Milliseconds to Hours Conversion

Enter the time in milliseconds below to get the value converted to hours.

Results in Hours:
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1 ms = 2.7778E-7 hr
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Milliseconds to Hours

To convert a millisecond measurement to an hour measurement, divide the time by the conversion ratio.

Since one hour is equal to 3,600,000 milliseconds, you can use this simple formula to convert:

hours = milliseconds ÷ 3,600,000

The time in hours is equal to the milliseconds divided by 3,600,000.

For example, here's how to convert 5,000,000 milliseconds to hours using the formula above.
5,000,000 ms = (5,000,000 ÷ 3,600,000) = 1.388889 hr

Milliseconds and hours are both units used to measure time. Keep reading to learn more about each unit of measure.


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.


The hour is a period of time equal to 1/24 of a day or 60 minutes.

The hour is an SI accepted unit for time for use with the metric system. Hours can be abbreviated as hr; for example, 1 hour can be written as 1 hr.

Millisecond to Hour Conversion Table

Millisecond measurements converted to hours
Milliseconds Hours
1 ms 0.00000027778 hr
2 ms 0.00000055556 hr
3 ms 0.00000083333 hr
4 ms 0.0000011111 hr
5 ms 0.0000013889 hr
6 ms 0.0000016667 hr
7 ms 0.0000019444 hr
8 ms 0.0000022222 hr
9 ms 0.0000025 hr
10 ms 0.0000027778 hr
100 ms 0.000027778 hr
1,000 ms 0.000278 hr
10,000 ms 0.002778 hr
100,000 ms 0.027778 hr
1,000,000 ms 0.277778 hr
10,000,000 ms 2.7778 hr

More Millisecond & Hour Conversions