Calculate exact age on a wedding or civil partnership date. The calculator runs entirely in your browser and pairs a focused answer with the method, assumptions and the related tools worth checking next.
Your inputs stay in this browser tab. Nothing is sent to a server to produce the result.
Review the inputs and select Calculate.
Enter a date of birth and the wedding or civil partnership date. The calculator counts complete calendar years, then complete months, then the remaining days between them, and reports the exact age reached on that date.
The count starts from the most recent birthday on or before the wedding date, adds whole calendar months from there, and finishes with the leftover days. Because it works on real calendar dates, leap years and short months are already accounted for in the result.
Someone born 14 February 1998 who marries on 14 February 2026 is exactly 28 years, 0 months and 0 days old. Enter the same two dates above and the calculator returns the same age.
Move that wedding to 13 February 2026 and the age becomes 27 years, 11 months and 30 days: a single day changes the year figure. The result is an arithmetic answer only. This page does not check legal minimum ages or any other eligibility rule, which differ by place and change over time.
Enter the birth date and the wedding date to get the exact age on the day. Each step below is a short action rather than a wall of explanation.
Use the most reliable source value available for this input.
Use the most reliable source value available for this input.
Read the result, then copy, print or share a link that reopens the same inputs.
Count complete calendar years, then calendar months, then the remaining days.
Similar tools answer different questions. Match the inputs and the reference point to the answer you actually need.
The numbers come from your inputs; this shows the shape of the calculation.
Enter the person's date of birth.
Enter the wedding or civil partnership date — the age is counted up to that day.
The exact age on the wedding date: born 14 February 1998 and married on 14 February 2026 gives exactly 28 years. The result is arithmetic only; no legal minimum age is checked.
Use exact source inputs, keep the reference date visible and verify any official rule separately.
Set the reference date to the event that actually controls the decision, not to today.
Compare the stated method here against the other tool's convention before assuming an error.
For a neighbouring calculation, open the Age at Event Calculator or the School Starting Age Calculator. To understand the reasoning first, read How to Calculate School Starting Age.
Choose another focused tool when the underlying question changes.
Understand the calendar rules, edge cases and next steps behind this calculator.
Answers about method, inputs, privacy, boundaries and responsible interpretation.
In complete calendar units: whole years first, counted from your most recent birthday on or before the wedding date, then whole months from there, and finally the remaining days. Because it works on real calendar dates, leap years and short months are already accounted for in the result.
Exactly that birthday's age, with nothing left over. Someone born on 14 February 1998 who married on 14 February 2026 was exactly 28 years, 0 months and 0 days old on the day.
Yes. Move that same wedding one day earlier, to 13 February 2026, and the age becomes 27 years, 11 months and 30 days — a single day changes the year figure, because the 28th birthday had not yet been reached.
28 years, 8 months and 6 days: 28 complete years to your birthday on 14 February 2026, then 8 complete months to 14 October 2026, and 6 days remaining after that.
No. The result is an arithmetic answer only — the calculator does not check legal minimum ages or any other eligibility rule. Those rules differ by place and change over time, so check the rules for the place of marriage separately if that matters to you.
Navjeet Kamboj is the author and editor of Age Calculator Lab. He focuses on making age, date, milestone and planning calculations easier to understand through clearly explained methods, practical examples and responsible limitations.