Best Office Chair for Tall People in Australia

Height alone is not enough.

A reader pointed out something real on an earlier version of this page: it showed that someone 183cm tall needs roughly 60cm of seat height, then linked chairs that fell short of that by several centimetres. That's a fair complaint, and it points at the actual problem with how most ergonomic office chair guides for tall people work. They match a chair to your overall height. Overall height is not what determines fit. Leg length is, and two people the same height can need seat heights several centimetres apart.

Why Two People the Same Height Need Different Chairs

It's Leg Length, Not Height

Sit on the edge of a table so your legs hang freely. Measure from the floor to the crease behind your knee. That number, not your total height, is the seat height you actually need, so your feet sit flat and your knees land near a right angle.

Two people can both stand 183cm tall with proportionally different leg lengths, one with a longer torso and shorter legs, one the reverse. A chair sized purely off the '183cm needs X cm' logic gets one of those people right and the other wrong, which is exactly the kind of mismatch the earlier version of this page ran into.

Checking Your Exact Fit, Not a Height Bracket

The Compare Tool Exists Specifically for This

Rather than publish another single number that may or may not match your proportions, the accurate way to check this is Sihoo's compare products tool, which takes your height directly and checks it against each model's seat height range. Specs confirmed from the official product page show without a marker. Specs estimated from the closest comparable model, where a chair doesn't have a published figure, are marked with an asterisk, so you can see exactly how confident each number is rather than treating every figure as equally certain.

This matters more for tall users than almost anyone else, since the gap between 'suits most people' and 'suits you specifically' widens the further you sit from average height. Run your exact height through the tool before relying on any general guide, including this one.

Working Out Your Own Number

If You're Searching for a Specific Seat Height in cm

Some people land on this page already knowing the number they need, searching directly for a specific seat height rather than a general recommendation. That's actually the right instinct.

To find your number without guessing: sit on the edge of a table, bed, or bench high enough that your legs hang completely free, not touching the floor. Measure straight down from the underside of your thigh, just behind the knee, to the floor. That figure is your target seat height, the point where your feet will sit flat and your knees will land at roughly a right angle once you're in the chair.

• Around 40 to 44cm suits most people between roughly 155cm and 170cm tall, though leg proportion varies.

• Around 44 to 48cm suits most people between roughly 170cm and 185cm tall.

• Above 48cm is where standard chairs increasingly fall short, and checking a specific model's maximum seat height becomes essential rather than optional.

These bands are a starting estimate, not a substitute for your own measurement. Once you have your number, that's the exact figure to check against a model's stated seat height range, not your overall height.

Which Models Actually Suit Taller Users

Manufacturer Range vs. What Independent Testing Found

Manufacturer specs and independent reviews don't always agree, and taller users are exactly where that gap tends to show up. Both are worth knowing.

The Doro S300 and Doro C300 note is the direct answer to the complaint that prompted this rewrite. The manufacturer's stated range and independent testing don't fully agree on the C300, which is worth knowing plainly rather than repeating only the manufacturer figure.

Big and Tall: When Weight Capacity Matters as Much as Height

Two Different Specs, Often Confused

Height and weight capacity are separate specs, and a chair suited to your height isn't automatically rated for your weight. Check both independently, since a frame built for a tall, lighter user can flex or wear faster under a heavier load it wasn't rated for.

The M18 carries a higher weight rating relative to its price point, making it a reasonable starting point for big and tall users on a budget. The Doro C300 and Doro S300 both carry higher weight ratings again, alongside their extended height range, which is why they come up repeatedly for users who are tall and want a higher weight capacity in the same chair rather than choosing between the two.

For Workplaces: Fitting a Team With a Wide Height Range

One Model Rarely Covers Everyone

A team with a wide height range, particularly one including several tall staff, is poorly served by standardising on a single chair model. The compare products tool can be run against multiple team members' heights individually before an order is placed, which catches mismatches before delivery rather than after complaints start coming in. For larger or mixed-height orders, Sihoo's wholesale office chairs programme handles bulk pricing and can advise on model mix for a team spanning a wide height range.

Once chairs arrive, correct adjustment matters as much as the right model. A tall user in the right chair left at factory settings still won't get the fit they paid for.

The full setting-by-setting sequence is at how to properly adjust your ergonomic chair, worth running through regardless of how well the model itself was matched.

Conclusion

Measure legs, not height.

The single biggest fix for tall-user chair shopping is dropping the shortcut of matching a chair to overall height. Measure floor to knee crease instead, then check that number against a specific model's confirmed range rather than a general 'suits tall people' claim. The Doro S300 currently has the widest confirmed range in the lineup, the Doro C300 is strong on paper but worth checking carefully above 180cm given independent test findings, and the V1 is not the first option once you're past about 175cm.

Run your exact height through the compare products tool before buying, rather than relying on a general height bracket, including the ones in this guide.

Better Comfort Starts Now.