How much to apply for a passport?

The price varies for adults, and children. Also, if you are renewing it is different. Google search the price for passport application. You will be able to get the most recent up to date information provided to you. I will not put the price on here since it can change. Best website I can direct you to. Us he passport fee calculator. https://travel.state.gov/content/travel/en/passports/how-apply/fees.html

For current passport prices, please Google US Passport at the .Gov website. I think they recently had a price increase.