Convert milliseconds to seconds
1 millisecond equals 0.001 seconds. Enter a value below to convert instantly.
Need the other direction? Convert second to millisecond →
Formula
Multiply the number of milliseconds by 0.001 to get seconds.
Step by step
- Start with 1 ms.
- Multiply by the conversion factor 0.001.
- 1 × 0.001 = 0.001 s.
Milliseconds to Seconds conversion table
| Milliseconds (ms) | Seconds (s) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 30 | 0.03 |
| 60 | 0.06 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1,000 | 1 |
Convert Millisecond to other time units
1 ms expressed in every other time unit on this site.
- Second s 0.001
- Millisecond ms 1
- Microsecond µs 1,000
- Nanosecond ns 1,000,000
- Picosecond ps 1,000,000,000
- Femtosecond fs 1,000,000,000,000
- Attosecond as 1e+15
- Shake shake 100,000
- Planck Time tP 1.8548584e+40
- Minute min 0.000016666667
- Hour h 2.7777778e-7
- Day d 1.1574074e-8
- Week wk 1.6534392e-9
- Fortnight fortnight 8.2671958e-10
- Month mo 3.8026486e-10
- Quarter qtr 1.2675495e-10
- Year yr 3.1688739e-11
- Decade decade 3.1688739e-12
- Century century 3.1688739e-13
- Millennium millennium 3.1688739e-14
- Day (sidereal) d (sid) 1.1605763e-8
- Hour (sidereal) h (sid) 2.7853831e-7
- Minute (sidereal) min (sid) 0.000016712299
- Second (sidereal) s (sid) 0.0010027379
- Week (Julian) wk (Jul) 1.6534392e-9
- Month (synodic) mo (syn) 3.9193494e-10
- Year (Julian) yr (Jul) 3.1688088e-11
- Year (leap) yr (leap) 3.1623153e-11
- Year (tropical) yr (trop) 3.1688761e-11
- Year (sidereal) yr (sid) 3.1687536e-11
- Year (common) yr (365d) 3.1709792e-11
- Quinquennial 5 yr 6.3419584e-12
- Septennial 7 yr 4.5299703e-12
- Octennial 8 yr 3.963724e-12
- Novennial 9 yr 3.5233102e-12
- Quindecennial 15 yr 2.1139861e-12
About the millisecond
The millisecond (ms) is a SI unit of time.
About the second
The second (s) is a SI unit of time. The SI base unit of time, defined by the caesium-133 hyperfine transition.
Where this conversion is used
Converting milliseconds to seconds comes up when scheduling, timers, project planning, and physics. Month and year use average calendar lengths, so they are approximate for any specific date range.
Related conversions
Frequently asked questions
How many seconds are in a millisecond?
One millisecond equals 0.001 seconds.
How do you convert milliseconds to seconds?
Multiply the number of milliseconds by 0.001 to get seconds.
What is 1 second in milliseconds?
One second equals 1,000 milliseconds.
When would I convert milliseconds to seconds?
This conversion is common when scheduling, timers, project planning, and physics.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.