In some situations, the months and day result of this age calculator may be confusing, especially when the starting date is the end of a month. For example, we count Feb. 20 to Mar. 20 to be one month. However, there are two ways to calculate the age from Feb. 28, 2022 to Mar. 31, 2022. If we consider Feb. 28 to Mar. 28 to be one month, then the result is one month and 3 days. If we consider both Feb. 28 and Mar. 31 as the end of the month, then the result is one month. Both calculation results are reasonable. Similar situations exist for dates like Apr. 30 to May 31, May 30 to June 30, etc. The confusion comes from the uneven number of days in different months. In our calculations, we use the former method., In our calculations, we use the former method. This free age calculator computes age in terms of years, months, weeks, days, hours, minutes, and seconds, given a date of birth., Someone who was born in 2017 is 7 or 8 years old. The number of full years from 2017 to June 25, 2025 is 7 or 8. If you were born in 2017, you are 89-101 months old or 2733-3097 days old (depends on the exact day of birth, see the table below).