How much does it cost to put Freon in your car's air conditioning system?

it depends on where u go to get it done and how long the mechanic shop says it takes most small town shops charge 70 bucks an hour for labor, but the Freon is actually cheap and easy to do yourself. there is a valve that looks like a tire core under the hood and u just connect the can to this and let it fill. so your price actually depends on how cheap u can find the Freon for.