Since a bidet toilet seat provides so many functions, many people believe that the housing used to operate these functions increases the height of the toilet seat. However, the height of the bidet toilet seat is only about half an inch to an inch thicker than a normal toilet seat.

This confusion is compounded by height measurements given on websites and in bidet toilet seat manuals. The important thing to realize about these measurements is that they refer to the highest point of the bidet toilet seat. Most of the circuit board, wiring, and hardware for an electric bidet toilet is located behind the seat. This allows the rear of the seat to be much higher than the rest of the seat, while keeping the main part of the bidet seat similar to the height the operator is used to.

Why is this height measurement important in the first place? Some toilets have limited space near the back of the toilet. This can make it difficult to use a particular bidet toilet seat on a particular toilet. Therefore, it is important to know the height of the highest point.