A device for metering and measuring quantities of liquid, in particular in a pump for liquid fuels, having a plurality of volume meters, an assigned valve being arranged upstream of each volume meter, and having a liquid supply which branches into individual supply lines opening out into the valves, wherein the valves (5) and the volume meters are assigned to a housing (1, 2, 3) configured in the form of a block, which housing has an inlet opening (4) and supply ducts (6), which branch off from the inlet opening (4) to the valves (5) and form the individual supply lines, a first housing block (1) forming the inlet opening (4) and valve connection openings (8) covered by a respective valve head (7), in which valve connection openings (8) a respective supply duct (6) opens out and from which proceeds a respective connecting duct (10) to the assigned volume meter, which connecting duct can be closed off by a piston (9), a disk, a diaphragm or the like of a valve (5), the volume meters being assigned in each case separately to a second housing block (2, 3) and each second housing block (2, 3) forming the rotor housing for two mutually engaging screw spindles (11, 12) of a screw-spindle meter, which spindles allow axial through-flow, and those ends (2′, 3′) of the second housing blocks which are assigned to the axial bearings (13, 14) of the screw spindles covering outlet openings (15) in the connecting ducts.