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Months Calculator: Count, Add, or Subtract Dates

Need to know exactly how many months are between two dates? Our Months Calculator gives you an instant, precise breakdown in months and days. You can also add or subtract any number of months from a specific date to find future or past deadlines. Free, mobile-friendly, and perfectly accurate for loans, contracts, and project planning.

Months Calculator

Find the months between two dates, or add and subtract months from any date.

Resulting date

Note: If the resulting day doesn't exist in the target month, it will be clamped to the last day (e.g. Jan 31 + 1 month = Feb 28/29).

How to Use the

Frequently Asked Questions (FAQ)

1. How do I calculate the difference between two dates?

Enter your start date and end date in the two date boxes, then press Calculate difference. The tool instantly shows the gap in years, months, and days, along with the total days, weeks, hours, and minutes between them.