How it's calculated
s = ms ÷ 1000
ms = milliseconds, s = seconds. 1 second = 1000 milliseconds.
Common values
| Milliseconds (ms) | Seconds (s) |
|---|---|
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
| 1500 | 1.5 |
Common questions
How many milliseconds are in a second?
Exactly 1,000 milliseconds make up one second.
Why do developers track milliseconds?
Web performance, animation timing, and network latency are all measured in milliseconds because the differences matter at that scale.