This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Readings

Kana: ケン、かこ.い
Romaji: ken, kako.i
Kana
Romaji

Meanings

sphere, circle, radius, range

Stroke Diagram

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Kanji Info

Stroke Count:  12
Radical Number:  31
Frequency:  1216
Grade:  8
Skip Pattern:  3-3-9
Korean Reading:  gweon
Chinese Reading:  juan4
Unicode:  570f
JIS:  3777

Indexes

Halpern Index: 3148
Nelson Index: 1045
New Nelson Index: 960
Spahn Hadamitzky Index: 3s9.1
Four Corner Index: 6071.7
Guide to Remembering Index: 1216
Gakken Index: 1402
Daikanwanjiten Index: 4815P
Daikanwanjiten Index and Page: 3.0091
Remembering the kanji Index: 1208
Kanji Flashcards Index: 1147
Kodansha Compact Index: 345
Kanji in Context Index: 1251
1999 Kanji Learners Index: 2012
2013 Kanji Learners Index: 2714
French Remembering the Kanji Index: 1216
Remembering the Kanji 6th Index: 1293
Essential Kanji Index: 1160
Kodansha Kanji Index: 3904
Roo 2001 Kanji Index: 1056
Tuttle Kanji Cards Index: 1511

Words

(けん)
sphere; circle; range; category (only in the context of "category theory")
圏内 (けんない)
within the sphere
圏外 (けんがい)
outside range; outside orbit
北極圏 (ほっきょくけん)
Arctic Circle; the Arctic
大圏 (たいけん)
great circle
大気圏 (たいきけん)
the atmosphere
商圏 (しょうけん)
business region
成層圏 (せいそうけん)
stratosphere
英語圏 (えいごけん)
English-speaking world
首都圏 (しゅとけん)
the capital city (often Tokyo) area (typically within 50 km of city's centre) (center)
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