Month Counter Calculator
Calculate the exact number of months, days, and time between two dates
Count Months Between Dates
Select the starting date for the calculation
Select the ending date for the calculation
Example Calculations
Pregnancy Duration
Start: January 1, 2024 (conception)
End: October 1, 2024 (due date)
Result: 9 full months, 273 days
Use case: Tracking pregnancy milestones
Subscription Planning
Start: March 15, 2024
End: March 15, 2025
Result: 12 full months, 365 days
Use case: Annual subscription duration
Project Timeline
Start: June 1, 2024
End: December 31, 2024
Result: 6 full months, 213 days
Use case: Project duration planning
Month Information
Leap Year Rules
Divisible by 4? → Likely leap year
Divisible by 100? → Not leap year
Divisible by 400? → Leap year
2000: Leap year (÷400)
1900: Not leap year (÷100)
2024: Leap year (÷4)
Calculator Tips
Counts only complete full months
Partial months shown as remaining days
Accounts for leap years automatically
Useful for planning and tracking
Understanding Month Calculations
How Month Counting Works
The month calculator counts complete calendar months between two dates. A full month means the same day of the month has been reached in the next month. For example, from January 15 to February 15 is exactly one full month.
Calculation Method:
- •Count complete months from start to end date
- •Account for varying month lengths
- •Handle leap years correctly
- •Show remaining partial time as days
Practical Applications
Financial Planning
Calculate subscription periods, loan terms, rental agreements
Project Management
Track project durations, milestone planning, timeline estimation
Health & Life Events
Pregnancy tracking, age calculations, anniversary planning
Accuracy Note: Our calculator uses precise date arithmetic and accounts for all calendar irregularities including leap years.