How much bank balance is required for US visa?

How much bank balance is required for US visa? The amount of bank balance you should have for applying to the US tourist visa depends on the duration. If it is a 15-day trip, you must have $ 5,000-10,000 in your bank. Is travel insurance compulsory for the US travel visa?

The amount of bank balance you should have for applying to the US tourist visa depends on the duration. If it is a 15-day trip, you must have $ 5,000-10,000 in your bank. Is travel insurance compulsory for the US travel visa?