Convert Days to Seconds
One day equals 86,400 seconds. Type any value to convert days to seconds instantly — with a full reference table below.
Convert Days to Seconds
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Conversion formula
To convert days to seconds, multiply by 86,400. One day equals 86,400 s, and one second equals 0.000012 d.
Days to Seconds table
About converting Days to Seconds
Days (d) and Seconds (s) are both units of time. The exact factor is 1 d = 86,400 s, so multiply by 86,400 to go from days to seconds (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Seconds to Days converter, or the full unit converter for every unit at once.
Frequently asked questions
How many seconds are in one day?
One day equals 86,400 seconds.
How do I convert days to seconds?
Multiply the number of days by 86,400. For example, 10 days = 864,000 seconds.
What is 5 days in seconds?
5 days is 432,000 seconds.