Do you think I will need more spray dye for my hair?

I have a 3.85 oz can of black hair spray, and I need to know how much hair that should cover.

Do you think I will need more spray dye for my hair?

3 cans definatly

Do you think I will need more spray dye for my hair?

i think you will need anouther can

but i would use a wash in wash out colour coz the spray makes your hair so dry and you can brush it once you have sprayed it coz you will rip your hair out