To be absolutely certain of this, you have to turn off the main switch on your electricity meter. If you no longer have any electricity in your home, then that is indeed your meter. Another possibility is to switch off everything in the fuse box in your home. If the dial on the electricity meter stops rotating, then you have found your electricity meter.
Gas meters have a little lever. If you turn this lever crosswise to the pipe, you can stop gas going through the meter. Do this and then check whether your still have gas for cooking or whether your gas boiler has stopped working. That way you can find your gas meter.
