<Tr> <Th> ingredient </Th> <Th> density g / ml </Th> <Th_colspan="2"> metric cup </Th> <Th_colspan="2"> imperial cup </Th> <Th_colspan="2"> U.S. customary cup </Th> </Tr> <Tr> <Th> g </Th> <Th> oz </Th> <Th> g </Th> <Th> oz </Th> <Th> g </Th> <Th> oz </Th> </Tr> <Tr> <Td> water </Td> <Td> </Td> <Td> 249--250 </Td> <Td> 8.8 </Td> <Td> 283--284 </Td> <Td> 10 </Td> <Td> 236.5882 </Td> <Td> 8.3 </Td> </Tr> <Tr> <Td> granulated sugar </Td> <Td> 0.8 </Td> <Td> 200 </Td> <Td> 7.0 </Td> <Td> 230 </Td> <Td> 8.0 </Td> <Td> 190 </Td> <Td> 6.7 </Td> </Tr>

What is a cup of water in ml