second s
SI base unit of time.
Quick convert — second to popular units
Live converter, three directions. Type any value to update all three.
second
millisecond
1 s = 1,000ms
second
microsecond
1 s = 1,000,000μs
second
nanosecond
1 s = 1,000,000,000ns
Conversion table — second to every Time unit
All values for 1 s (forward) and 1 reverse unit → {symbol}.
| To / From | 1 s = | 1 to-unit = |
|---|---|---|
| millisecond (ms) | 1,000 ms | 0.001 s |
| microsecond (μs) | 1,000,000 μs | 1.000000e-6 s |
| nanosecond (ns) | 999,999,999.9999999 ns | 1.000000e-9 s |
| minute (min) | 0.01666667 min | 60 s |
| hour (h) | 0.00027778 h | 3,600 s |
| day (d) | 1.157407e-5 d | 86,400 s |
| week (wk) | 1.653439e-6 wk | 604,800 s |
| fortnight (fn) | 8.267196e-7 fn | 1,209,600 s |
| year (yr) | 3.168809e-8 yr | 31,557,600 s |
| decade (dec) | 3.168809e-9 dec | 315,576,000 s |
| century (c) | 3.168809e-10 c | 3,155,760,000 s |
Frequently Asked Questions
What does s stand for?
second (s) is a unit of Time.
How many s are in 1 s?
1 s = 1 s, so 1 s = 1 s.
Is this the SI base unit?
Yes — second is the SI base unit for Time.
Common conversions from second
#1
second (s) → millisecond (ms)
Convert second (s) to millisecond.
#2second (s) → microsecond (μs)
Convert second (s) to microsecond.
#3second (s) → nanosecond (ns)
Convert second (s) to nanosecond.
#4second (s) → minute (min)
Convert second (s) to minute.
#5second (s) → hour (h)
Convert second (s) to hour.
#6second (s) → day (d)
Convert second (s) to day.
#7second (s) → week (wk)
Convert second (s) to week.
#8second (s) → fortnight (fn)
Convert second (s) to fortnight.