Years to Seconds Converter
Convert year to second instantly. Type a value below — the result updates as you type.
When you need to convert year to second
Time conversions help with project planning, billing, cooking, subscriptions and any schedule that mixes seconds, minutes, hours, days or longer spans.
Typical values: 0.5 yr is about 1.57785e+07 s, and 5 yr works out to roughly 1.57785e+08 s. Because the ratio is fixed at 3.1557e+07, you can scale any amount linearly — doubling the years doubles the seconds.
Calendar months and years vary in length, so longer time conversions use standard average values rather than a fixed calendar date.
How to convert year to second
One year equals 3.1557e+07 seconds. To convert, multiply the number of years by 3.1557e+07:
seconds = years × 3.1557e+07
For example, 10 years × 3.1557e+07 = 3.1557e+08 seconds.
Years to seconds conversion table
| Time (yr) | Seconds (s) |
|---|---|
| 1 yr | 3.1557e+07 s |
| 2 yr | 6.31139e+07 s |
| 3 yr | 9.46709e+07 s |
| 5 yr | 1.57785e+08 s |
| 10 yr | 3.1557e+08 s |
| 20 yr | 6.31139e+08 s |
| 50 yr | 1.57785e+09 s |
| 100 yr | 3.1557e+09 s |
FAQ
How many seconds are in a year?
One year = 3.1557e+07 seconds.
How do I convert seconds back to years?
Divide by 3.1557e+07, or use the seconds to years converter.