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What Size Herman Miller Chair Do I Need? (A, B or C)

When we talk about office furniture manufacturers, Herman Miller is perhaps the first one that comes to mind. That being said, they carry a wide variety of office chair models, all of which come in different shapes, sizes and are made of different materials.

If you’re considering upgrading to a Herman Miller chair, you might be asking yourself:

“What model should I get?” and “What size Herman Miller Chair do I need?”

In this article, we’ll be going over three of the best-selling Herman Miller Chairs (Aeron, Embody, and Cosm) to discuss size differences, features, and other noteworthy elements to help you make the best choice possible.

What Is An Ergonomic Chair

How many Herman Miller chair sizes are there?

Herman Miller Classic Aeron Chair-Size B
Click image for more info

Herman Miller chairs are adjustable to their users, which has made them a popular brand among offices and other workplaces. Aside from adjustable components, Herman Miller chairs also offer a variety of versions and sizes. This is so they can accommodate more people to use their ergonomic chair solutions.

However, despite their efforts at being an “inclusive” chair brand, most of their chair models aren’t available in that many sizes.

Except the Aeron Chair, which is available in sizes A, B, and C, Herman Miller chairs such as the Embody, Lino, and Cosm are only available in one size.

On the upside, some of their chairs have low-back, mid-back, and high-back variations that could make up for the difference in sizes.

What size Herman Miller chair do I need?

Herman Miller carries more than 30 office chair models, including offshoot brands, like Naughton and Geiger. Each of these models has different dimensions and measurements. To figure out what size Herman Miller chair you need, you first have to settle on a model/chair type you want.

Let’s take a look at Herman Miller’s top 3 best-selling office chairs and see how their sizes and features differ.

Herman Miller Aeron Chair

Sale
Herman Miller Aeron Ergonomic Chair - Size B, Graphite
  • Your purchase includes One Herman Miller Aeron Ergonomic Chair – Size B, graphite color
  • Chair dimensions: 41" H x 27" W x 16.75" D. Seat heights: 16”-20.5”.
  • Tilt Limiter lets you set the recline range at one of three postures. Tension control lets you adjust the amount of...

The Herman Miller Aeron Chair is the company’s number one best-selling office chair. It’s popular for its innovative design that allows for optimum comfort and complete spinal support. It’s also the most inclusive office chair model that the company carries.

Herman Miller Aeron Chairs are available in sizes A, B, and C.

The Aeron Chair model has recently been remastered by the company to accommodate a wider range of body types and user preferences.

This is the current size chart for the remastered Herman Miller Aeron Chairs.

Herman Miller Aeron Chair Size B
Click image for more info

And this is the size chart for the Classic Herman Miller Aeron Chairs.

There’s undoubtedly more versatility to be found with the Remastered models than the Classic versions.

By considering your height and weight, you can determine which Herman Miller Aeron Chair to get.

Here’s a quick example based on the Remastered size chart for your reference:

Let’s say that you’re 5’10” and weigh around 190 lbs. The best size option for you in this situation would either be a size B or C.

Already have an Aeron Chair but don’t know what size you have? Here’s how you can tell what size your Herman Chair Aeron Chair is.

Herman Miller Embody Chair

Herman Miller Embody Ergonomic Office Chair | Fully Adjustable Arms and Carpet Casters | Black...
  • RHYTHM fabric is tight, smooth soft to the touch, and prevents heat buildup
  • INNOVATIVE ERGONOMIC DESIGN - More than 20 physicians and PhDs in the fields of biomechanics, vision, physical...
  • BACKFIT ADJUSTMENT - Embody’s back is designed like a human’s, with a central spine and flexible ribs. The...

The Herman Miller Embody Chair is one of the most well-researched ergonomic chairs. A group of more than 30 physicians worked together to design this chair. It’s the second best-selling office chair by Herman Miller and is one of the best options for people who take ergonomics and proper sitting mechanics seriously.

The Embody’s Pixelated Support mechanism allows it to adapt even to the slightest movement by the user. Furthermore, it eliminates pressure buildup by properly distributing weight across the entire chair body.

Similar to the rest of Herman Miller chairs, the Embody uses a breathable seat and backrest covering for better ventilation. It’s PVC-free and is made of 42% recycled materials.

The Embody Chair only comes in one size with the following dimensions:

Embody Chair
Height (in)45
Height Min (in)42
Width (in)29.5
Depth (in)29
Seat Height Min (in)16
Seat Height Max (in)20.5

If you’re planning to buy an Embody Chair, there’s no other option in terms of sizes.

Herman Miller Cosm (Low-, Mid-, and High-Back)

Herman Miller Cosm Chair, High Back, Carbon
  • Cosm’s sophisticated ergonomic design instantly responds to your body, movement, and posture to provide natural...
  • No adjustments necessary: The auto-harmonic tilt instantly and automatically provides balanced support and...
  • Seamless support: breathable and temperature-neutral, the continuous form of this elastomeric Suspension eliminates...

The Herman Miller Cosm Chair is an award-winning office chair, recognized by Time magazine as one of the “100 Best Inventions of 2019.” It’s designed to provide its users with complete and effortless support across the whole body without necessary adjustments.

This is made possible through Herman Miller’s Auto-Harmonic Tilt mechanism that instantly adapts to a user’s slightest movement.

The Cosm is covered by a state-of-the-art breathable fabric, also called the intercept suspension, that allows for better ventilation and comfort. They also come in various armrest options, such as the Leaf Arms, Height-Adjustable Arms, and Fixed Arms.

If you don’t like having armrests, no problem — Cosm Chairs also come in no-arms versions.

The Cosm chair is available in low-back, mid-back, and high-back variations.

Here are their dimensions for your reference:

Low BackMid BackHigh Back
Height (in)40.254551.25
Height Min (in)3438.7545
Width (in)26.728.928.9
Depth (in)26.726.726.7
Weight (lbs)34.934.934.9
Seat Height (in)212121
Seat Height Min (in)16.516.516.5
Seat Width (in)19.919.919.9
Seat Depth (in)15.415.415.4
Weight Capacity (lbs)350350350

They have a slightly higher versatility rating than the embody chair, but they still aren’t as inclusive as the Herman Miller Aeron Chair models.

The bottom line

Herman Miller is undoubtedly one of the most reliable suppliers of office furniture today. They offer an extensive array of ergonomic options for every type of user. Plus, they design their products to ensure that it lasts you a lifetime — possibly even more.

Still, Herman Miller doesn’t possess as much flexibility in size options for their office chairs. Outside of the Aeron Chair, which has three sizes to choose from, the rest of their chair models only come in one size.

This can be inconvenient for other users who like a specific model (e.g., the Cosm Chair) but have particular needs and size requirements.

You might be able to make up for the lack of sizes by choosing models that closely resemble your needs. But that doesn’t beat choosing the model and design you want in the exact size you need.

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