Convert Days to Seconds

Enter your day value in the form below to get the value calculated in seconds.

Results in Seconds:

1 day = 86,400 sec

How to Convert Days to Seconds Using an Easy Conversion Formula

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Convert days to seconds with this simple formula:

seconds = days × 86,400

Converting a day time measurement to a second measurement involves multiplying your time by the conversion ratio to find the result. A day is equal to 86,400 seconds, so to convert simply multiply by 86,400.

For example:

5 day = (5 × 86,400) = 432,000 sec

Days and seconds are both units used to measure time. Learn more about time and find more time measurement conversion calculators. A day is a time measurement and can be abbreviated as day, for example 1 day. A second is a time measurement and can be abbreviated as sec, for example 1 sec.

days and seconds are units used to measure time

Convert Seconds to Days

Day Measurements and Equivalent Second Conversions

Common day values converted to the equivalent second value
Days	Seconds
1 day	86,400 sec
2 day	172,800 sec
3 day	259,200 sec
4 day	345,600 sec
5 day	432,000 sec
6 day	518,400 sec
7 day	604,800 sec
8 day	691,200 sec
9 day	777,600 sec
10 day	864,000 sec
11 day	950,400 sec
12 day	1,036,800 sec
13 day	1,123,200 sec
14 day	1,209,600 sec
15 day	1,296,000 sec
16 day	1,382,400 sec
17 day	1,468,800 sec
18 day	1,555,200 sec
19 day	1,641,600 sec
20 day	1,728,000 sec
21 day	1,814,400 sec
22 day	1,900,800 sec
23 day	1,987,200 sec
24 day	2,073,600 sec
25 day	2,160,000 sec
26 day	2,246,400 sec
27 day	2,332,800 sec
28 day	2,419,200 sec
29 day	2,505,600 sec
30 day	2,592,000 sec
31 day	2,678,400 sec
32 day	2,764,800 sec
33 day	2,851,200 sec
34 day	2,937,600 sec
35 day	3,024,000 sec
36 day	3,110,400 sec
37 day	3,196,800 sec
38 day	3,283,200 sec
39 day	3,369,600 sec
40 day	3,456,000 sec