A pedal apparatus comprises a pedal housing including an inner space, a pedal pad configured to rotate relative to the pedal housing, a pedal arm connected to the pedal pad, a magnet installed in the pedal arm, and a sensing board. The pedal arm includes a hollow and is configured to rotate based on a rotation of the pedal pad. The sensing board has at least a portion inserted into the hollow and includes a hole sensor configured to sense a magnetic force generated by the magnet.