How much does it cost to join planet fitness?

So the problem here is your credit card membership is open ended ,meaning you have to cancel your membership through your card company . You cant just pay for 3months and forget about it .If you forget to cancel you will keep getting charged

Without getting too far into it, membership rates are as follows: (Offer good through February 28th, 2018 - then subject to change) Regular Membership - $29 startup fee (plus prorate) paid in club, $10 per month EFT (Electronic Funds Transfer) from bank account, $39 per year (maintenance fee) EFT from bank account. Black Card Membership - $0 startup fee (plus prorate) paid in club, $21.99 per month EFT from bank account, $39 per year (maintenance fee) EFT from bank account. The prorate that accompanies the startup fee covers membership between the day a member signs up and the first monthly billing date (17th of each month), and will therefore fluctuate up or down depending on the day of the month a member joins.