Months Calculator
This is free online months calculator to find months between dates. You can add or subtract months to the start date to know the exact date. So, choose any option and click on the calculate button.
Months Between Dates
Add Months
Subtract Months
Start Date
End Date
How to Use This Calculator
- Choose your calculation type from the options above (Between Dates, Add Months, or Subtract Months)
- For Between Dates: Select your start and end dates to find the number of months between them
- For Add Months: Choose a start date and enter the number of months you want to add
- For Subtract Months: Select a date and enter the number of months to subtract
- Click the calculate button to see your results instantly
Months Calculation
Between Dates:
Months = End Date - Start Date
Add Months:
Result Date = Start Date + (Months)
Subtract Months:
Result Date = Start Date - (Months)
All calculations account for:
- Leap years (366 days)
- Regular years (365 days)
- Varying month lengths
- Partial months (with decimal points)
Frequently Asked Questions
How accurate is the months calculator?
Our months calculator provides accurate calculations by calculating months between dates.
However, the result will be in rounded to one decimal place for accuracy.
Can I use this for project planning?
You can use this calculator for project planning. However, for critical projects,
always consult with your project manager as they may use specific project management standards
for months calculations.
How are months calculated between dates?
The calculator takes the difference between two dates in months.
The result includes partial months for more correct results.
Why do I see decimal points in the results?
Decimal points in the results are the partial months. For example, 3.5 months means three
and a half months. This provides more accurate results than rounding to whole months.
