Coptic to Gregorian Date Converter

Enter a date in the Coptic calendar and the tool returns the equivalent date in the Gregorian calendar using the standard relationship between the two systems.

1. 1

   Step 1

   Enter the complete Coptic date — day, month, and year.

2. 2

   Step 2

   We apply both systems' rules: a Coptic year runs about 365 days against the Gregorian 365 (≈0 days apart each year).

3. 3

   Step 3

   The result shows the correct Gregorian day, with Gregorian leap years applied date by date.

• 1

  Coptic and Gregorian dates do not map one-to-one — the two systems start from different epochs and count leap years differently, so enter the full Coptic date and read the Gregorian equivalent instead of shifting the year by a fixed offset.

• 2

  Enter the Coptic–Gregorian dates in YYYY-MM-DD format to avoid ambiguity — some conventions read 03/04 as March fourth and others as April third, and a swapped month and day silently shifts every result this page derives.

• 3

  Before a Coptic–Gregorian date goes into a booking or a flight, re-enter it in a second tool as a cross-check — pages like Coptic to Gregorian Date Converter apply fixed rules and cannot warn about a transposed input digit.

• Anniversaries do not survive conversion unchanged: a Coptic date maps to a fixed Gregorian date, but next year's Coptic anniversary lands on a different Gregorian date. Reconvert each occurrence instead of adding one year to the last result.

• Epoch offsets are pair-specific: day zero of Coptic and of Gregorian are different dates, and constants borrowed from another calendar pair are silently wrong by days or years. Use the Coptic → Gregorian relation itself, not a remembered number.