Gunpla Grade and Scale 101

This post was updated with new information on September 3, 2019. 

Gunpla is most enjoyable when you pick one that meshes with your skill level. Fortunately, it’s easy to find the perfect model for you since Gunpla categorization is something of a science.

Bandai, the company that manufactures all Gunpla models, categorizes them in two ways—by grade and by scale.

Grade refers not only to the level of mastery you will need in order to complete your Gundam, but the accuracy of the individual parts. A Gundam of a very detailed grade will be most true to life, er, true to the way it looks on the show. However, it’ll also be the trickiest to assemble. Here’s a list of the most common grades and scales you will encounter:

Super Deformed

Or “SD” for short. Made to look like tiny, cutified robots, these models have the fewest parts and smallest stature of them all.

Super Deformed EX Standard

Launched in 2015, this line is a type of SD kit that has more poseability and slightly more realistic proportions. Its accessories are large enough that they can be used interchangeably with High Grade models.

Super Deformed Cross Silhouette

Released in 2018, this line of SD kits features inner frame technology similar to Real Grade. As a result, these kits can be built on one of two proportions of inner frame—an 8.5 cm “SD” Frame similar to the classic SD line, or a taller 9.5 cm “CS” frame. Many kits in this grade come with both frames included, but they are also sold separately.

High Grade

The next step up. Believe it or not, the name originates from the fact that Bandai started releasing these in 1990 as the most complex and intricate models they offered. When they found out there was a demand for even greater accuracy, they began releasing more and more complex grades of models. Today, these are not considered complex and make great beginner Gundams.


Announced in 2014, the Reborn 100 Gundam grade also has its scale in the name. Usually written as RE/100 for short, this grade has the level of complexity of a High Grade made easier by the fact that all the parts are larger, leading to a larger scale finished product.

Real Grade

A grade launched in 2010, it includes an internal skeleton underneath plate-like top parts. The insides make it more posable, while the typical 1:144 scale makes it more intricate. These are about as difficult to put together as Master Grade models. Today, builders prize the complexity and detail combined with the smaller scale of Real Grade, and these often sell out quickly.

Master Grade

Released in 1995, these models are intricate without being excessively expensive. In our opinion, these frequently larger (1/100 scale, usually) kits have seen the biggest improvement over time. The more recent the model, the easier it is to create a good-looking Master Grade with less time and less skill. However, as the name implies, it’s best to have completed a few other models before undertaking one of these.

Perfect Grade

You can’t get any more accurate than this. Or any more expensive! These are the largest, most detailed models of all. If you don’t think building one of these is a challenge, you should sign up for the Gundpla Builders World Cup right now!

See also: Perfect Grade Unicorn Gundam: Photoshoot

Next, let’s move on to scale. Gunpla kits generally come in several scales, based on how the model would measure up to an actual Gundam. There are several models that defy this scale, but they’re fewer and farther between. Here are the most common scales you’ll see in the world of Gunpla:

  • 1/144: The smallest scale available. I was surprised when I made my first Gundam in this size and its face was only the size of my thumbnail. It looked a lot bigger on the box. Keep in mind that just because a 1/144 is the smallest size doesn’t mean it is always the least detailed. Real Grade and High Grade models are available in this scale.
  • 1/100: The next size up. I’ve got my eye on a few models that come in this size. Master Grade models come in this scale, as do Reborn-One Hundreds.
  • 1/60: You can get less detailed with High Grade or go all the way with Perfect Grade, but nobody’s going to miss something of this size sitting on your shelf.
  • 1/48: This is commonly known as Mega Size. It’s huge but there are only a select few available kits (here’s one of RX-78-2!), so you don’t see it very often.
  • 1/12: These are usually used for display at hobby shops. Every now and then one goes on the market to the tune of $3,400 or so!
  • 1/1: All right, you can’t actually make one of these, but you can go see it in Japan!
  • Nonscale: Anything that isn’t scaled in relation to the specifications from the show. SD Gunpla almost always fit into this categorization.

Let’s take a look at some of these grades and scales lined up next to one another:


So quiz yourself: Which of the Gundams pictured was the hardest to build? It was NOT Victory Gundam (High Grade 1/60). It’s easy to make this misconception because the hardest Gundam models on the market—Perfect Grades—are almost always 1/60 scale.

But as we know now, scale has nothing to do with difficulty. The grade will always determine how many pieces make up a model, and therefore how hard it is to build.

The real toughie of the bunch is Crossbone Gundam (Master Grade 1/100). As a Master Grade, it has the most parts, and these parts have been manufactured with the finest quality. For example? Crossbone has working fingers that can grasp weapons just like a real hand.

Note also that Crossbone is smaller than many Master Grades might be, because in the Crossbone Gundam manga, it was an especially small Gundam.

Below, I’ve lined up several High Grade Gunpla, 1/144 scale. Each of these is the exact same scale, but they’re all different sizes, because the Gundams in the show were different sizes! You can tell here that G Gundam mechas were way tinier than Gundam Unicorn ones. It also looks like Gundams have just gotten bigger over time!


So to summarize: always look at Gunpla grade before scale. Grade determines difficulty and accuracy (not to mention price!) and you’ll have a miserable time as a beginner if you make your first model a Master Grade or higher.

Have you built a Gunpla recently? Be sure to share it with us!

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