international converter
Worth a lookShows no brand lock-in (top 5 brands take 49% of clicks), but a small market ($71K/yr) keeps it on the watch list.
Brand share
Great49%top-5 brand share — no brand owns this niche
Competition
Great33%top-5 click share — an open shelf
Returns
Great1.7%return rate — above 5% kills the launch gate
Conversion
Good5.4%search→purchase rate — share of searches ending in a sale
Avg price
Okay$11.79avg listing price — sweet spot $15–$100
Growth
Okay+17.0%90-day search growth — must beat 0% to launch
Price range
Okay$4.82–$23.77cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad11,376.33avg incumbent reviews — the moat a new listing must climb
Market size
Bad$71K$71K/yr · 111K searches
According to Flapen's Amazon United States niche tracking, international converter is a $71K/yr Amazon United States market (111K searches/yr). The top 5 brands hold 49% of demand. Demand peaks in Nov. Verdict: Worth a look — 54/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
international converter market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $71K–$94K
- units × avg price
- Conversion rate
- 5.4%
- Avg BSR
- #45
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 96%
- Out of stock
- 1.4%
- Avg brand age
- 53 months
- Avg seller age
- 174 days
Competition & brand share
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.Brands
37 rising
Sellers
56
Top-5 brand share
49%
Top 20: 82%
Top-5 click share
33%
Top 20: 74%
Open market
46%
- Unidapt18%
- SZHAIYIJIN13%
- DENGWENQIANG9%
- TESSAN6%
- --4%
- Denlane4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +17.0% search growth over the last 90 days.Peak months: Nov · busiest ÷ quietest = 1.9×
Top international converter search terms
- adaptor52K/yr
- phone adapter39K/yr
- adaptors7K/yr
- adopter6K/yr
- unidapt universal travel power adapter5K/yr
- unidapt3K/yr
Top international converter 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
SZHAIYIJIN SD Card Reader for iPhone Memory Card Reader with USB Camera Adapter Plug and Play Trail Game Camera Viewer Supports SD and TF Card MicroSD Card Adapter for iPad No App Required
SZHAIYIJIN$9.254.4★13,565 rev
2 Pack USB C Charger Block Dual Port Type C Wall Charger Fast Charging 20W Power Adapter Cube for iPhone 14/14 Pro/14 Pro Max/14 Plus/13/12/11 XS/XR/X iPad Samsung More
DENGWENQIANG$6.794.6★21,679 rev
European Plug Adapter Unidapt US to UK Europe Power Strip for EU/UK/US with USB C and 4 USB Ports 3 AC Outlets Wall Mountable 5ft Extension Cord for Travel Cruise Ship Home
Unidapt$20.494.7★1,924 rev
Universal Travel Adapter for Europe and International Travel from USA Type C EU/Type G UK/Type I AU/Type A US 1 AC Outlet 1 USB-C and 4 USB-A Ports Unidapt Travel Plug Adapter
Unidapt$19.844.6★3,854 rev
USB C to 3.5mm Headphone Jack Adapter for iPhone17/ iPhone 16/16 Pro/15/15 Pro/Pro Max/Plus Type C Aux Audio Dongle Cable Cord Compatible with iPad Samsung Galaxy S23/S23/S22/S21 MacBook2 Pack
--$8.714.5★6,265 rev
Newest
by launch date
Denlane SD Card Reader for iPhone iPad USB C & Lightning Dual Interface Memory Card Reader Digital Camera Adapter to iPhone/MacBook/USBC Laptop for SD/TF/Sim Card Plug & Play Camera Accessories
Denlane$7.84764 rev
USB Wall Charger 4 Pack Dual Port Plug Adapter for Wall Outlet Charging Block USB Power Adapter for iPhone 14/13/12/11 Pro/Pro Max XS/XR/X Galaxy Pixel Moto and Android Phones (White)
YTFCYIKBG$6.161,784 rev
USB C SD Card Reader Type C SD Card Reader Supports SD and MicroSD Memory Card Adapters for iPhone 15 16/iPad/MacBook/Mac Trail Camera Viewer Plug and Play -2 Slots
LBSC$5.33626 rev
USB C SD Card Reader for iPhone iPad Lightning Dual Port SD Card Adapter Memory Card Readers for Digital Camera Adapters Support SD Micro SD USB3.0 Plug and Play
CULGC$9.892,337 rev
decqle Universal Travel Adapter International Travel Plug Adapter with 2 USB-C(PD 20W) 1 USB-A Ports All in One Portable Adaptor for USA UK EU AU 224+ Countries (White) US
decqle$10.09940 rev
Trending
90-day click momentumUSB C SD Card Reader Type C SD Card Reader Supports SD and MicroSD Memory Card Adapters for iPhone 15 16/iPad/MacBook/Mac Trail Camera Viewer Plug and Play -2 Slots
LBSC$5.334.4★
Denlane SD Card Reader for iPhone iPad USB C & Lightning Dual Interface Memory Card Reader Digital Camera Adapter to iPhone/MacBook/USBC Laptop for SD/TF/Sim Card Plug & Play Camera Accessories
Denlane$7.844.6★
decqle Universal Travel Adapter International Travel Plug Adapter with 2 USB-C(PD 20W) 1 USB-A Ports All in One Portable Adaptor for USA UK EU AU 224+ Countries (White) US
decqle$10.094.7★
4 Pack Universal Adapter Europe to US Plug Travel Adapters (White)
Romeda$7.274.6★
USB C to 3.5mm Headphone Jack Adapter for iPhone17/ iPhone 16/16 Pro/15/15 Pro/Pro Max/Plus Type C Aux Audio Dongle Cable Cord Compatible with iPad Samsung Galaxy S23/S23/S22/S21 MacBook2 Pack
--$8.714.5★
What buyers say about international converter
What buyers praise and complain about, mined from review topics.What buyers love
“Better than expected”
“Solid quality”
“Charge fast”
“Great buy for the money”
“Really handy”
“are compatible with all of them”
“Convenient for traveling”
“Nice ports”
“Easy to connect”
“Like the size”
What buyers complain about
“Didnt charge”
“DOESN'T WORK”
“Did not last”
“Poor Quality Control”
“in some areas are not compatible”
“Constantly Disconnects”
“Bad ports”
“Larger than expected”
“gets hot”
“The audio often cuts out”
Top return reasons
Common questions
- Is international converter profitable to sell on Amazon United States?
- The niche generates $71K/yr across 52 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +17.0%. Flapen's verdict: Worth a look (54/100).
- How competitive is the international converter niche?
- 37 brands and 56 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 49% of demand.
- What do buyers complain about in international converter?
- Top complaints mined from reviews: Charging, Functionality-Overall, Durability. The return rate is 1.7%.
- When does demand for international converter peak?
- Demand peaks in Nov; the busiest month runs 1.9× the quietest.
- What does it cost to enter the international converter niche?
- Listings span $4.82–$23.77; the average listing price is $11.79 (sweet spot $15–$100). The average incumbent carries 11,376 reviews — the moat a new listing must climb.