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A leap cycle of 3750 years contains 908 leap days or 1381 intercalary months and thus overall 1,369,658 days or 45000 twelfth-of-a-year months, spanning 46381 lunations. Its mean year length is 365.2421333 days or 365 days, 5 hours, 48 minutes and 40 seconds. The mean lunar month length is 29.5305836 days or 29 days, 12 hours, 44 minutes and 2 seconds.

It is suitable for a lunisolar calendar as it has a whole number of solar years and of lunar months.

There is not a whole number of weeks in this cycle therefore it is not suitable for leap week calendars.

It can be approximated with a 376-year leap cycle with 91 leap days, which itself is close to a 62-year leap cycle with 15 leap days. It can be considered a refinement of both.