Easter Date Calculator

Compare Western and Orthodox Easter dates for up to thirty years, with Good Friday, Easter Monday, Ascension and Pentecost dates.

Starts with an editable example. Replace the dates and rules with your own.

Your calculation

Inputs stay on this page unless you choose to save them.

Ready when you are

Choose your dates.

Select your counting rules and calculate.

How to use this calculator

Choose a year range from 1900 through 2100 and the calculation tradition. Download the calculated dates as calendar events.

Western computus uses Gregorian rules. Orthodox computus uses Julian rules with Gregorian date display. Associated dates are fixed offsets; local churches may transfer observances or follow different conventions.

A worked example

In 2026, Western Easter is April 5 and Orthodox Easter is April 12. Both fall on April 16 in 2028.

Are these public holiday dates?

No. Public holiday status and local observance rules are separate from the computus dates calculated here.

Which calendar and years are supported?

Each result states its calendar, time scale, precision and supported range. Batch converters accept up to 100 nonempty input lines and retain invalid rows. Copy, CSV and print include the calculation rules. Calendar downloads appear when a result contains dated events. Calculations run in your browser; no reminders or jobs are scheduled.

What happens to my dates?

Calculations run on your device. Saving a calculation is optional and keeps it in this browser. A setup link contains the dates and settings you entered; anyone with the link can read them. Use one tab per saved calculator. Clear saved data from Privacy & settings.