Years to Days Converter
Convert years to days instantly. 1 yr = 365.25 d. Free two-way converter with the formula and a quick reference table.
How to convert years to days
days = years × 365.25
One year equals 365.25 days, so to convert years to days you multiply by 365.25. Going the other way, one day is 0.002738 years. Both units measure time, so the conversion is an exact ratio that never changes.
10 years = 3,652.5 days. Multiply your year figure by the factor above (or just type it into the box) to convert any amount.
years to days table
| years (yr) | days (d) |
|---|---|
| 1 | 365.25 |
| 2 | 730.5 |
| 3 | 1,095.75 |
| 5 | 1,826.25 |
| 10 | 3,652.5 |
| 20 | 7,305 |
| 25 | 9,131.25 |
| 50 | 18,262.5 |
| 100 | 36,525 |
| 250 | 91,312.5 |
| 500 | 182,625 |
| 1,000 | 365,250 |
Frequently asked questions
How many days are in a year?
One year equals 365.25 days. So to convert, multiply the number of years by 365.25.
How do I convert years to days?
Multiply by 365.25, or simply enter the value in the converter above — it does the math instantly and works both ways.
Is this conversion exact?
Yes — both units measure the same quantity, so the ratio is fixed and this uses the standard internationally-agreed factor.