A quick, practical way to estimate the right raised toilet seat height. No jargon. No confusion. Just a simple tool that helps you match the seat height to the person using it — comfortably and safely.
The goal is simple: when seated, the person’s hips and knees should be level.
Enter knee height (from floor to top of knee while standing):
Knee height is a simple, reliable way to estimate how much height someone needs added to a standard toilet. Most standard toilets sit around 14–16 inches tall.
By matching toilet height to knee height, the seated position feels natural and balanced — especially helpful for older adults, post-surgery recovery, and anyone with limited mobility.
Once you know your height, match your toilet bowl:
If you want to browse reliable raised toilet seats with different height options, this page shows a full list:
No. Too much height can feel unstable. Aim for level hips and knees.
Most households choose a moderate height (2"–3") or a removable clamp-on model.
Yes. Older homes often have lower bowls. “Comfort height” toilets already sit higher — this calculator still applies.
Height is separate from stability. If arms help, choose a model with handles or a frame.