Practical age, DOB, and Excel guides in one place.
Use these short articles to calculate age from date of birth, work faster in Excel, and understand common DOB workflows without opening a spreadsheet first.
Use these short articles to calculate age from date of birth, work faster in Excel, and understand common DOB workflows without opening a spreadsheet first.
Learn the basic manual method and how to turn it into a fast, accurate result with the site calculator.
Read articleUse Excel formulas to derive age from a birth date and keep your sheets consistent.
Read articleSee how the calculator handles years, months, days, and next birthday timing.
Read articleEstimate a likely DOB when you only know the person's current age span.
Read articleUse exact age results when you need a clean answer for forms or records.
Read articleA quick guide to when a reverse DOB calculator is the right choice.
Read article