A time-to-digital converter having at least one chain of delay elements, wherein a status of the chain of delay elements represents a digital signal relating to a time interval to be converted, wherein the time-to-digital converter having an injector for injecting a calibration pulse of known position and/or known duration in time into the chain of delay elements, wherein a first status of the chain of delay elements being expected in response to the calibration pulse, the time-to-digital converter further having a capturer for capturing the actual status of the chain of delay elements in response to the calibration pulse, a calculator for calculating a deviation between the expected first status and the actual status, and a combination unit for taking into account the deviation when converting the time interval to the digital signal.