Method
How the years between dates calculator works
Complete calendar years are advanced from the earlier date without passing the later one. Remaining months and days are then counted from that anchor.
Need the span in a single unit? The months between dates calculator and the days between dates calculator give one total each. For clock time rather than calendar dates, the hours calculator counts the hours between two times, the time card calculator totals a working week, the add time calculator sums durations and the military time converter reads 24-hour times; all of them are in the time calculators collection.
Example
Years between dates calculator example
15 June 2015 to 2 September 2026 is 11 complete years, with the remaining months and days reported separately.
FAQ
Years between dates calculator FAQ
Why is the elapsed-duration figure slightly different?
Complete calendar years respect leap years and month lengths; dividing total days by 365.25 is an average, so the two can differ.
Are leap days included?
Yes. Every calendar day in the span is counted, including 29 February.
Does the order of the dates matter?
No. The span is positive and the result notes which date came first.
I'm checking whether I've held an investment long enough for long-term capital gains tax treatment — does this help?
Yes. In the US, long-term capital gains treatment generally requires holding an asset for more than one complete year. Enter your purchase date and today's date above to see the exact holding period in years, months and days.
I'm trying to find out how many years are left on my mortgage or loan — is this the right tool?
This calculator measures the years between two dates you choose, such as today and a stated payoff date, but it doesn't know your balance, rate or payment schedule. Use a payoff calculator to work out your actual remaining term from those numbers.
I'm counting the years until retirement or a specific age — what should I use?
Enter your birth date or today's date and the target date above to see the exact years, months and days remaining. To see how that timeline affects your savings and contributions, use the retirement age calculator.