A capacitance-to-digital converter and an associated method and computer program product are provided that have an extended measurement range. A capacitance-to-digital converter includes first and second capacitors with the second capacitor being configured to measure a change in a value. The capacitance-to-digital converter also includes first and second switches switchably connecting the first and second capacitors, respectively, to a reference voltage while the first and second switches are in a first position such that charge is stored by the first and second capacitors in response to the reference voltage. The capacitance-to-digital converter further includes a saturation detector configured to detect the charge stored by the second capacitor equaling or exceeding the charge stored by the first capacitor and, in response, causing the first and second switches to switch to a second position while continuing to measure the change in the value with the charge stored by the second capacitor.