- Flapen Score
- 45 / 100Ranks 3,774 of 4,191 DIY・工具・ガーデン niches · −12 vs the category median of 5745
- Market size
- ¥72.4M/yr305K searches / yr
- 90-day growth
- +22.8%search demand this quarter
- Competition
- 100%top-5 click share · 2 brands · 114 sellers
Flapen Score
ケルヒャー K2 against its category
The dotted line is the DIY・工具・ガーデン average. Past it, ケルヒャー K2 is stronger. Inside it, weaker.
Market
The ケルヒャー K2 market on Amazon at a glance
Shoppers on Amazon Japan searched for ケルヒャー K2 305K times last year and spent an estimated ¥72.4M. All 2 brands take every click. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 1.4% of those searches ended in a purchase.
Shoppers searched for this 305K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 1.4% of those searches ended in a purchase. Searches in the last 90 days moved +22.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥72.4M a year.
- Searches, last 12 months
- 305K
- Growth, 90 days vs prior 90
- +22.8%
- Conversion, latest week
- 1.4%
- Market size, estimated
- ¥72.4Ma year
- Top search term
- けるひやー 高圧洗浄機 k2サイレント80K searches a year
02 · Price
A sale here is worth ¥17564.53.
Listings sell for ¥17564.53 on average, from ¥14797.34 to ¥21112.91. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 750 to 1,000 of them. At ¥17564.53 that is ¥13.2M to ¥17.6M a year per listing.
- Average price
- ¥17564.53above the $15 to $100 sweet spot
- Price range
- ¥14797.34–¥21112.91
- Amazon Japan median price
- ¥1942.07across 14,733 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- ¥13.2M–¥17.6M
- Returns
- 0.4%of orders · Amazon Japan median 0.4%
03 · Entry bar
The bar here is ads.
100% of listings pay for placement with sponsored ads. 50% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #35 within 高圧洗浄機・アクセサリ. It carries 946 reviews at 4.28 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 50%
- Out of stock, average day
- 0.0%
- Average rank
- #35in 高圧洗浄機・アクセサリ
- Average rating
- 4.28 starsAmazon Japan average 4.15 stars
- Average reviews
- 946per listing
- Listings tracked
- 4
04 · Newcomers
Brands here are young.
The brands on the shelf have sold for 27 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 27 months
Products
Top ケルヒャー K2 products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 31, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
【Amazon.co.jp限定】ケルヒャー(Karcher) 高圧洗浄機 K2サイレントBC 静音機能 軽量 小型 コンパクト収納 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-924.0
- Price
- ¥17678.85
- Rating
- 4.2/5
- Reviews
- 551
- Age
- 1y ago

ケルヒャー(Karcher) K 2 サイレント 1.600-920.0
- Price
- ¥21112.91
- Rating
- 4.3/5
- Reviews
- 3,018
- Age
- 7y ago

ケルヒャー(Karcher) 高圧洗浄機 K2 Little Premium コンパクト収納 ハイパワーなノズル 付属品充実 軽量 小型 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-931.0
- Price
- ¥14797.34
- Rating
- 4.3/5
- Reviews
- 198
- Age
- 2y ago

ケルヒャー(KARCHER) 高圧洗浄機 K 2 Upright 1.602-517.0
- Price
- ¥16669.01
- Rating
- 4.3/5
- Reviews
- 18
- Age
- 3y ago
Trending
estimated 90-day click momentum
ケルヒャー(Karcher) 高圧洗浄機 K2 Little Premium コンパクト収納 ハイパワーなノズル 付属品充実 軽量 小型 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-931.0
- Price
- ¥14797.34
- Rating
- 4.3/5
- Reviews
- 198
- Age
- 2y ago

【Amazon.co.jp限定】ケルヒャー(Karcher) 高圧洗浄機 K2サイレントBC 静音機能 軽量 小型 コンパクト収納 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-924.0
- Price
- ¥17678.85
- Rating
- 4.2/5
- Reviews
- 551
- Age
- 1y ago

ケルヒャー(Karcher) K 2 サイレント 1.600-920.0
- Price
- ¥21112.91
- Rating
- 4.3/5
- Reviews
- 3,018
- Age
- 7y ago

ケルヒャー(KARCHER) 高圧洗浄機 K 2 Upright 1.602-517.0
- Price
- ¥16669.01
- Rating
- 4.3/5
- Reviews
- 18
- Age
- 3y ago
Newest
by launch date
【Amazon.co.jp限定】ケルヒャー(Karcher) 高圧洗浄機 K2サイレントBC 静音機能 軽量 小型 コンパクト収納 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-924.0
- Price
- ¥17678.85
- Rating
- 4.2/5
- Reviews
- 551
- Age
- 1y ago

ケルヒャー(Karcher) 高圧洗浄機 K2 Little Premium コンパクト収納 ハイパワーなノズル 付属品充実 軽量 小型 簡単接続 洗車 泥 花粉除去効果 黄砂 (50/60Hz) 1.600-931.0
- Price
- ¥14797.34
- Rating
- 4.3/5
- Reviews
- 198
- Age
- 2y ago

ケルヒャー(KARCHER) 高圧洗浄機 K 2 Upright 1.602-517.0
- Price
- ¥16669.01
- Rating
- 4.3/5
- Reviews
- 18
- Age
- 3y ago

ケルヒャー(Karcher) K 2 サイレント 1.600-920.0
- Price
- ¥21112.91
- Rating
- 4.3/5
- Reviews
- 3,018
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 100% of clicks. A locked shelf that new listings rarely crack.
Brands
2 flat
Sellers
114
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
100%
Top 20: 100%
Open market
0%
- KÄRCHER96%
- ケルヒャー(Karcher)4%
Demand
ケルヒャー K2 search demand
Weekly searches over the year. Pick a range.
Search terms
Top ケルヒャー K2 search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- けるひやー 高圧洗浄機 k2サイレント80K/yr
- ケルヒャー k272K/yr
- k2サイレント43K/yr
- ケルヒャー k2 サイレント26K/yr
- ケルヒャーk2サイレント26K/yr
- ケルヒャー サイレント10K/yr
- ケルヒャー高圧洗浄機 k28K/yr
- ケルヒャーk2 サイレント6K/yr
- けるひやー 高圧洗浄機 k25K/yr
- ケルヒャーk26K/yr
Reviews and returns
What reviews say buyers love and hate about ケルヒャー K2
We read the reviews and the return reasons for every product selling here.
“給水ホースが半年の使用で破れました。”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
21 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
FAQ
Common ケルヒャー K2 questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data




