All tools / Unit Converter100 gb to mb100 gb = 102,400 mbFormula1 gb = 1,024 mb, so 100 × 1,024 = 102,400Need another value? Use the full Unit ConverterOther gb → mb conversions1 gb → mb2 gb → mb3 gb → mb5 gb → mb10 gb → mb15 gb → mbReverse conversion100 mb → gbRelated conversions1 mb → gb1 kb → mb1 gb → tb1 mb → kb