Excel, Sheets and code

Copy-ready age formulas for Excel, Google Sheets and code, and how to fix the common errors.

Excel, Sheets and code

How to Calculate Age in Excel | DATEDIF Formula Guide

Learn to calculate age in Excel with the DATEDIF formula. Step-by-step examples for exact age in years, months, and days from a…12 minute read

Excel, Sheets and code

Age Calculation Formula for Developers: A Calendar-Safe Approach

Learn a calendar-safe age calculation formula for developers, including DOB logic, leap years, month-end dates, timezones, validation, and test cases.22 minute read

Excel, Sheets and code

Age Calculator Formula | Exact Age From Date of Birth

Learn the exact age calculator formula step by step. See how years, months, and days are computed from any date of birth,…13 minute read

Excel, Sheets and code

Fix Age Formula Errors in Excel & Google Sheets

Fix DATEDIF errors in Excel and Google Sheets: #NUM!, #VALUE!, #NAME?, off-by-one ages, MD quirks, and date formatting problems, causes and fixes.12 minute read

Excel, Sheets and code

How to Calculate Age in Google Sheets | Formula Guide

Calculate age in Google Sheets with the DATEDIF formula. Follow step-by-step examples to get exact age from any date of birth.16 minute read