Days to Microseconds Conversion

Enter the time in days below to get the value converted to microseconds.

Results in Microseconds:
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1 day = 86,400,000,000 µs

How to Convert Days to Microseconds

To convert a day measurement to a microsecond measurement, multiply the time by the conversion ratio.

Since one day is equal to 86,400,000,000 microseconds, you can use this simple formula to convert:

microseconds = days × 86,400,000,000

The time in microseconds is equal to the days multiplied by 86,400,000,000.

For example, here's how to convert 5 days to microseconds using the formula above.
5 day = (5 × 86,400,000,000) = 432,000,000,000 µs

How Many Microseconds Are in a Day?

There are 86,400,000,000 microseconds in a day, which is why we use this value in the formula above.

1 day = 86,400,000,000 µs

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


One day is the time it takes for the Earth to complete a single rotation around its axis in relation to the Sun. There are 24 hours in a day.

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


The microsecond is a multiple of the second, which is the SI base unit for time. In the metric system, "micro" is the prefix for 10-6. Microseconds can be abbreviated as µs; for example, 1 microsecond can be written as 1 µs.

Day to Microsecond Conversion Table

Day measurements converted to microseconds
Days Microseconds
0.0000000001 day 8.64 µs
0.0000000002 day 17.28 µs
0.0000000003 day 25.92 µs
0.0000000004 day 34.56 µs
0.0000000005 day 43.2 µs
0.0000000006 day 51.84 µs
0.0000000007 day 60.48 µs
0.0000000008 day 69.12 µs
0.0000000009 day 77.76 µs
0.00000000001 day 0.864 µs
0.0000000001 day 8.64 µs
0.000000001 day 86.4 µs
0.00000001 day 864 µs
0.0000001 day 8,640 µs
0.000001 day 86,400 µs
0.00001 day 864,000 µs
0.0001 day 8,640,000 µs
0.001 day 86,400,000 µs
0.01 day 864,000,000 µs
0.1 day 8,640,000,000 µs
1 day 86,400,000,000 µs

More Day & Microsecond Conversions