Seconds to milliseconds converter
Milliseconds (ms)
1 second = 1,000 milliseconds
How to convert seconds to milliseconds
ms = s × 1000
Multiply the number of seconds by 1000 to get milliseconds. Going the other way, divide by 1000 (or multiply by 0.001).
One second is exactly defined as 1000 milliseconds (to 12 significant figures), and one millisecond is 0.001 seconds.
Worked examples
- Convert 5 seconds: 5 × 1000 = 5,000 5,000 milliseconds.
- Convert 12.5 seconds: 12.5 × 1000 = 12,500 12,500 milliseconds.
- Convert 250 seconds: 250 × 1000 = 250,000 250,000 milliseconds.
Quick-reference table
| s | ms |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
| ms | s |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| 1,000 | 1 |
Related conversions
Frequently asked questions
How many milliseconds are in 1 second?
1 second equals 1,000 milliseconds.
What is the formula to convert seconds to milliseconds?
Use ms = s × 1000. Multiply the number of seconds by 1000 to get milliseconds. Going the other way, divide by 1000 (or multiply by 0.001).
What is 100 seconds in milliseconds?
100 seconds is 100,000 milliseconds.