Meet the Months Calculator—a smooth, user-friendly tool crafted to simplify any month-based time calculation you can throw at it.

This modern calculator handles the months between two dates, adding months to a start date, and subtracting them.

How to Use the Months Calculator?

Using a monthly calculator is simple and efficient. Here’s how it works:

Mode 1: Calculate Months Between Dates

1️⃣ Enter the Start Date and End Date – Input the two dates you want to measure the period between.

2️⃣ Choose whether to include the end date – Decide if the final date should be counted in the calculation.

3️⃣ Calculate Duration – Instantly get the total number of months between the selected dates.

Mode 2: Add or Subtract Months from a Date

1️⃣ Enter the Starting Date – Choose the base date you want to modify.

2️⃣ Select Add or Subtract – Decide whether to increase or decrease the months.

3️⃣ Enter the Number of Months – Specify how many months to adjust.

4️⃣ Calculate the Result – Instantly get the adjusted date.

💡 Bonus Tip: Use this tool to efficiently track loan durations, project timelines, and personal milestones.

How to Manually Calculate Months Between Dates?

If you ever need to count months manually, follow these steps:

Step 1: Identify the Date Range

Determine the start and end dates for your calculation.

Step 2: Count the Full Months

• Count each full month between the two dates.
• If the dates do not align perfectly (e.g., March 10th to June 25th), count full months and add partial months accordingly.

Example Calculation:

• Start Date: February 26th, 2025
• End Date: October 27th, 2030
• Total full months: 67 months (5 years + 7 months)

Instead of doing this manually every time, a Months Calculator gives you the result instantly.