Japanese Language Learning Levels
When I started learning Japanese, I quickly realized that "getting better" is a vague goal. I wrote about it here and here. Now, 112 days in, I see a need to track my progress against a few standards. To track my progress, I had to look at three very different yardsticks: the JLPT, the CEFR, and Duolingo (Duo is not an acceptable standard yet, but it is getting there) . Each measures proficiency differently, and understanding how they intersect has been key to my roadmap.
The Three Benchmarks
JLPT (Japanese-Language Proficiency Test):
This is the "gold standard" for non-native speakers. It’s a standardized test offered by the Japan Foundation and Japan Educational Exchanges and Services. It focuses heavily on reading and listening, divided into five levels: N5 (easiest) to N1 (most difficult).
CEFR (Common European Framework of Reference for Languages):
This is an international standard for describing language ability. It doesn't just apply to Japanese; it’s a global scale from A1 (Beginner) to C2 (Mastery). It measures what a student "can do" with the language in real-world scenarios, like ordering food or discussing complex news.
Duolingo Score:
While many know Duolingo by its "Sections," the app uses a more granular Duolingo Score (ranging from 0 to 160) to estimate proficiency. This score is designed to align with CEFR standards, providing a data-driven look at where you sit on the global scale. Currently Japanese only has up to 130 score.
I was checking various reditt threads:
As per this user above who completed the course recently, say that section 4 unit 12 is a special milestone, after that Duo becomes less useful (Kanji Dump).
| Metric | Level / Score | What it means in practice |
|---|---|---|
| CEFR | A2 (Elementary) | You are moving past simple greetings. You can handle "social" Japanese—making plans with friends, discussing basic work/school topics, and describing your environment. |
| JLPT | N5 (Solid) / N4 (Prep) | You have mastered the N5 basics. You are now deep into the grammar required for N4, such as potential forms, conditional "if" statements (たら/ば), and more complex particle usage. |
| Duo Score | 35–44 | You are no longer a "Rookie." You have entered the "Explorer/Traveler" phase where you can survive a trip to Japan with more than just memorized phrases. |
I will go into the detail of this, but before that I must discuss the score standards of the three grading systems.
Scoring System
Scoring and Proficiency
The scoring systems aren't 1:1, which is where the 'tracking' gets interesting:
The JLPT Scale:
You are graded on a total of 180 points. Interestingly, just passing isn't the whole story. For instance, according to the latest official standards, simply passing the N3 (the intermediate level) doesn't necessarily mean you've reached "Independent User" status; you often need a higher sectional score to be officially mapped to a higher CEFR level.
I found this image and a detailed document here.
This is someone who passed N4, and the example score; the way I read this is, this person got 100 as a total score, which is higher than 90. As long as it is higher than 90, he would be considered A2 in the CEFR scale.
This is someone who did not pass Nr, and the example score below;
As per this scoring system, the CEFR level is not shown, whether it is A1 (which is below A2) or not is unknown.
The CEFR Scale:
CEFR is an international standard that measures language proficiency across a six-level scale, focusing on a learner's practical "can-do" abilities rather than just theoretical knowledge. It is divided into three broad tiers: the A level (Basic User), which covers survival-level communication like introducing oneself or basic shopping; the B level (Independent User), where a learner can navigate most travel situations and express opinions on familiar topics; and the C level (Proficient User), representing near-native fluency and the ability to handle complex, nuanced academic or professional discourse. Unlike traditional tests that might focus solely on grammar, the CEFR provides a holistic view of how well a person can listen, read, speak, and write in real-world contexts, making it the universal "global yardstick" for language achievement.
The Duolingo Scale:
A score of 0–29 covers early to high A1 (basic phrases). To reach B1 (threshold level), you're looking at a score of 60–99. My research (and common consensus in the community) suggests that while Duolingo is excellent for the climb, it effectively caps out around 130, which aligns with the C1 level, as per some users, while others think it is unlikely to be beyond B2-N2 (especially for Japanese). While Duo provides the building blocks for mastery, but true C2, or even B2 as per a lot of users, usually requires immersion beyond the app.
When, I combined all these, I get the triangular plot I placed at the top of the blog.
The "S4U12" Threshold:
In my research, I stumbled upon a discussion from a learner who finished the entire 639-day Japanese marathon on Duolingo. His main takeaway? There is a very specific wall you hit at Section 4, Unit 12, and after that, the "law of diminishing returns" kicks in hard.
According to his experience, everything up to Section 4, Unit 12 is the "sweet spot." It’s where you build your functional baseline—the grammar, the core verbs, and the sentence structures that roughly align with the first half of a textbook like Genki I.
But after Unit 12, the course takes a sharp turn. The Reddit community describes it as a massive "Kanji Dump." Essentially, the app stops introducing meaningful new grammar and starts throwing endless lists of Kanji and vocabulary at you without much context for conversation. This user estimated that about 75% of his total time was spent grinding through these Kanji lessons just to "turn the squares gold."
The user’s advice—which I plan to follow—is to use Duolingo to reach that specific baseline and then pivot. He recommends moving into more traditional resources like the Genki series or using AI tools like ChatGPT to actually converse, rather than just clicking tiles.
As he put it: "You will not learn any new grammar from here on out... anything to do with really learning to converse will not be learned here."
Currently, I am at Duo score of 13, which is Section 2 Unit 10. S4-U12 will be about score of 35. At that point I plan to jump off to full text book mode, perhaps even transition slowly into it.
Doing the math on my current pace was a bit of a reality check. At my current rate of 1 unit every 3 days, it’s going to take me another 345 days—nearly a full year—to reach the 'S4U12' jumping-off point.
N4 proficiency and you're already good enough to converse in Japan as a foreigner. There are youtube videos out there that teaches Minna no Nihongo chapters 1-50 (levels N5, N4).
Thank you for Minna no Nihongo!!
Very helpful!
I never thought much about any of these scales when I was learning Spanish these last few years. In fact, all I really was concerned about was my silly DuoLingo active streak. It was in the last year or so when I realized I was totally consumed with continuing my streak, while my language skills were not improving that much. I hit a plateau and I wasn't taking it seriously anymore after about 2 years active.
Then once my partner turned her back on our plans to relocate to Costa Rica or Panama, I stopped my daily use of DuoLingo altogether. I'm still glad I spent a few years to build my basic vocabulary knowledge and conjugation of pronouns and verbs, but I think my next goal for language acquisition will be to try something less gamified like Rosetta Stone. At the very least, I am in a much better place to help my 6th grade students, about half of which are non-native English speakers coming mostly from Ecuador.
Yes, that is the problem in a nutshell. Duo is great for continuity but not good for proficiency. In its core, Duo is a game. That is both good and bad. So, sort of you have to take the good and discard the bad.
Also since Japanese is one of the hardest language to learn and it takes so long even for people who is studying seriously, it rather important to be smart about it.
I didn't realize Japanese is such a challenge. I've already learned two different alphabets (English and Hebrew). How hard could a third be (sarcastic)?
Hiragana and Katakana are easy enough. It's the Kanji (Chinese characters) that pose a challenge 😀
I tried Duolingo some months ago, to try Italian. After 5 days I lost my streak already and never returned.
Now I am thinking of picking up Spanish. I may follow your research, go with Duolingo until I reach the sweet spot and then use other resources. Now it is up to me to make it all the way to the sweet spot. Perhaps I will. Have someone I can converse in Spanish with, which should give me an extra push. Thanks for the extensive research and post on it.
I am good at research, but not so good at language learning :)
😆
Whoa, it's like two years long? That's crazy. I guess you probably need the time when it is that complex.
Yes, 2 years is typical.
For me, could even be slower.
Thank you for sharing and publishing this valuable and detailed information.
Regards.