How to convert milliseconds to seconds
s = ms × 0.001Multiply the value in milliseconds by 0.001. To go the other way, multiply by 1,000 (or divide by 0.001).
A millisecond is smaller than a second: it takes 1,000 milliseconds to make one second.
Worked examples
- 1 millisecond1 ms × 0.001 = 0.001 s
- 5 milliseconds5 ms × 0.001 = 0.005 s
- 10 milliseconds10 ms × 0.001 = 0.01 s
- 20 milliseconds20 ms × 0.001 = 0.02 s
- 100 milliseconds100 ms × 0.001 = 0.1 s
Milliseconds to seconds conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Milliseconds (ms) | Seconds (s) |
|---|---|
| 0.1 ms | 0.0001 s |
| 0.25 ms | 0.00025 s |
| 0.5 ms | 0.0005 s |
| 1 ms | 0.001 s |
| 2 ms | 0.002 s |
| 3 ms | 0.003 s |
| 4 ms | 0.004 s |
| 5 ms | 0.005 s |
| 6 ms | 0.006 s |
| 7 ms | 0.007 s |
| 8 ms | 0.008 s |
| 9 ms | 0.009 s |
| 10 ms | 0.01 s |
| Milliseconds (ms) | Seconds (s) |
|---|---|
| 12 ms | 0.012 s |
| 15 ms | 0.015 s |
| 20 ms | 0.02 s |
| 25 ms | 0.025 s |
| 30 ms | 0.03 s |
| 40 ms | 0.04 s |
| 50 ms | 0.05 s |
| 75 ms | 0.075 s |
| 100 ms | 0.1 s |
| 250 ms | 0.25 s |
| 500 ms | 0.5 s |
| 1,000 ms | 1 s |
About the units
Millisecond (ms)
One thousandth of a second. Network latency and reaction times are measured in milliseconds. One millisecond equals 0.001 seconds (s).
Second (s)
The SI base unit of time, defined by 9,192,631,770 periods of caesium-133 radiation.
Frequently asked questions
How many seconds are in one millisecond?
There are 0.001 seconds in one millisecond, and this value is exact by definition.
How do I convert milliseconds to seconds?
Multiply the number of milliseconds by 0.001. For example, 10 ms × 0.001 = 0.01 s.
How many milliseconds are in one second?
One second equals 1,000 milliseconds. That is the reverse factor, 1 ÷ 0.001.
What is 10 milliseconds in seconds?
10 ms = 0.01 s.
Is this ms to s converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.