How tall do you have to be to sit ina regular seat?

There isn't a specific height requirement to sit in a regular seat, as seats are designed to accommodate a wide range of body types. However, a seat typically has a height of around 18 inches from the floor to the seat cushion, which is comfortable for most adults. If a person is significantly shorter or taller than average, they may need to adjust their seating position with cushions or by choosing seats with adjustable features for comfort.