journal ruler
Skip itSoft demand (-38.6% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Review moat
Good907.34avg incumbent reviews — the moat a new listing must climb
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Brand share
Good69%top-5 brand share — brands hold most of the demand
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Bad$7.56avg listing price — sweet spot $15–$100
Market size
Bad$45K$45K/yr · 131K searches
Price range
Bad$2.07–$16.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-38.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, journal ruler is a $45K/yr Amazon United States market (131K searches/yr). The top 5 brands hold 69% of demand. Verdict: Skip it — 42/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
journal ruler market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $45K–$60K
- units × avg price
- Conversion rate
- 4.5%
- Avg BSR
- #487
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 74%
- Out of stock
- 5.4%
- Avg brand age
- 37 months
- Avg seller age
- 182 days
Competition & brand share
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
22 rising
Sellers
102
Top-5 brand share
69%
Top 20: 98%
Top-5 click share
48%
Top 20: 82%
Open market
28%
- Westcott21%
- PETER PAUPER PRESS19%
- Midori19%
- Mr. Pen5%
- Zotemo4%
- Sunsella4%
Demand
Weekly Amazon search volume, last 23 weeks — -38.6% search growth over the last 90 days.Top journal ruler search terms
- journal ruler19K/yr
- small ruler for journaling13K/yr
- ruler for journaling13K/yr
- bullet journal ruler11K/yr
- stencil ruler9K/yr
- ruler bookmark7K/yr
- journaling ruler9K/yr
- planner ruler13K/yr
- bookmark ruler6K/yr
- mini ruler for journaling6K/yr
Top journal ruler 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Metal Stencil Bookmark for Bullet Journals Hardcover
PETER PAUPER PRESS$6.224.5★8,668 rev
DESIGNPHIL 42290006 Midori Clip Ruler Copper A
Midori$10.254.5★228 rev
Westcott Transparent 10ths Graph Ruler Dual Scales Zero-Centering Back-to-School School Supplies Classroom Supplies 6-Inch
Westcott$2.914.5★981 rev
Westcott 10561 Acrylic Clear Ruler 6 in
Westcott$2.694.7★1,362 rev
Westcott W-10 6-Inch 8ths Graph Ruler Transparent 1 x 6 in
Westcott$3.094.5★1,640 rev
Newest
by launch date
6Pcs Journal Ruler Page Marker Planner Ruler Spiral Notebook Planner Bookmark A5/A6/A7 6-Binder Rulers with Holes Measuring Tool Black & Clear 3 Size
Racvofy$6.591 rev
Zotemo 2-in-1 Foldable Metal Ruler & Protractor -15cm Compact to 30cm Extended Precision Laser Etched Metric Scale Aluminum Folding Small Ruler for Planner Journaling Drafting Drawing (Lavender)
Zotemo$8.9534 rev
Stainless Steel Pocket Journaling Card Bullet Point Stencils Planner Stencils Calendar Stencil & Habit Tracker Unique Shapes Journal Ruler & Bookmark for A5 Planners & Journaling Supplies
Sunsella$14.7240 rev
Pocket Journal Stencil - Stainless Steel Metal Bookmark with Circle Template Ruler Conversion Protractor & Golden Ratio - Planner Accessories for Journaling Bible Study Sketching & Notes
Sunsella$16.3265 rev
Zotemo 6 Inch Metal Ruler Set - Dual Scale Metric & Imperial 150 mm Straight Edge Rule Laser Engraved Edge-to-Edge Measuring for School Geometry Crafting & Gifts (2-Pack)
Zotemo$8.94141 rev
Trending
90-day click momentum6Pcs Journal Ruler Page Marker Planner Ruler Spiral Notebook Planner Bookmark A5/A6/A7 6-Binder Rulers with Holes Measuring Tool Black & Clear 3 Size
Racvofy$6.595.0★
Zotemo 2-in-1 Foldable Metal Ruler & Protractor -15cm Compact to 30cm Extended Precision Laser Etched Metric Scale Aluminum Folding Small Ruler for Planner Journaling Drafting Drawing (Lavender)
Zotemo$8.954.8★
Stainless Steel Pocket Journaling Card Bullet Point Stencils Planner Stencils Calendar Stencil & Habit Tracker Unique Shapes Journal Ruler & Bookmark for A5 Planners & Journaling Supplies
Sunsella$14.724.1★
Sketchmark ProRuler Bookmark: 12-in-1 Stainless Steel Bookmark Tool for Architects Designers Engineers and Creative Professionals
Sketchmark$10.944.4★
HARFINGTON Straight Ruler 12cm Metric Bookmark Clip Ruler Metal Aluminum Alloy Scale on Both Sides Measuring Scale Tool for Measure Study Reading Classroom Office Silver Tone & Brown
HARFINGTON$9.824.7★
What buyers say about journal ruler
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Perfect size”
“it's well made”
“Easy to use”
“Good value for price”
“It is sturdy”
“It is very thick and hardy; the acrylic is clear”
“durable enough that it should last a long time”
“great design”
“This clear flexible ruler is just what I need for drawing and crafting”
What buyers complain about
“Did not fit”
“a bit flimsy”
“Clear thin plastic”
“A little pricey”
“had some exchanges due to quality issues”
“Especially where shapes are cut out close together as it has a tendency to move”
“The edges aren't sharp despite how thin it is”
“The ruler doesn't really have grip”
“Not metal”
“I think its strange that the measurements dont start until a quarter inch into the ruler”
Top return reasons
Common questions
- Is journal ruler profitable to sell on Amazon United States?
- The niche generates $45K/yr across 35 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -38.6%. Flapen's verdict: Skip it (42/100).
- How competitive is the journal ruler niche?
- 22 brands and 102 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in journal ruler?
- Top complaints mined from reviews: Size-Overall, Strength, Thickness. The return rate is 0.7%.
- What does it cost to enter the journal ruler niche?
- Listings span $2.07–$16.32; the average listing price is $7.56 (sweet spot $15–$100). The average incumbent carries 907 reviews — the moat a new listing must climb.