Key takeaways
- Assuming a toilet marketed as comfort height will meet ADA numbers; check the listed seat height.
- Ignoring seat thickness; a heavy soft-close seat can add nearly an inch.
- Buying a tall model for a shared bathroom with young children and no step stool.
- Skipping a new wax ring when replacing an older unit.
The best comfort height toilet for most people is the TOTO Drake II in its universal height version, with the Kohler Highline Comfort Height and the American Standard Cadet 3 Right Height close behind. A comfort height toilet, also sold as chair height, right height or ADA height, has a bowl rim of roughly 16.5 to 17.5 inches, which puts the seat at 17 to 19 inches from the floor. That is about two inches taller than a traditional toilet and makes sitting and standing noticeably easier for adults, taller users and anyone with stiff knees or hips.
Quick Comparison of Comfort Height Toilets
| Pick | Best for | Flush volume | Style | Seat height class | Price range |
|---|---|---|---|---|---|
| TOTO Drake II Universal Height | Best overall | 1.28 GPF | Two-piece elongated | 17 to 19 inch ADA range | Mid to upper-mid |
| Kohler Highline Comfort Height | Best for remodels | 1.28 GPF | Two-piece, elongated or round | Comfort height | Mid-range |
| American Standard Cadet 3 Right Height | Best value | 1.28 or 1.6 GPF | Two-piece elongated | Right height | Budget to mid |
| Kohler Highline Tall | Best for mobility needs | 1.28 GPF | Two-piece elongated | About 2.5 inches above comfort height | Mid to upper-mid |
| Kohler Santa Rosa Comfort Height | Best compact one-piece | 1.28 GPF | One-piece compact elongated | Comfort height | Upper-mid |
| TOTO Ultramax II | Best one-piece | 1.28 GPF | One-piece elongated | Universal height | Upper-mid |
Best Overall: TOTO Drake II Universal Height
TOTO calls its chair-height line Universal Height, and the Drake II is the model most plumbers reach for. It combines a 1.28 GPF Tornado Flush with a glazed trapway and the CeFiONtect finish that resists staining. Published comparisons list a 1,000 gram MaP result for the Drake II, the highest score on that independent protocol. Because it is a two-piece design with ordinary internal parts, a flapper or fill valve replacement is simple and cheap. The downside is cleaning: the joint between tank and bowl collects dust, and the base is not skirted.
Best for Remodels: Kohler Highline Comfort Height
Kohler’s Highline line offers the widest menu of configurations, including elongated or round-front bowls, 10, 12 or 14 inch rough-in sizes and exposed or concealed trapways. That matters in older homes where the closet flange is not standard. The Comfort Height version is a straightforward swap for a traditional toilet. Reviewers note that most Kohler models list around 800 grams on the MaP scale, below the top score, so very heavy loads may need a second flush.
Best Value: American Standard Cadet 3 Right Height
The Cadet 3 is one of the best-known gravity toilets in North America, sold in 1.28 and 1.6 GPF versions with a wide flush valve and a fully glazed trapway. The Right Height elongated version meets the ADA seat-height range when paired with a standard seat. It is the one to buy when you want chair height without paying a premium. Expect a utilitarian look and a plastic-heavy tank fill assembly that you may want to replace after several years.
Best for Mobility Needs: Kohler Highline Tall
If standard comfort height still feels low, the Highline Tall places the seat about two and a half inches higher. This is the answer for people recovering from hip or knee surgery, very tall users, and caregivers who want extra stand-up assistance. The compromise is that shorter users may find their feet barely touching the floor, so it is a poor choice for a shared family bathroom. This is general information, not medical advice; an occupational therapist or doctor can recommend the right seat height for specific conditions.
Best Compact One-Piece: Kohler Santa Rosa Comfort Height
The Santa Rosa gives you comfort height and an elongated seat in a compact body under 28 inches from the wall, per Kohler’s sizing. It is a one-piece with a skirted look, available in 1.28 GPF and a 1.6 GPF version with Revolution 360 swirl flushing. It is heavy at over 80 pounds, so installation is a two-person job.
Best One-Piece: TOTO Ultramax II
The Ultramax II is TOTO’s one-piece workhorse. It keeps the Tornado Flush performance of the Drake II, adds a smoother skirted body, and eliminates the tank gasket. It costs more and is harder to repair, but buyers who value a quick wipe-down will appreciate it.
How to Choose a Comfort Height Toilet
Check the measurement that counts
Manufacturers measure the bowl rim, not the seat. Add about half an inch to one inch for a standard seat. ADA guidance calls for a seat between 17 and 19 inches above the floor, so a rim around 16.5 to 17 inches works with most seats.
Think about every user in the house
Comfort height suits most adults. Children, and adults under about 5 feet 2 inches, may need a footstool. If one household member is very tall and another is short, choose the standard comfort height and add a stool rather than going taller.
Match the bowl shape to the room
Elongated bowls are more comfortable but project 2 to 4 inches further than round-front ones. Allow at least 21 inches from the front of the bowl to the nearest wall or vanity, and 15 inches from the center line to each side wall.
Confirm the rough-in
Measure from the finished wall to the center of the closet bolts. Twelve inches is common; ten and fourteen inch rough-ins need a matching model.
Comfort Height Versus Standard Height
| Factor | Standard height | Comfort height |
|---|---|---|
| Rim height | About 14 to 15 inches | About 16.5 to 17.5 inches |
| Seat height | About 15 to 16 inches | 17 to 19 inches |
| Best for | Children, shorter adults | Most adults, taller users, limited mobility |
| ADA friendly | No | Yes, within 17 to 19 inches |
Mistakes to Avoid
- Assuming a toilet marketed as comfort height will meet ADA numbers; check the listed seat height.
- Ignoring seat thickness; a heavy soft-close seat can add nearly an inch.
- Buying a tall model for a shared bathroom with young children and no step stool.
- Skipping a new wax ring when replacing an older unit.
Which Comfort Height Toilet Should You Buy?
| Your situation | Best choice |
|---|---|
| Most households | TOTO Drake II Universal Height |
| Older home with non-standard rough-in | Kohler Highline Comfort Height |
| Tight budget | American Standard Cadet 3 Right Height |
| Hip or knee mobility concerns | Kohler Highline Tall |
| Small bathroom | Kohler Santa Rosa Comfort Height |
Measuring Seat Height Properly
Retail listings often quote the rim height, the seat height, or only a vague category, so measure to compare. Place a tape on the floor next to the toilet and measure to the top of the seat with the lid up, not to the rim. A traditional toilet lands around 15 to 16 inches, a comfort height around 17 to 19 inches, and a tall model around 19 to 21 inches. If you are replacing a toilet, also account for the floor: new tile or a floating floor can add up to three quarters of an inch.
Worked example
Suppose a person has a knee-to-floor measurement of 18 inches when seated with feet flat. Seat heights within roughly one inch of that figure let the hips and knees sit at similar levels, which reduces the effort of standing. A seat at 19 inches suits that person, while a 21 inch tall model is likely too high and leaves the feet hanging. Households with a wide range of heights can compromise at about 18 inches and add a small step stool for children.
Decision Matrix by User
| User | Height class | Recommended pick | Note |
|---|---|---|---|
| Average adult | Comfort height | TOTO Drake II Universal Height | Fits most users |
| Tall adult (over 6 feet) | Comfort or tall | Kohler Highline Comfort Height | Easier on knees |
| Limited mobility | Tall | Kohler Highline Tall | Add grab bars |
| Mixed household with kids | Comfort height plus stool | American Standard Cadet 3 Right Height | Stool helps children |
| Small bathroom | Comfort height, compact | Kohler Santa Rosa Comfort Height | Check projection |
For accessibility remodels, remember that toilet height is only one part of ADA guidance. Grab bar placement, clearance beside the toilet and door width also matter, and a local building inspector or accessibility consultant can confirm requirements.
Step-by-Step: Replacing a Toilet and What to Check
- Shut off the supply valve, flush, and sponge out the remaining water. Reason: a wet bowl is heavy and messy to lift.
- Disconnect the supply line and remove the closet bolt caps and nuts. Reason: stuck nuts are the most common cause of a cracked base, so cut them with a hacksaw blade if they will not turn.
- Lift the old toilet straight up and scrape off the old wax. Reason: leftover wax prevents a new seal from seating.
- Inspect the flange. It should sit on top of the finished floor, not below it, and the metal ring should be solid. A damaged flange needs a repair ring before the new toilet goes on.
- Set a new wax ring or a wax-free gasket, lower the toilet straight down onto the bolts, and press firmly. Reason: lifting it again to reposition breaks the seal.
- Tighten the nuts alternately, a little at a time, until the toilet is snug and does not rock. Reason: ceramic cracks under uneven pressure.
- Reconnect the supply line, open the valve, let the tank fill, and flush several times while looking for leaks at the base and the tank connection.
- Run a bead of caulk around the front and sides of the base, leaving the back open so a leak would show.
Maintenance schedule
| Task | How often | Why |
|---|---|---|
| Check for rocking and base leaks | Twice a year | A loose toilet breaks the wax seal |
| Inspect flapper and fill valve | Every 2 to 3 years | Worn rubber causes silent leaks and extra water use |
| Dye-tablet leak check | Yearly | Color in the bowl without flushing means a flapper leak |
| Clean under the rim and jets | Every few months | Mineral buildup weakens the flush |
| Replace supply line | Every 5 to 10 years | Braided lines can corrode and fail |
Frequently Asked Questions
What height is a comfort height toilet?
Comfort height toilets have a rim around 16.5 to 17.5 inches and a seat between 17 and 19 inches above the floor. Standard toilets sit about two inches lower.
Is a comfort height toilet the same as an ADA toilet?
Mostly, yes. ADA rules require a seat 17 to 19 inches high, which is the target of comfort height models, but you also need the correct clearances and grab bars for full compliance.
Are comfort height toilets good for short people?
They can be awkward for shorter adults and children because feet may not rest flat. A small footstool fixes that and can improve posture.
Do comfort height toilets cost more?
Usually only a little. Most brands sell chair-height and standard-height versions of the same model at similar prices.
Can I install a comfort height toilet in place of a standard one?
Yes, as long as the rough-in matches. The flange position is the same, so it is a direct replacement.
Is taller always better?
No. Taller helps people with mobility limits, but a seat that is too high can strain the legs and lower back of shorter users. Pick the height that suits the shortest regular user.
