How fast can you gauge your ears?

Well that depends on your actual ear lobes. Small ear lobes = low stretch, Large ear lobes = bigger stretch. See you should only stretch loabes one gauge once every 30 days, this allows the tissue to expand safely without tearing the tissue. So it really depends on the sixe of your ear lobes, see a professional body piercer, they will discuss your plan and work out a safe schedule to get you up to the gauge you want.