Month Calculator
Find the exact number of whole months between two dates, plus the full years, months, and days breakdown.
How this is calculated
The whole-months figure counts complete calendar months between your two dates. Any leftover days that don't add up to a full month appear separately in the years/months/days breakdown, using the actual number of days in each month rather than a flat assumption.
Frequently asked questions
How many months are between two dates?
Enter a start and end date and select Calculate. The result shows the total number of whole calendar months elapsed, plus a full years/months/days breakdown for the leftover days that don't make up a full month.
Built and maintained by Ready Utilities, founded by Cedrick Reese, a retired veteran and web developer. Every formula and convention on this site is checked against real, current sources before publishing. This calculator runs entirely in your browser, nothing you enter is sent anywhere. Spot something that looks wrong? Let us know.