All tools / Unit Converter40 kb to bytes40 kb = 40,960 bytesFormula1 kb = 1,024 bytes, so 40 × 1,024 = 40,960Need another value? Use the full Unit ConverterOther kb → bytes conversions1 kb → bytes2 kb → bytes3 kb → bytes4 kb → bytes5 kb → bytes6 kb → bytesRelated conversions1 mb → gb1 gb → mb1 kb → mb1 gb → tb1 mb → kb1 gb → kb