year yr
365.25 days = 31,557,600 seconds (Julian year). Calendar years differ.
Note: Julian year of exactly 365.25 days; calendar years vary.
Quick convert — year to popular units
Live converter, three directions. Type any value to update all three.
year
second
1 yr = 31,557,600s
year
millisecond
1 yr = 31,557,600,000ms
year
microsecond
1 yr = 3.16e+13μs
Conversion table — year to every Time unit
All values for 1 yr (forward) and 1 reverse unit → {symbol}.
| To / From | 1 yr = | 1 to-unit = |
|---|---|---|
| second (s) | 31,557,600 s | 3.168809e-8 yr |
| millisecond (ms) | 31,557,600,000 ms | 3.168809e-11 yr |
| microsecond (μs) | 3.155760e+13 μs | 3.168809e-14 yr |
| nanosecond (ns) | 3.155760e+16 ns | 3.168809e-17 yr |
| minute (min) | 525,960 min | 1.901285e-6 yr |
| hour (h) | 8,766 h | 0.00011408 yr |
| day (d) | 365.25 d | 0.00273785 yr |
| week (wk) | 52.17857143 wk | 0.01916496 yr |
| fortnight (fn) | 26.08928571 fn | 0.03832991 yr |
| decade (dec) | 0.1 dec | 10 yr |
| century (c) | 0.01 c | 100 yr |
Frequently Asked Questions
What does yr stand for?
year (yr) is a unit of Time.
How many yr are in 1 s?
1 s = 31,557,600 yr, so 1 yr = 3.1688e-8 s.
Is this the SI base unit?
No. year is one of several units in the Time category. The SI base is s.
Common conversions from year
#1
year (yr) → second (s)
Convert year (yr) to second.
#2year (yr) → millisecond (ms)
Convert year (yr) to millisecond.
#3year (yr) → microsecond (μs)
Convert year (yr) to microsecond.
#4year (yr) → nanosecond (ns)
Convert year (yr) to nanosecond.
#5year (yr) → minute (min)
Convert year (yr) to minute.
#6year (yr) → hour (h)
Convert year (yr) to hour.
#7year (yr) → day (d)
Convert year (yr) to day.
#8year (yr) → week (wk)
Convert year (yr) to week.