1 second to years
1 s = 3.1689 × 10^-8 yr. Change the amount below, or read the formula and the reference table further down.
1 second equals
years
1 s = 3.1689 × 10^-8 yr
The formula
Seconds and years both measure time from the same zero, so a single multiplier does the job.
yr = s × 3.1689 × 10^-8
Going the other way? Convert years to seconds.
Seconds to years table
Values either side of 1 s.
| Seconds (s) | Years (yr) |
|---|---|
| -4 | -1.2675 × 10^-7 |
| -3.5 | -1.1091 × 10^-7 |
| -3 | -9.5066 × 10^-8 |
| -2.5 | -7.9222 × 10^-8 |
| -2 | -6.3377 × 10^-8 |
| -1.5 | -4.7533 × 10^-8 |
| -1 | -3.1689 × 10^-8 |
| -0.5 | -1.5844 × 10^-8 |
| 0 | 0 |
| 0.5 | 1.5844 × 10^-8 |
| 1 | 3.1689 × 10^-8 |
| 1.5 | 4.7533 × 10^-8 |
| 2 | 6.3377 × 10^-8 |
| 2.5 | 7.9222 × 10^-8 |
| 3 | 9.5066 × 10^-8 |
| 3.5 | 1.1091 × 10^-7 |
| 4 | 1.2675 × 10^-7 |
| 4.5 | 1.4260 × 10^-7 |
| 5 | 1.5844 × 10^-7 |
| 5.5 | 1.7429 × 10^-7 |
| 6 | 1.9013 × 10^-7 |
Questions people ask
- How many years are in a second?
- One second equals 3.1689 × 10^-8 years.
- How do I convert seconds to years by hand?
- Multiply the number of seconds by 3.1689 × 10^-8. For a rough check, 3.1689 × 10^-8 is close enough for most everyday use.
- What is 1 second in years?
- 1 second is 3.1689 × 10^-8 years.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.