Months Between Dates Calculator

Calculate the number of months between two dates.

About this tool

Enter two dates to calculate months between them - perfect for employment and contract duration....

Result

Enter values to see the result.

Months Between Dates Calculator - Employment & Contract Duration Tool

Calculate the exact number of months between two dates for employment duration, contract length, baby age tracking, and subscription analysis. HR-grade accuracy with partial month support.

How to Calculate Months Between Dates

1

Input Start Date

Select the beginning date, such as an employment start date, contract signing date, or birth date.

2

Input End Date

Choose the ending date, typically today for current duration or a specific end date for completed periods.

3

See Total Months

Instantly view the number of complete months between your dates, calculated with precision for HR and business use.

4

Use for HR & Contracts

Apply the result to employment duration calculations, contract length verification, subscription period analysis, or age tracking in months.

Frequently Asked Questions

How do I calculate employment duration in months?

Enter the employee's start date and either today's date (for current employees) or their end date (for former employees). The calculator will show the total months of service, useful for benefits and seniority calculations.

Does this calculator handle partial months?

The calculator shows complete months. For example, 45 days would show as 1 month (with approximately 15 days remaining). This is the standard method for employment and contract calculations.

Can I calculate a baby's age in months?

Yes! Enter the baby's birth date and today's date to see their age in months. This is particularly useful for tracking developmental milestones in the first two years.

How does this work with different month lengths?

The calculator counts complete calendar months, regardless of whether they have 28, 29, 30, or 31 days. This provides consistent results for business and HR purposes.

Is this useful for subscription period analysis?

Absolutely! Calculate how many months a subscription has been active, determine billing cycles, or analyze subscription retention periods with precision.

HR-Grade Precision

Trusted by HR professionals and contract managers.

HR-Grade Accuracy
Partial Month Support
Confidential Calculation
Instant Results
Free for Everyone