A fuel quantity distributor for use in conjunction with multicylinder combustion engines, in which two concentric, radially adjacent metering elements have metering inlet channels. The metering elements are rotatable relative to one another, and the edges of the metering inlet channels intersect each other and open a variable cross-section. The ratio of wetted perimeter to the diameter of the inscribed circle from the idling position to at least the partial load position, is substantially constant when one-third of the maximum cross-section is opened. The ratio does not exceed 6.0 and is measured in the plane of the cross-section.