How do I convert 1min and 15 seconds to all seconds
 

I have a time of 1:15 that is 1 minute and 15 seconds not one fifteen. I
need to have it read in all seconds so it needs to say 75 seconds.

How do I convert 1min and 15 seconds to all seconds
 

=A2*24*3600 and format as General or Number.
Otherwise you could just leave the existing cell, or use =A2, and format as
[s]
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David Biddulph

bwpate wrote:
I have a time of 1:15 that is 1 minute and 15 seconds not one
fifteen. I need to have it read in all seconds so it needs to say 75
seconds.