gregorian calendar by adding the 13-day difference that applies from 1900 to 2099 (the general formula is used for other years).

The formula

Western: Meeus/Jones/Butcher algorithm; Orthodox: Meeus Julian algorithm + calendar difference

Worked example

Using the default values shown in the calculator:

Year2027
  1. In 2027 Easter Sunday is 28 March 2027; Good Friday is 26 March 2027.
  2. Orthodox Easter is 2 May 2027.

Result:

Easter Sunday (Western)28 March 2027
Good Friday26 March 2027
Ash Wednesday10 February 2027
Ascension Day6 May 2027
Pentecost16 May 2027
Orthodox Easter (Gregorian date)2 May 2027

Frequently asked questions

What are the earliest and latest dates for Easter?

Western Easter falls between 22 March and 25 April.

When is Easter 2027?

Western Easter is 28 March 2027 and Orthodox Easter is 2 May 2027.

Sources and further reading

Day of the Week Calculator (What Day Was It?)Pick any date to see which day of the week it falls on Countdown Calculator (Days Until a Date)Pick an event date to see exactly how long is left Ramadan and Eid Date CalculatorSee when the next Ramadan and Eid are expected, and how many days are left Week Number Calculator (ISO 8601)Find which week of the year a date falls in, or the start and end of any week number Day of the Year Calculator (Day Number)Pick a date to see its day number and how much of the year is left Leap Year CalculatorEnter a year to see if it is a leap year and when the next one is

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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.