My honda says it has 30% oil life left, how many mile can i drive before getting to 5%?

My honda says it has 30% oil life left, how many mile can i drive before getting to 5%?

It depends on driving conditions. It is not just based on mileage alone.
Country driving it'll be a lot more miles than city driving.
It will also go down faster if you have frequent start-ups
so there's no way anyone on here could give you a meaningful answer to this question.
Just keep an eye on it and when it gets to about 10% book an appointment to get it changed.

It's a simple calculation: If the maintenance call for 15,000 miles between oil change: %5 of 15K miles:

15,000: 5% = 750 miles.