21 Inch Lawnmower
MaybeSearch demand grew +136.8% this quarter. But prices span $128.43–$812.55, mostly outside the sweet spot, so 21 Inch Lawnmower is a Maybe.
- Flapen Score
- 58 / 100Top 39% of 8,839 Patio, Lawn & Garden niches · +2 vs the category median of 5658
- Market size
- $136K/yr58K searches / yr
- 90-day growth
- +136.8%search demand this quarter
- Competition
- 35%top-5 click share · 20 brands · 42 sellers
Flapen Score
21 Inch Lawnmower against its category
The dotted line is the Patio, Lawn & Garden average. Past it, 21 Inch Lawnmower is stronger. Inside it, weaker.
Market
The 21 Inch Lawnmower market on Amazon at a glance
Shoppers on Amazon United States searched for 21 Inch Lawnmower 58K times last year and spent an estimated $136K. The top 5 brands take 69% of clicks. Demand peaks in Apr–May–Jun–Jul. Flapen scores it 58 out of 100, a Maybe.
01 · Demand
An estimated 0.7% of those searches ended in a purchase.
Shoppers searched for this 58K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.7% of those searches ended in a purchase. Searches in the last 90 days moved +136.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $136K a year.
- Searches, last 12 months
- 58K
- Growth, 90 days vs prior 90
- +136.8%
- Conversion, latest week
- 0.7%
- Market size, estimated
- $136Ka year
- Peak month
- May9.6× the quietest month
- Top search term
- electric self propelled lawn mower21K searches a year
02 · Price
A sale here is worth $327.61.
Listings sell for $327.61 on average, from $128.43 to $812.55. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At $327.61 that is $0 to $33K a year per listing.
- Average price
- $327.61above the $15 to $100 sweet spot
- Price range
- $128.43–$812.55
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 250–500
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$33K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
89% of listings pay for placement with sponsored ads. 81% ship with Prime. On an average day, 19.7% of listings are out of stock. The average listing ranks #172 within Lawn Mowers & Tractors. It carries 965 reviews at 4.03 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 81%
- Out of stock, average day
- 19.7%
- Average rank
- #172in Lawn Mowers & Tractors
- Average rating
- 4.03 starsAmazon United States average 4.42 stars
- Average reviews
- 965per listing
- Listings tracked
- 53
04 · Newcomers
14 of last year's 18 launches cleared the first-year sales bar.
18 products launched here in the last 12 months. 14 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 33 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 18
- Successful launches
- 14Amazon's first-year sales bar
- Average brand age
- 33 months
Products
Top 21 Inch Lawnmower 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 16, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower Kit Includes 6.0Ah Battery and Auto PWR JUMP Charger - SM4910C-11
- Price
- $345.13
- Rating
- 4.5/5
- Reviews
- 159
- Age
- 2y ago

Stihl RME 235 1.2 kW 13 kg Lightweight Electric Lawn Mower with 33 cm Cutting Width With 30 Litre Grass Collection with Level Indicator
- Price
- $374.51
- Rating
- 4.3/5
- Reviews
- 60
- Age
- 2y ago

Greenworks 80V 21 Self-Propelled Cordless Lawn Mower Brushless Motor LED Lights 4.0Ah Battery & Rapid Charger (75+ Compatible Tools)
- Price
- $467.98
- Rating
- 4.5/5
- Reviews
- 548
- Age
- 2y ago

Greenworks 40V 16 (Push) Cordless Lawn Mower 4.0Ah Battery (1/3 Acre Push Button Start Compatible with 75+ Tools)
- Price
- $228.07
- Rating
- 4.2/5
- Reviews
- 12,027
- Age
- 13y ago

Greenworks 60V 21 Brushless (Self-Propelled) Cordless Lawn Mower 2 x 4.0Ah Batteries (3/4 Acre Rapid Charger 4-in-1 LED Lights IPX4)
- Price
- $477.88
- Rating
- 4.5/5
- Reviews
- 582
- Age
- 4y ago
Trending
estimated 90-day click momentum
18 Electric Lawn Mower 40V Self-Propelled Cordless Mower with 2x5.0Ah Batteries & Type-C Cables Brushless Motor 2-in-1 Mulching & Bagging 6-Position Height Adjustment for Small to Medium Yards
- Price
- $199.24
- Rating
- 2.8/5
- Reviews
- 25
- Age
- 4mo ago

40V Cordless Lawn Mower 17 Walk Behind Electric 4.0 Ah Battery Powered Lawnmower with 50L Grass Bag Brushless Motor 6 Adjustable Cutting Heights for Garden/Patio/Yark/Lawn
- Price
- $205.44
- Rating
- 3.7/5
- Reviews
- 51
- Age
- 2mo ago

Litheli 18-inch 40V Self-Propelled Brushless Lawn Mower for Garden Yards Lightweight Cordless Mower with 6-Position Height Adjustment 25.0Ah Batteries Included
- Price
- $214.11
- Rating
- 2.0/5
- Reviews
- 20
- Age
- 3mo ago

Litheli 18 Self-Propelled Lawn Mower 40V Battery Lawn Mower(2 x 5.0Ah) Push Mower with Brushless Motor 2-in-1 Mulching & Bagging
- Price
- $192.77
- Rating
- 3.9/5
- Reviews
- 280
- Age
- 1y ago

Stihl RME 235 1.2 kW 13 kg Lightweight Electric Lawn Mower with 33 cm Cutting Width With 30 Litre Grass Collection with Level Indicator
- Price
- $374.51
- Rating
- 4.3/5
- Reviews
- 60
- Age
- 2y ago
Newest
by launch date
40V Cordless Lawn Mower 17 Walk Behind Electric 4.0 Ah Battery Powered Lawnmower with 50L Grass Bag Brushless Motor 6 Adjustable Cutting Heights for Garden/Patio/Yark/Lawn
- Price
- $205.44
- Rating
- 3.7/5
- Reviews
- 51
- Age
- 2mo ago

Litheli 18-inch 40V Self-Propelled Brushless Lawn Mower for Garden Yards Lightweight Cordless Mower with 6-Position Height Adjustment 25.0Ah Batteries Included
- Price
- $214.11
- Rating
- 2.0/5
- Reviews
- 20
- Age
- 3mo ago

18 Electric Lawn Mower 40V Self-Propelled Cordless Mower with 2x5.0Ah Batteries & Type-C Cables Brushless Motor 2-in-1 Mulching & Bagging 6-Position Height Adjustment for Small to Medium Yards
- Price
- $199.24
- Rating
- 2.8/5
- Reviews
- 25
- Age
- 4mo ago

Litheli Lawn Mower 18 Electric Self Propelled for Garden Yards Lightweight Cordless Lawn Mower Brushless with 6-Position Height Adjustment 2 x 20V 4.0Ah Battery
- Price
- $232.81
- Rating
- 3.2/5
- Reviews
- 36
- Age
- 1y ago

Litheli 18 Self-Propelled Lawn Mower 40V Battery Lawn Mower(2 x 5.0Ah) Push Mower with Brushless Motor 2-in-1 Mulching & Bagging
- Price
- $192.77
- Rating
- 3.9/5
- Reviews
- 280
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 35% of clicks, no more. An open shelf where new products get seen.
Brands
20 flat
Sellers
42
Est. top-5 brand share
69%
Top 20: 100%
Est. top-5 click share
35%
Top 20: 74%
Open market
24%
- Greenworks36%
- Skil10%
- Stihl8%
- WORX7%
- EGO Power+7%
- LiTHELi7%
Demand
21 Inch Lawnmower search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 9.6×
Search terms
Top 21 Inch Lawnmower search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- electric self propelled lawn mower21K/yr
- cordless self propelled lawn mower10K/yr
- stihl mower5K/yr
- stihl lawn mower battery powered4K/yr
- stihl electric lawn mower4K/yr
- hart electric lawn mower4K/yr
- yard force lawn mower4K/yr
- lawnmower gas self propelled4K/yr
- push gas lawnmower1K/yr
- 21 inch lawnmower531/yr
Reviews and returns
What reviews say buyers love and hate about 21 Inch Lawnmower
We read the reviews and the return reasons for every product selling here.
“Battery drained”
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.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 21 Inch Lawnmower 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









