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Milliseconds to Seconds Converter

Convert milliseconds (ms) to seconds (s), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter a length of time, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
0.001 s
centuries
3.16887385068 × 10⁻¹³ c.
decades
3.16887385068 × 10⁻¹² dec
years (average Gregorian)
3.16887385068 × 10⁻¹¹ yr
months (average)
3.80264862082 × 10⁻¹⁰ mo
weeks
1.65343915344 × 10⁻⁹ wk
days
1.15740740741 × 10⁻⁸ d
hours
2.77777777778 × 10⁻⁷ h
minutes
1.66666666667 × 10⁻⁵ min
microseconds
1,000 µs
nanoseconds
1,000,000 ns

1 ms = 0.001 s

Show the working
  1. 1 ms = 0.001 s
  2. 1 × 0.001 = 0.001 s

How to convert milliseconds to seconds

1 ms = 0.001 s, so multiply by 0.001 to go from milliseconds to seconds. Going the other way, 1 s = 1,000 ms.

s = ms × 0.001
ms = s × 1,000

Worked example:

1 ms = 0.001 s
5 × 0.001 = 0.005 s

Milliseconds to seconds table

MillisecondsSeconds
1 ms0.001 s
2 ms0.002 s
3 ms0.003 s
4 ms0.004 s
5 ms0.005 s
6 ms0.006 s
7 ms0.007 s
8 ms0.008 s
9 ms0.009 s
10 ms0.01 s
15 ms0.015 s
20 ms0.02 s
25 ms0.025 s
30 ms0.03 s
40 ms0.04 s
50 ms0.05 s
75 ms0.075 s
100 ms0.1 s
250 ms0.25 s
500 ms0.5 s
1000 ms1 s

About the units

Formula version 0.1.0Reviewed