There is provided an image capturing apparatus including a pixel circuit that generates a pixel signal based on an electric charge generated by photoelectric conversion and a logic circuit that outputs a signal based on the pixel signal. The image capturing apparatus includes a first contact plug connected to a source or a drain of a first transistor constituting the pixel circuit and a second contact plug connected to a source or a drain of a second transistor constituting the logic circuit. A diameter of the first contact plug is smaller than a diameter of the second contact plug.