Seconds to Milliseconds Conversion
Enter the time in seconds below to get the value converted to milliseconds.
How to Convert Seconds to Milliseconds

To convert a second measurement to a millisecond measurement, multiply the time by the conversion ratio. One second is equal to 1,000 milliseconds, so use this simple formula to convert:
The time in milliseconds is equal to the seconds multiplied by 1,000.
Seconds and milliseconds are both units used to measure time. Keep reading to learn more about each unit of measure.
Seconds
The second has historically been defined as 1/60 of a minute or 1/86,400 of a day. According the to SI definition, the second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the unperturbed ground state of the caesium 133 atom.[1]
The second is the SI base unit for time in the metric system. Seconds can be abbreviated as sec; for example, 1 second can be written as 1 sec.
Milliseconds
The millisecond is a multiple of the second, which is the SI base unit for time. In the metric system, "milli" is the prefix for 10-3. Milliseconds can be abbreviated as ms; for example, 1 millisecond can be written as 1 ms.
Second to Millisecond Conversion Table
Seconds | Milliseconds |
---|---|
0.001 sec | 1 ms |
0.002 sec | 2 ms |
0.003 sec | 3 ms |
0.004 sec | 4 ms |
0.005 sec | 5 ms |
0.006 sec | 6 ms |
0.007 sec | 7 ms |
0.008 sec | 8 ms |
0.009 sec | 9 ms |
0.01 sec | 10 ms |
0.02 sec | 20 ms |
0.03 sec | 30 ms |
0.04 sec | 40 ms |
0.05 sec | 50 ms |
0.06 sec | 60 ms |
0.07 sec | 70 ms |
0.08 sec | 80 ms |
0.09 sec | 90 ms |
0.1 sec | 100 ms |
0.2 sec | 200 ms |
0.3 sec | 300 ms |
0.4 sec | 400 ms |
0.5 sec | 500 ms |
0.6 sec | 600 ms |
0.7 sec | 700 ms |
0.8 sec | 800 ms |
0.9 sec | 900 ms |
1 sec | 1,000 ms |
References
- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9.pdf