All tools / Unit Converter20 tb to gb20 tb = 20,480 gbFormula1 tb = 1,024 gb, so 20 × 1,024 = 20,480Need another value? Use the full Unit ConverterOther tb → gb conversions1 tb → gb2 tb → gb3 tb → gb4 tb → gb5 tb → gb6 tb → gbReverse conversion20 gb → tbRelated conversions1 mb → gb1 gb → mb1 kb → mb1 gb → tb1 mb → kb1 gb → kb