Years Between Dates Calculator
Count the exact number of calendar years between two dates, with a decimal value and the total day count.
Pick two dates
Enter a start date and an end date to see the years between.
Frequently asked questions
What counts as a full year?
We use calendar years. From Jan 15, 2020 to Jan 15, 2024 is 4 full years. From Jan 15, 2020 to Jan 14, 2024 is 3 full years.
What is decimal years?
Decimal years convert the total days into a single number using an average year length of 365.25 days, which accounts for leap years.
Does this handle leap years?
Yes. The calendar count uses real calendar arithmetic, and the decimal value uses 365.25 days per year.
How is this different from Date Difference?
Date Difference shows all units at once. This tool focuses on years with both calendar and decimal precision.