Time conversion
Year (365 days) to Day
One year (365 days) is 365 days. Enter any value below to convert it instantly, or use the reference table further down for the numbers you need most often.
Conversion rate
1 yr = 365 d
d = yr × 365
1 yr = 365 d
Reference
Year (365 days) to Day table
The values people look up most often, rounded for practical use.
| Year (365 days) (yr) | Day (d) | Written out |
|---|---|---|
| 1 yr | 365 d | 1 years = 365 days |
| 2 yr | 730 d | 2 years = 730 days |
| 3 yr | 1,095 d | 3 years = 1,095 days |
| 5 yr | 1,825 d | 5 years = 1,825 days |
| 10 yr | 3,650 d | 10 years = 3,650 days |
| 15 yr | 5,475 d | 15 years = 5,475 days |
| 20 yr | 7,300 d | 20 years = 7,300 days |
| 25 yr | 9,125 d | 25 years = 9,125 days |
| 50 yr | 18,250 d | 50 years = 18,250 days |
| 100 yr | 36,500 d | 100 years = 36,500 days |
| 250 yr | 91,250 d | 250 years = 91,250 days |
| 500 yr | 182,500 d | 500 years = 182,500 days |
| 1,000 yr | 365,000 d | 1,000 years = 365,000 days |
How to convert years to days
Multiply the number of years by 365. That is the whole calculation: d = yr × 365. To go back the other way, divide instead, or multiply by 0.0027397.
Worked example: 12 years × 365 = 4,380 days.
Where this conversion comes up
Time conversions are exact up to weeks. Months and years are not — a month here is treated as 30 days and a year as 365, which is fine for rough planning but wrong for contracts. For calendar-accurate durations use the date calculator, which counts real months and leap years.
Quick answers
- 1 year (365 days) = 365 days
- 2 years = 730 days
- 5 years = 1,825 days
- 10 years = 3,650 days
- 100 years = 36,500 days
More conversions
Other time conversions
Answers
Frequently asked questions
d = yr × 365. The converter above applies it for you, but the formula is useful in a spreadsheet — put your value in column A and the formula in column B.Related tools
All 36 tools →Convert anything else
The full converter handles length, weight, temperature, area, volume, speed, data and time in one place.