Quick Answer
What is the age in 2020 if born in 2005?
If your birthday has happened in 2020:
2020 − 2005 = 15
If your birthday has not happened yet:
15 − 1 = 14
Possible age range: 14–15
Detailed Math (Step-by-Step)
Year-based calculation.
Step 1: Subtract years
| Birth year | 2005 |
|---|---|
| Target year | 2020 |
| Difference | 2020 − 2005 = 15 |
Step 2: Birthday unknown → range
| Birthday passed | 15 |
|---|---|
| Birthday not yet | 14 |
| Range | 14–15 |
Final: 2005 age in 2020 is 14–15.
Quick Lookup Table
Nearby years around 2020.
| Year | Age (birthday passed) | Possible range |
|---|---|---|
| 2015 | 10 | 9–10 |
| 2016 | 11 | 10–11 |
| 2017 | 12 | 11–12 |
| 2018 | 13 | 12–13 |
| 2019 | 14 | 13–14 |
| 2020 | 15 | 14–15 |
| 2021 | 16 | 15–16 |
| 2022 | 17 | 16–17 |
| 2023 | 18 | 17–18 |
| 2024 | 19 | 18–19 |
| 2025 | 20 | 19–20 |
Range differs by 1 year because the exact birthday date is unknown.
Instant Calculator
Change birth year and target year.