how to convert years to seconds?

To convert years to seconds, you can use the following conversion factors:

1 year = 365 days
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds

So, to convert years to seconds, you can multiply the number of years by the conversion factors above:

Number of years * 365 days * 24 hours * 60 minutes * 60 seconds

For example, if you want to convert 5 years to seconds:

5 years * 365 days * 24 hours * 60 minutes * 60 seconds = 157,680,000 seconds