Convert milliseconds to seconds
1 ms = 0.001 s — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001s
As a fraction: 1/1000
1 ms = 0.001 s
How to convert milliseconds to seconds
Multiply the number of milliseconds by 0.001 to get seconds.
The exact factor is 0.001 — as a fraction, 1/1000.
Millisecond to Second conversion table
| Milliseconds (ms) | Seconds (s) |
|---|---|
| 1 ms | 0.001 |
| 2 ms | 0.002 |
| 3 ms | 0.003 |
| 5 ms | 0.005 |
| 10 ms | 0.01 |
| 20 ms | 0.02 |
| 25 ms | 0.025 |
| 50 ms | 0.05 |
| 100 ms | 0.1 |
| 250 ms | 0.25 |
| 500 ms | 0.5 |
| 1000 ms | 1 |
Second to Millisecond conversion table
| Seconds (s) | Milliseconds (ms) |
|---|---|
| 1 s | 1000 |
| 2 s | 2000 |
| 3 s | 3000 |
| 5 s | 5000 |
| 10 s | 10 000 |
| 20 s | 20 000 |
| 25 s | 25 000 |
| 50 s | 50 000 |
| 100 s | 100 000 |
| 250 s | 250 000 |
| 500 s | 500 000 |
| 1000 s | 1 000 000 |
Frequently asked
How many seconds are in a millisecond?
One millisecond equals 0.001 seconds (ms → s). That figure is exact, not rounded.
How do you convert milliseconds to seconds?
Multiply the number of milliseconds by 0.001 to get seconds.
What is 1 s in milliseconds?
One second is 1000 milliseconds.
What is 10 ms in s?
10 ms = 0.01 s.