One, the height of the desk is 75 good or 80 good
Generally, a desk height of 75cm is considered comfortable, as the typical seat heights available on the market are around 45cm. Combining a 75cm desk with standard seat heights provides the most comfortable user experience.
However, if the table you purchased has a high height, such as for gaming chairs or ergonomic chairs, it is best suited for use with a 80cm desk.
If you are unsure which height desk is best for your needs, consider an adjustable height desk. The height can be adjusted to suit your specific requirements, and it can also help prevent discomfort associated with prolonged sitting.

Two. Formula for determining desk height based on height
Assuming you have a normal body proportion, you can directly choose the appropriate desk and chair heights using the following formulas: Chair height = Height * 27% + 2; Desk height = Height * 43% + 2.
III. Children's Desk and Chair Size Comparison Table
Height (cm) | Desktop height (cm) | Seat height (cm) |
180.0 | 76 | 44 |
165-179 | 73 | 42 |
158-172 | 70 | 40 |
150-164 | 67 | 38 |
143-157 | 64 | 36 |
135-149 | 61 | 34 |
128-142 | 58 | 32 |
120-134 | 55 | 30 |
119 or less | 52 | 29 |