How to Use DATEDIF in Excel to Calculate Months and Days Between Dates

Learn the Excel DATEDIF formula to calculate the exact difference in months and days between two dates efficiently.

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The formula to calculate the difference in months and days between two dates in Excel using `DATEDIF` is `DATEDIF(start_date, end_date, "md")` for days ignoring months and years, and `DATEDIF(start_date, end_date, "m")` for complete months between the dates. Combine them for a detailed duration. However, Excel might not directly combine them in a single cell without additional steps due to its calculation specifics. Typically, you’d calculate months and days separately and then concatenate the results for a comprehensive duration representation.

FAQs & Answers

  1. What does the DATEDIF function do in Excel? The DATEDIF function calculates the difference between two dates in various units such as years, months, or days.
  2. How do I calculate the number of complete months between two dates in Excel? Use the formula DATEDIF(start_date, end_date, "m") to find the number of whole months between two dates.
  3. Can I calculate both months and days difference together in one DATEDIF formula? Excel’s DATEDIF function requires separate calculations for months and days (using "m" and "md" units) which you can then combine by concatenating the results.
  4. Why does DATEDIF sometimes return incorrect values in Excel? DATEDIF may return unexpected results if the start date is after the end date or if incorrect units are specified.

Watch More

For more tips on date calculations in Excel, explore our guides on using the NETWORKDAYS function, creating dynamic timelines, and mastering other essential date and time formulas to boost your spreadsheet skills.

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