Ergonomic Chair Size Selector (Height & Weight)
Find the right seat dimensions for your height and weight: seat height and depth, width, lumbar support, weight capacity and Aeron size.
Ergonomic chair size selector
A badly sized ergonomic chair tires you as much as a cheap one. The right seat height, depth and a width suited to your build matter as much as the number of adjustments. Enter your height and weight: the tool works out your reference figures and points you to the reviewed models that fit.
Chair-size selector
Your height and weight set the right seat dimensions. Enter them to get your reference figures and the reviewed models that fit you.
Feet flat, knees at 90°. Check the gas lift covers this height.
2-3 fingers between the seat edge and the back of the knee.
A wider seat spreads pressure more evenly.
The lumbar support should sit in the small of your back.
Safety margin: aim for a capacity ≥ 1.2 × your weight.
A / B / C
Reviewed models that fit you
Figures based on standard anthropometric ratios (seat ≈ height × 0.26; depth ≈ height × 0.25) and manufacturer size guides (Herman Miller Aeron A/B/C). These are starting points; try the chair when you can.
To choose in detail, read our guide on how to choose an ergonomic chair, or compare the best ergonomic chairs and the best models under €300.