Abstract: A method for determining a required paint quantity and use of the method to operate paint-spraying robots are disclosed. In an exemplary method for determining a required paint quantity for the paint-spraying operation of a paint-spraying robot, in an integration operation, from the motional sequence of the paint-spraying robot and the paint-spraying parameters, an integration value for the paint quantity is determined. A correction factor is determined, from the integration value and the correction factor. A start value is formed. The start value is fed to an adaptive system. The method has the advantage that the learning phase for an adaptive system can be shortened and paint losses diminished.