Once H1B expires... will my B1/B2 still be valid?

[willcast]

Currently, I have a B1/B2 visa valid for 10 years.

If my H1B expires in, say, 6 years... will I be able to stay in US with my B1/B2 for a least a couple of additional months?

Or I will need to exit the US and then enter again?

Or my H1B will void my B1/B2 visa?

[kabkaba]

You are only allowed to stay in the US as long as your I-94. Having valid or expired Visas does not determine period of allowed stay.
For staying past your I-94 date, you must apply for change of status to Visitor or leave and return with Visitor visa.

[willcast]

Thank you.

Very clear.