Age today by birth month
The exact age depends on the birthday. This table shows how old someone born on the first of each month of 2021 is today, and when they next have a birthday.
| Born on | Age today | Next birthday |
|---|---|---|
| January 1, 2021 | 5 years, 9 months | Turns 6 on Jan 1, 2027 |
| February 1, 2021 | 5 years, 8 months | Turns 6 on Feb 1, 2027 |
| March 1, 2021 | 5 years, 7 months | Turns 6 on Mar 1, 2027 |
| April 1, 2021 | 5 years, 6 months | Turns 6 on Apr 1, 2027 |
| May 1, 2021 | 5 years, 5 months | Turns 6 on May 1, 2027 |
| June 1, 2021 | 5 years, 4 months | Turns 6 on Jun 1, 2027 |
| July 1, 2021 | 5 years, 3 months | Turns 6 on Jul 1, 2027 |
| August 1, 2021 | 5 years, 2 months | Turns 6 on Aug 1, 2027 |
| September 1, 2021 | 5 years, 1 month | Turns 6 on Sep 1, 2027 |
| October 1, 2021 | 5 years | Turns 6 on Oct 1, 2027 |
| November 1, 2021 | 4 years, 11 months | Turns 5 on Nov 1, 2026 |
| December 1, 2021 | 4 years, 10 months | Turns 5 on Dec 1, 2026 |
How to work out the age for 2021
Subtract 2021 from the current year: 2026 − 2021 = 5. That is the age a person reaches on their birthday in 2026. Until the birthday comes, take one off, which gives 4. For example, someone born on December 1, 2021 is 4 today, because their 2026 birthday is still to come.
The same rule works for any year: the age on the birthday is the year minus 2021. In a spreadsheet, put the date of birth in A1 and use =DATEDIF(A1,TODAY(),"y") for the age in full years.
Age in coming years
| Year | Age after the birthday | Age before the birthday |
|---|---|---|
| 2025 | 4 | 3 |
| 2026 | 5 | 4 |
| 2027 | 6 | 5 |
| 2028 | 7 | 6 |
| 2029 | 8 | 7 |
| 2030 | 9 | 8 |
| 2031 | 10 | 9 |
| 2032 | 11 | 10 |
| 2033 | 12 | 11 |
| 2034 | 13 | 12 |
| 2035 | 14 | 13 |
| 2036 | 15 | 14 |
Milestone birthdays for people born in 2021
| Age | Year | When |
|---|---|---|
| 1 | 2022 | passed |
| 5 | 2026 | this year |
| 10 | 2031 | in 5 years |
| 13 | 2034 | in 8 years |
| 16 | 2037 | in 11 years |
| 18 | 2039 | in 13 years |
| 21 | 2042 | in 16 years |
| 25 | 2046 | in 20 years |
| 30 | 2051 | in 25 years |
| 40 | 2061 | in 35 years |
| 50 | 2071 | in 45 years |
| 60 | 2081 | in 55 years |
| 65 | 2086 | in 60 years |
2021: generation, zodiac and calendar
People born in 2021 belong to Generation Alpha, the group born from 2013 to 2024. In the Chinese zodiac 2021 is mostly the Year of the Ox; babies born before Chinese New Year that year count as the Rat. 2021 was a common year with 365 days, and January 1, 2021 fell on a Friday.
Other birth years: born in 2018 · born in 2019 · born in 2020 · born in 2022 · born in 2023 · born in 2024. For any date of birth, use the age calculator; to count down to the next one, try the birthday countdown.
Frequently asked questions
How old is someone born in 2021?
In 2026, someone born in 2021 is 5 years old after their birthday this year, and 4 before it. Enter the exact date of birth above for the age in years, months and days.
What year does someone born in 2021 turn 18?
2039. Add the age to the birth year: 2021 + 18 = 2039.
What generation is someone born in 2021?
Generation Alpha, which covers people born from 2013 to 2024.
What is the Chinese zodiac for 2021?
2021 is the Year of the Ox. The Chinese year begins at Chinese New Year in late January or February, so people born in January or early February 2021 belong to the Year of the Rat.
Was 2021 a leap year?
No. 2021 had 365 days. The nearest leap years are 2020 and 2024.
How many days old is someone born on January 1, 2021?
2,111 days old today, or about 301 weeks.
How do I count the days until a date?
Pick the date in the days until calculator. It counts calendar days from today, not counting today, and shows weeks, months and business days too.
Does the count include today?
No. A date tomorrow is 1 day away. For the days between two dates you can choose to include the end date in the date duration calculator.