---
title: "18 Inch Level — $623K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/18-inch-level"
last_updated: "2026-08-08T10:16:17.187Z"
locale: en
meta:
description: "Niche score 48/100 · $623K/yr market · 381K searches/yr · $28.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $623K/yr market · 381K searches/yr · $28.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "18 Inch Level — $623K/yr Amazon US Niche (2026) - Flapen"
---
# **18 inch level**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 65Growth 23Conversion 65Competition 37Returns 95Price range 82Avg price 95Brand share 0Review moat 45Quality gap 19
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$28.04**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.91–$41.41**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$623K**
$623K/yr · 381K searches
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****2,047.61**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-3.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 18 inch level is a $623K/yr Amazon United States market (381K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 48/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **18 inch level market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **$421K–$561K**
- units × avg price
- **Conversion rate**
- **5.8%**
- **Avg BSR**
- **#131**
- **Page quality**
- **0%**
- **Prime**
- **89%**
- **Sponsored**
- **50%**
- **Out of stock**
- **4.5%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**5 **▼falling
**Sellers**
**84**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**0%**
- KLEIN TOOLS68% - Milwaukee19% - DURATECH6% - WORKPRO4% - Arrow Fastener3%
## **Demand & seasonality**
Weekly Amazon search volume, last 82 weeks — -3.2% search growth over the last 90 days.
9K7KSpike '25Black Friday '25 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/18-inch-level/trend)
## **Top 18 inch level search terms**
- **klein level**76K/yr+0.1%8.7% conv. - **milwaukee level**84K/yr-14.4%1.5% conv. - **nivel klein tools**30K/yr+27.8%4.4% conv. - **nivel milwaukee**25K/yr+16.5%0.6% conv. - **klein level magnetic**19K/yr-11.3%9.7% conv. - **klein tools level**17K/yr+5.9%4.2% conv. - **milwaukee torpedo level**16K/yr-3.8%1.9% conv. - **klein torpedo level**14K/yr+2.1%9.4% conv. - **conduit level**15K/yr-18.3%2.3% conv. - **electrician level**13K/yr-8.5%2.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/18-inch-level/search-terms)
## **Top 18 inch level products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$62K20%$125K30%$187K40%$249K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Klein Tools 935AB4V Level 6-Inch Magnetic Torpedo and Conduit Level with 0/30/45/90 Degree Vials V-Groove and Magnet Track High Visibility Orange**KLEIN TOOLS**$29.83**4.9★5,943 rev](https://www.amazon.com/dp/B01M302QTV) [2**Klein Tools 935RB Torpedo Level 8-Inch Billet Magnetic Level 0/30/45/90 Degree Vials V-Groove Tapered Nose High-Visibility Vial and Body**KLEIN TOOLS**$29.88**4.8★2,299 rev](https://www.amazon.com/dp/B01MF9N8FE) [3**Milwaukee 7 in. Aluminum Magnetic Compact Torpedo Level 3 vial**Milwaukee**$29.45**4.9★85 rev](https://www.amazon.com/dp/B07NNRW9VG) [4**Milwaukee Electric - 9 INCH Torpedo Level with Lighted VIALS**Milwaukee**$27.63**4.6★32 rev](https://www.amazon.com/dp/B0FHH7MPRG) [5**DURATECH 3-Piece Level Tool Set Magnetic Torpedo Level with V-Groove**DURATECH**$30.40**4.7★771 rev](https://www.amazon.com/dp/B0CVVLGTW2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Klein Tools 935RBP 8-Inch Pitch Vial Torpedo Level with Magnetic Track Vials Read 0/45/90 and Pitch in 1/8-Inch Increments Level For Electricians Construction Plumbing and Inspections**KLEIN TOOLS**$24.70**22 rev4mo ago](https://www.amazon.com/dp/B0GS755G4P) [**Milwaukee Compact Billet Torpedo Level**Milwaukee**$40.58**3 rev5mo ago](https://www.amazon.com/dp/B0GKWFSPMD) [**Milwaukee Electric - 9 INCH Torpedo Level with Lighted VIALS**Milwaukee**$27.63**32 rev1y ago](https://www.amazon.com/dp/B0FHH7MPRG) [**Klein Tools 93524MAG 24-Inch Box Level Magnetic Box Beam Bubble Level 3 Vials High Visibility Orange Aluminum Body V-Groove and Magnet Track**KLEIN TOOLS**$40.25**53 rev1y ago](https://www.amazon.com/dp/B0F1QRFBLN) [**ARROW 6.3-Inch Torpedo Level Magnetic Leveler**Arrow Fastener**$18.70**380 rev1y ago](https://www.amazon.com/dp/B0DFBDJ3D7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Klein Tools 935RBP 8-Inch Pitch Vial Torpedo Level with Magnetic Track Vials Read 0/45/90 and Pitch in 1/8-Inch Increments Level For Electricians Construction Plumbing and Inspections**KLEIN TOOLS**$24.70**4.5★**▲ 268%**](https://www.amazon.com/dp/B0GS755G4P) [**Milwaukee Compact Billet Torpedo Level**Milwaukee**$40.58**4.2★**▲ 225%**](https://www.amazon.com/dp/B0GKWFSPMD) [**Milwaukee Electric - 9 INCH Torpedo Level with Lighted VIALS**Milwaukee**$27.63**4.6★**▲ 55%**](https://www.amazon.com/dp/B0FHH7MPRG) [**WORKPRO 12 Inch Magnetic Torpedo Level**WORKPRO**$9.91**4.7★**▲ 27%**](https://www.amazon.com/dp/B09ZPB3FC7) [**Milwaukee 7 in. Aluminum Magnetic Compact Torpedo Level 3 vial**Milwaukee**$29.45**4.9★**▲ 14%**](https://www.amazon.com/dp/B07NNRW9VG)
**~~View all trending →~~**
## **What buyers say about 18 inch level**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“Excellent quality tool”*
**Ease Of Use**16%
*“Easy to operate”*
**Value For Money**10%
*“Good price”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Size-Overall**7%
*“Perfect size”*
**Durability**5%
*“Very durable and accurate”*
**Strength**5%
*“Strong, built-in magnet”*
**Measurement/Reading Accuracy**4%
*“Spot on accurate”*
**Compactness**2%
*“Very compact”*
**Weight Light**2%
*“less bulky than a torpedo level”*
### **What buyers complain about **
**Measurement/Reading Accuracy**23%
*“Not Accurate”*
**Quality-Overall**14%
*“Cheap electronics”*
**Durability**9%
*“the kicker for all this is that they break randomly”*
**Size-Overall**9%
*“A bit larger”*
**Value For Money**8%
*“Not what I paid for”*
**Strength**6%
*“Probably bent”*
**Battery Life**6%
*“batteries are a pain”*
**Mechanism Issues**3%
*“Expect for it to fall off if you use it to bend pipe”*
**Material Quality**2%
*“Not your typical plastic level”*
**Charging**2%
*“4 stars because I wish that it was USB rechargeable”*
### **Top return reasons **
**Size-Overall**23%
**Functionality-Overall**15%
**Value For Money**14%
**Advertised Vs Actual Product**12%
**Measurement/Reading Accuracy**9%
**Defective Material/Parts**5%
**Product Condition**5%
**Battery Inclusion**4%
**Quality-Overall**2%
**Weight Heavy**2%
## **Common questions**
- **Is 18 inch level profitable to sell on Amazon United States?**
- The niche generates $623K/yr across 18 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -3.2%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 18 inch level niche?**
- 5 brands and 84 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 18 inch level?**
- Top complaints mined from reviews: Measurement/Reading Accuracy, Quality-Overall, Durability. The return rate is 0.9%.
- **When does demand for 18 inch level peak?**
- Demand peaks in Oct–Nov–Dec; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the 18 inch level niche?**
- Listings span $9.91–$41.41; the average listing price is $28.04 (sweet spot $15–$100). The average incumbent carries 2,048 reviews — the moat a new listing must climb.
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