Is 6 oz plastic cups profitable to sell on Amazon United States?

The niche generates $66K/yr across 35 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +37.3%. Flapen's verdict: Worth a look (61/100).

How competitive is the 6 oz plastic cups niche?

24 brands and 41 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 53% of demand.

What do buyers complain about in 6 oz plastic cups?

Top complaints mined from reviews: Size-Overall, Strength, Dispensing Mechanism. The return rate is 1.1%.

When does demand for 6 oz plastic cups peak?

Demand peaks in May–Jun; the busiest month runs 1.7× the quietest.

What does it cost to enter the 6 oz plastic cups niche?

Listings span $4.72–$37.13; the average listing price is $15.94 (sweet spot $15–$100). The average incumbent carries 1,654 reviews — the moat a new listing must climb.

6 oz plastic cups

Worth a look

Shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Great1.1%

return rate — above 5% kills the launch gate

Brand share

Great53%

top-5 brand share — no brand owns this niche

Avg price

Great$15.94

avg listing price — sweet spot $15–$100

Competition

Great39%

top-5 click share — an open shelf

Conversion

Good6.9%

search→purchase rate — share of searches ending in a sale

Price range

Good$4.72–$37.13

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+37.3%

90-day search growth — must beat 0% to launch

Review moat

Okay1,654.11

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$66K

$66K/yr · 60K searches

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, 6 oz plastic cups is a $66K/yr Amazon United States market (60K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 61/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

6 oz plastic cups market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $64K–$80K; units × avg price
Conversion rate: 6.9%
Avg BSR: #378
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 0.2%
Avg brand age: 51 months
Avg seller age: 174 days

Competition & brand share

Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.

Brands

24 falling

Sellers

Top-5 brand share

53%

Top 20: 96%

Top-5 click share

39%

Top 20: 84%

Open market

40%

Tiaiidi14%
BYSNOW12%
Lamosi10%
Amazon Basics10%
Turbo Bee8%
SETUP7%

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +37.3% search growth over the last 90 days.

Peak months: May, Jun · busiest ÷ quietest = 1.7×

Open Trend

Top 6 oz plastic cups search terms

6 oz plastic cups27K/yr +37.2%5.1% conv.
6oz plastic cups23K/yr +37.6%4.7% conv.
6 oz clear plastic cups6K/yr +26.9%6.1% conv.
6 ounce plastic cups4K/yr +54.3%4.7% conv.

All search terms

Top 6 oz plastic cups 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Tiaiidi 50 Pack Clear Cups with Lids 6 oz Plastic Disposable Cups with Flat Lids(No Hole) Crystal PET Dessert Party Cups for Smoothys Ice Cream Fruits Snack Cold Drinks

Tiaiidi$11.234.4★444 rev

BYSNOW 5 oz Clear Plastic Cups 100 Count Disposable Cups for Party PP Small Plastic Cups for Party Cold Coffee Soda Juice

BYSNOW$6.574.6★619 rev

Amazon Basics Small Disposable Clear Plastic Cups 9oz 100 Count

Amazon Basics$4.724.7★6,269 rev

Dealmed Professional 5 oz. Disposable Plastic Cups - 100% Recyclable for Healthcare Dental Veterinary & Food Service Use (Pack of 100)

Dealmed$6.944.7★6,587 rev

Lamosi 500 Pack 7 oz Plastic Cups Disposable Plastic Clear Cups Cold Drinking Water cups for Party Wedding Travel BBQ Picnic Event

Lamosi$20.674.7★168 rev

Newest

by launch date

Lamosi 100 Pack 5 oz Clear Plastic Cups Disposable Party Cups Small Clear Plastic Cocktail Tumblers for Mouthwash Bathroom Tasting Drinking

Lamosi$6.93706 rev

1mo ago

Lamosi 500 Pack 7 oz Plastic Cups Disposable Plastic Clear Cups Cold Drinking Water cups for Party Wedding Travel BBQ Picnic Event

Lamosi$20.67168 rev

8mo ago

Amazon Basics Mini Disposable Clear Plastic Cups 3oz 100 Count

Amazon Basics$5.36816 rev

8mo ago

BYSNOW 5 oz Clear Plastic Cups 100 Count Disposable Cups for Party PP Small Plastic Cups for Party Cold Coffee Soda Juice

BYSNOW$6.57619 rev

10mo ago

Jycnolm 50 Pack 6 oz Plastic Dessert Cups with Lids Small Plastic Yogurt Parfait Cups Mini Round Party Serving Cup for Pudding Fruit Cake Appetizer Dessert Shot Glasses

Jycnolm$12.84224 rev

1y ago

What buyers say about 6 oz plastic cups

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall19%

“Good Size”

Quality-Overall16%

“Excellent product”

Value For Money13%

“Great Value”

Strength10%

“Sturdy enough”

Advertised Vs Actual Product8%

“The description is 100% accurate”

Ease Of Use5%

“Easy to use”

Durability4%

“more durable than other ones I have ordered”

Color3%

“color : green”

Thickness2%

“The wall thickness of these cups is ample and they are a good weight and quality”

Oral Hygiene2%

“Perfect for brushing teeth”

What buyers complain about

Size-Overall23%

“Won't fit”

Strength15%

“Not very sturdy”

Dispensing Mechanism9%

“Do not fit in standard dispense”

Leak-Proof7%

“These leaked”

Thickness5%

“Thin and flimsy”

Quality-Overall4%

“Small and Cheap”

Ease Of Use4%

“we were not able to use them”

Adhesion/Stickiness4%

“Sticky”

Shape/Style3%

“Poor Shape”

Value For Money2%

“Not Worth the Money”

Top return reasons

Size-Overall75%

Value For Money6%

Advertised Vs Actual Product3%

Strength3%

Thin3%

Quality-Overall3%

Material Quality2%

Color1%

Leak-Proof1%

Functionality-Overall1%

Common questions

Is 6 oz plastic cups profitable to sell on Amazon United States?: The niche generates $66K/yr across 35 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +37.3%. Flapen's verdict: Worth a look (61/100).
How competitive is the 6 oz plastic cups niche?: 24 brands and 41 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 53% of demand.
What do buyers complain about in 6 oz plastic cups?: Top complaints mined from reviews: Size-Overall, Strength, Dispensing Mechanism. The return rate is 1.1%.
When does demand for 6 oz plastic cups peak?: Demand peaks in May–Jun; the busiest month runs 1.7× the quietest.
What does it cost to enter the 6 oz plastic cups niche?: Listings span $4.72–$37.13; the average listing price is $15.94 (sweet spot $15–$100). The average incumbent carries 1,654 reviews — the moat a new listing must climb.