Convert seconds to milliseconds
1 s = 1000 ms — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1000ms
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1 s = 1000 ms
Show this value in all 22 time units
- Kiloseconds ks 0.001
- Seconds s 1
- Milliseconds ms 1000
- Microseconds µs 1 000 000
- Nanoseconds ns 1 000 000 000
- Picoseconds ps 1 000 000 000 000
- Femtoseconds fs 1 000 000 000 000 000
- Attoseconds as 1e+18
- Minutes min 0.016 666 666 666 7
- Hours h 0.000 277 777 777 778
- Days d 0.000 011 574 074 074 1
- Weeks wk 0.000 001 653 439 153 44
- Fortnights fn 0.000 000 826 719 576 72
- Month (average)s mo 0.000 000 380 264 862 082
- Year (Gregorian)s yr 3.16887385068e-8
- Year (Julian)s a 3.1688087814e-8
- Year (tropical)s a (trop) 3.16887654027e-8
- Decades dec 3.16887385068e-9
- Centuries c 3.16887385068e-10
- Millennia ka 3.16887385068e-11
- Shakes shake 100 000 000
- Planck times tₚ 1.85485843999e+43
Every row is Second (s) converted through the second, in exact rational arithmetic.
How to convert seconds to milliseconds
Multiply the number of seconds by 1000 to get milliseconds.
The exact factor is 1000 .
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 |
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 |
Frequently asked
How many milliseconds are in a second?
One second equals 1000 milliseconds (s → ms). That figure is exact, not rounded.
How do you convert seconds to milliseconds?
Multiply the number of seconds by 1000 to get milliseconds.
What is 1 ms in seconds?
One millisecond is 0.001 seconds.
What is 10 s in ms?
10 s = 10 000 ms.