Does it require more gas to use A/C in car?

-Does it require more gas to use the A/C in the car than to not have the A/C on?yes it requires more gas to run the ac than not--your car uses a belt that goes around pulley on ac compressor-this turns and compresses gas-etc to make cold air--this requires more power from the engine-ergo more fuel for more power--in as far as using not using at speed-if yhou research Mythbusters they did the survey and you use less fuel at speed with ac on over no ac and windows down
No, that's controlled by your car battery