Seconds to Milliseconds
1 second = 1,000 milliseconds. To convert seconds (s) to milliseconds (ms), multiply by 1,000.
Converter
How to convert seconds to milliseconds
ms = s × 1,000 Example: convert 8 seconds to milliseconds.
8 s × 1,000 = 8,000 ms
The same relationship in reverse: 1 millisecond = 0.001 seconds, so you can also divide by 0.001. Need the other direction? Use the milliseconds to seconds converter.
You will typically need this conversion for programming timeouts, animations and reaction tests.
Seconds to Milliseconds conversion chart
| Seconds (s) | Milliseconds (ms) |
|---|---|
| 1 s | 1,000 ms |
| 2 s | 2,000 ms |
| 3 s | 3,000 ms |
| 4 s | 4,000 ms |
| 5 s | 5,000 ms |
| 6 s | 6,000 ms |
| 7 s | 7,000 ms |
| 8 s | 8,000 ms |
| 9 s | 9,000 ms |
| 10 s | 10,000 ms |
| 15 s | 15,000 ms |
| 20 s | 20,000 ms |
| 25 s | 25,000 ms |
| 30 s | 30,000 ms |
| 40 s | 40,000 ms |
| 50 s | 50,000 ms |
| 75 s | 75,000 ms |
| 100 s | 100,000 ms |
| 250 s | 250,000 ms |
| 500 s | 500,000 ms |
| 1,000 s | 1,000,000 ms |
Values rounded to 8 significant figures. The converter above shows up to 12.
About the units
Second (s)
The SI base unit of time, defined by 9,192,631,770 oscillations of the caesium-133 atom.
Millisecond (ms)
One thousandth of a second. Used for reaction times, network latency and audio timing.
Frequently asked questions
How many milliseconds are in a second?
1 second = 1,000 milliseconds. Going the other way, 1 millisecond = 0.001 seconds.
How do I convert seconds to milliseconds?
To convert seconds to milliseconds, multiply by 1,000. The formula is ms = s × 1,000.
What is 8 s in ms?
8 seconds is 8,000 milliseconds (8 s × 1,000 = 8,000 ms).