<P> Sainsbury's operates stores under two formats: supermarkets and Sainsbury's Local convenience stores . It also operates Sainsbury's Online internet shopping services; and has a property portfolio worth £ 8.6 billion (as of March 2007). It is the second largest supermarket chain in the UK (since 2014), and says it places an emphasis on a higher quality grocery offering compared to its other large rivals . </P> <P> In June 2015 Sainsbury's store portfolio was as follows . </P> <Table> <Tr> <Th> Format </Th> <Th> Number </Th> <Th> Total Space (sq ft) </Th> </Tr> <Tr> <Td> Supermarkets </Td> <Td> 598 </Td> <Td> 21,190,000 (AGM 2014) </Td> </Tr> <Tr> <Td> Convenience stores </Td> <Td> 714 </Td> <Td> 1,629,000 </Td> </Tr> <Tr> <Td> Total </Td> <Td> 1312 </Td> <Td> 22,819,000 (AGM 2014) </Td> </Tr> </Table> <Tr> <Th> Format </Th> <Th> Number </Th> <Th> Total Space (sq ft) </Th> </Tr>

How many sainsbury's supermarkets are there in the uk