calculator case
Skip itA small market ($32K/yr) — this niche doesn't clear our bar today.
Review moat
Good719.88avg incumbent reviews — the moat a new listing must climb
Avg price
Good$14.05avg listing price — sweet spot $15–$100
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Brand share
Good71%top-5 brand share — brands hold most of the demand
Price range
Okay$5.98–$20.93cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Returns
Bad5.0%return rate — above 5% kills the launch gate
Growth
Bad-2.2%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$32K$32K/yr · 77K searches
According to Flapen's Amazon United States niche tracking, calculator case is a $32K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jul–Aug–Sep. Verdict: Skip it — 36/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
calculator case market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $42K–$56K
- units × avg price
- Conversion rate
- 3.0%
- Avg BSR
- #69
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 88%
- Out of stock
- 1.4%
- Avg brand age
- 55 months
- Avg seller age
- 172 days
Competition & brand share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
18
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
50%
Top 20: 84%
Open market
23%
- Elonbo28%
- L LTGEM15%
- RIYADAone12%
- BOVKE9%
- Lebakort7%
- Baval5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.2% search growth over the last 90 days.Peak months: Jul, Aug, Sep · busiest ÷ quietest = 9.4×
Top calculator case search terms
- calculator case21K/yr
- ti-84 plus ce case7K/yr
- ti 84 plus ce case10K/yr
- ti 84 case8K/yr
- ti84 case5K/yr
- ti-84 case4K/yr
- ti 84 graphing calculator case8K/yr
- graphing calculator case4K/yr
- ti 84 calculator case4K/yr
- ti 84 plus case3K/yr
Top calculator case 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
Elonbo Carrying Case for Texas Instruments TI-84 Plus CE/TI-84 Evo/TI-84 Plus/TI-83 Plus/TI-83 Plus CE Color Graphing Calculator Extra Mesh Pocket Fits Charging Cable Charger Manual Black
Elonbo$12.314.8★507 rev
Elonbo Carrying Case for Texas Instruments TI-84 Plus CE/TI-84 Evo/TI-84 Plus/TI-83 Plus/TI-83 Plus CE Color Graphing Calculator Extra Mesh Pocket Fits Charging Cable Charger Manual Rose Gold
Elonbo$11.684.8★507 rev
Hard Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-Nspire CX II CAS/TI-Nspire CX II/TI-83 Plus/TI-85 /TI-86 /TI30xs /TI36X Pro/TI 34 Color Graphing Calculator (White)
L LTGEM$11.344.6★400 rev
Lebakort Hard Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-84 Evo/TI-Nspire CX II CAS/TI-Nspire CX II/TI-83 Plus/TI-89 Titanium/TI-85 / TI-86 Color Graphing Calculator (Black)
Lebakort$16.784.8★343 rev
BOVKE Hard Carrying Case for Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-83 Plus CE/TI-83 Plus/Casio fx-9750GIII Graphing Calculator Extra Pocket for USB Cables Manual Pencil Ruler Black
BOVKE$12.844.7★6,084 rev
Newest
by launch date
YouKnow PU Leather Protective Case Compatible with Texas Instruments TI-84 Plus CE Color Graphing Calculator with ID Card Slot (Only Case) (Black)
YouKnow$20.9340 rev
Anleo Hard Travel Case for Texas Instruments TI-30XIIS / TI-30X IIS 2-Line Scientific Calculator (Black)
Anleo$8.587 rev
co2CREA Carrying Case for Texas Instruments TI-84 Plus CE Python/TI-84 Evo/TI-Nspire CX II CAS/TI-Nspire CX II/TI-83 Plus/TI-89 Titanium Color Graphing Calculator Fractal Frost Case
co2CREA$17.451,025 rev
BOVKE Hard Travel Case for Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-83 Plus CE/TI-83 Plus/Casio fx-9750GIII Graphing Calculator Mesh Pocket for USB Cables Manual Pens Accessories Rosegold
BOVKE$12.216,084 rev
Elonbo Carrying Case for Texas Instruments TI-84 Plus CE/TI-84 Evo/TI-84 Plus/TI-83 Plus/TI-83 Plus CE Color Graphing Calculator Extra Mesh Pocket Fits Charging Cable Charger Manual Rose Gold
Elonbo$11.68507 rev
Trending
90-day click momentum
ZORETCO Hard Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus (Case Only)
ZORETCO$5.984.6★
Anleo Hard Travel Case for Texas Instruments TI-30XIIS / TI-30X IIS 2-Line Scientific Calculator (Black)
Anleo$8.585.0★
Elonbo Carrying Case for Texas Instruments TI-84 Plus CE/TI-84 Evo/TI-84 Plus/TI-83 Plus/TI-83 Plus CE Color Graphing Calculator Extra Mesh Pocket Fits Charging Cable Charger Manual Rose Gold
Elonbo$11.684.8★
Case for Texas Instruments TI-84 Plus CE/TI-84 Evo/TI 84 Plus/TI-Nspire CX II CAS/TI-Nspire CX II Graphing Calculator Mesh Pocket for Charging Cables Pens and Rule(Black)
L LTGEM$15.494.6★
RIYADAone Hard Case Replacement for Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-84 Evo/TI-Nspire CX II CAS/TI-Nspire CX II/TI-83 Plus/TI-89/TI-85/TI-86 Color Graphing Calculator (Mint Green Case)
RIYADAone$18.034.7★
What buyers say about calculator case
What buyers praise and complain about, mined from review topics.What buyers love
“Great product”
“Good fit”
“Case is rugged and roomy”
“Best protective case and Reminder”
“Affordable”
“feel of this storage case”
“works even better than I expected”
“Durable”
“well designed”
“Very portable my calculator fits like a glove inside it”
What buyers complain about
“No calculator whoops”
“it is for very expensive calculator”
“the zipper snapped off after approximately 6 months of ownership”
“I thought my high-school daughter was definitely going to balk about it being too big”
“it was dry”
Top return reasons
Common questions
- Is calculator case profitable to sell on Amazon United States?
- The niche generates $32K/yr across 33 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.2%. Flapen's verdict: Skip it (36/100).
- How competitive is the calculator case niche?
- 16 brands and 18 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in calculator case?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Zipper Quality. The return rate is 5.0% — above our launch gate.
- When does demand for calculator case peak?
- Demand peaks in Jul–Aug–Sep; the busiest month runs 9.4× the quietest.
- What does it cost to enter the calculator case niche?
- Listings span $5.98–$20.93; the average listing price is $14.05 (sweet spot $15–$100). The average incumbent carries 720 reviews — the moat a new listing must climb.