The present invention relates to a device (1) for calibrating a pipette or a dispensing system comprising a plate (2), said plate (2) comprising at least one channel (3) with a loading port (4) for receiving a test volume of a fluid at one end of the at least one channel and an opening (5) at the other end of the at least one channel, wherein the at least one channel (3) is constructed as a capillary. Furthermore, the invention relates to a method for calibrating a pipette or a dispensing system, comprising the steps of introducing a first volume of a fluid into a loading port (4) of a device (1), recording a first length of the fluid column in a channel (3) of the device (1), introducing a second volume of a fluid from the pipette or the dispensing system to be calibrated to the same loading port (4), recording a second length of the fluid column in the channel (3), and computing the volume dispensed by the pipette or the dispensing system by calculating the distance between the second length and the first length and multiplying said distance with the cross-section of the channel (3).