Is 100 bits 1 dollar?

Could you please clarify for me the relationship between 100 bits and 1 dollar? I understand that bits are often used as a unit of measurement within the cryptocurrency world, but I'm unsure if they always have a fixed value equivalent to a dollar. Is it accurate to say that 100 bits are always worth 1 dollar, or does this value vary depending on the specific cryptocurrency and the current market conditions? Thank you for helping me understand.