Measure the length of the child's leg from the knees down...this length will seat the child in comfort with the feet barely brushing the floor. However, if the child grows.....You'll have to start again. Now, if you meant a chair to sit at the dining-room table etc... You'll just have to wing it like the rest of us.
The height of a chair is 10 feet.
id say about waist height =)
Industry standard height for a chair is 18 to 20 inches. The height depends on the use and function of the chair.
The average height of a chair is between 16 to 18 inches for adults. This is found to be the most comfortable height for a seat.
Ergonomically, the optimum height for kitchen counters is 3 feet, or 36 inches. This can vary however, as people of different heights would require different height counters.
Launch height is term used in aviation as optimum height for a release of missiles or bombs.
I am that height so what I do is just buy the items, and adjust the chair to fit my height.
The optimum height for a curtain rod is 2 to 3 inches above the frame.
metre high
6 feet
72 inches from tub floor.
Above ground!