The Best 2 Prong To 3 Prong Adapter Japan of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best 2 Prong To 3 Prong Adapter Japan of 2022. Check our ranking below.

2,223 Reviews Scanned

Rank No. #1

Japan, Philippines Travel Adapter Plug by Ceptics - USA 3 Pin Polarized to 2 Prong Unpolarized - Type A (3 Pack) - Dual Inputs - Ultra Compact - Perfect for Cell Phones, Tablet, Camera Chargers (CT-6)

Connects up to 2 Devices: 1 Grounded Outlet (3-prong N. American plug), 1 Non-grounded outlet (2-prong N. American plug) and accepts polarized plugs (one prong is wider than the other); Commonly used in Japan, Philippines and N. America
Standard: Type A plug, NEMA 1-15. Non-Grounded 2-prong plug. Max. amps up to 10A. Max. voltage up to 250V
Ultra compact and light weight design - measures only 1.6" x 1.6" x 1.9" & 1.07 oz
Designed in the USA - simple, safe and easy to use adapter. CE Certified & ROHS Compliant
Lifetime Limited Warranty included. NOTE: These adapters do not convert voltage. The AC voltage in N. America is 120V so make sure that your electronics are compatible with worldwide voltage range 100-240V when using with these adapters abroad

Rank No. #2

2 Pack US to Japan Plug Adapter, 2 Prong to 3 Prong Outlet Adapter with 3 AC Outlets 3 USB Ports(1 USB C), Type A Travel Power Converter Plug Adaptor for USA to Japanese Canada Mexico Philippines Peru

【Multi Plug Outlet Extender】- Outlet converter 2 prong to 3 prong standard American outlets, 2 USB-A and 1 USB-C charging port, Max Capacity Up to 2500 Watt (max 250 Volt, 10 A); 3 USB Ports can charge up to 3.1A, allowing you charge 6 devices simultaneously. Ideal for cell phone, tablet, power bank and other electrical chargers; No need to carry extra adapter and power strip for your traveling, a small plug adapter can save your suitcase space.
【Japan Power Adapter】- Type A plug adapter can work in America for 3 prong to 2 prong adapter, it is also compatible in oversea such as Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica, Cuba, Guatemala, Guyana, Haiti, Liberia, Panama, Peru
【US to Japan plug adapter】- This USA to Japanese plug adapter is mini and compact size: 3.0*2.4*1.6in, plug converter has no surge protection, no cords, making the Argentina plug adapter fully cruise ship approved; The blue indicator let you know the power is on/off.
【USB C Fast Charge】- The USB Outlet Plug total output of 3 USB ports is 5V/3.1A. Built in smart technology, the multi plug outlet can auto-detect charged devices and deliver optimum charging speed up to 5V/2.4A (max) each port, USB-C up to 3A.( Please note The USB-C port is not Quick Charger 3.0, doesn't support any other devices which need 9~22V charging voltage.)
【Suitable for Any Occasions】One beat travel adapter is made of 1382℉ fireproof material, it is safe and reliable for any indoor place, especially for the bedroom, bathroom and hotel. It’s also perfect for the holidays where you need extra outlets inside.

SaleRank No. #3

2 Prong to 3 Prong Outlet Adapter, TESSAN US to Japan Travel Plug Adapter with 4 AC Outlets, Japanese Power Adaptor with 3 USB Ports (1 USB C), Type A Plug for USA to Canada Mexico Philippines China

3 Prong to 2 Prong Adapter for Home or Travel: This US to Japan plug adapter can work in America, you can also take this Japan power adapter when you travel to Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica
Japan 0utlet Adapter with USB: 2 USB A ports can charge up to 2.4A, this Japan plug adapter can detect charged devices and give you more charging options, suitable for cellphones, earphone, home, office, travel, hotel, college dorm room, etc
Multi Plug Outlets: This Japan adapters for travel can turn 1 Type A socket into 2 outlets and 2 USB ports, charge up to 4 devices at a time without blocking, the plug adapter 2 prong to 3 prong only occupies one socket on the wall panel and does not interfere with other plugs
Compact Size: Portable size allows this Japanese charger plug easily put in your pocket, effectively saving the space of your suitcase, backpack, no surge protection, no cords, making it fully 2 to 3 prong outlet adapter for cruise ship essentials
NOTE: This Japan travel plug adapter only works on 100V to 250V wide voltage devices. If you want to use your hair dryer, straightener or curling irons, they need to support wide voltage, or you may need a power voltage converter

Rank No. #4

2 Prong to 3 Prong Outlet Adapter, ETL Listed 3-2 Prong Adapter, Fire-Retardant (392℉) PBT Material, Heavy Duty Wall Plug Adapter for Old Homes, Travel to Japan, and Industrial Use, Gray 4-Pack

【Reliable and Certified Quality】This 3 prong to 2 prong adapter is an ETL-listed grounding plug adapter made with fire-retardant PBT material. Rated at 125V/15A with a max load of 1875W, it resists temperatures up to 392°F (200°C). Perfect three prong adapter plug for safely connecting power strips, kitchen appliances, and industrial tools. A heavy-duty 2-prong outlet adapter solution for wall outlet’s 3-prong needs.
【2-Prong to 3-Prong Outlet Adapter】Convert outdated two prong wall outlets to three prong with this adapter. Whether you're in an older home or office, this plug adapter (2 prong to 3 prong) allows you to use modern grounded electronics with traditional 2-prong sockets. A convenient wall outlet adapter solution when grounding isn’t available.
【Polarized for Safer Connections:】Each two prong to three prong adapter features a polarized plug—wide and narrow blades ensure proper alignment of hot and neutral wires. This minimizes risk and ensures secure connections, making it more reliable than a non-polarized outlet adapter. Flip the adapter if you find it unable to plug in, as some outlets were installed upside down.
【Compact, Portable & Travel-Ready】Weighing 0.6 oz and easy to stack, this adapter fits in any bag or travel case. Essential for travelers heading to countries like Japan, where wall outlets often only support 2 prong plugs. This plug adapter ensures compatibility for all your 3-prong devices abroad and home alike.
【Built-In Grounding Tab for Safety】Equipped with a metal grounding tab, this outlet adapter fits securely under the duplex wall outlet middle screw, adding an extra layer of protection by grounding the 3 prong adapter properly. Please note: Grounding is possible only when the 2-prong wall outlet is grounded.

SaleRank No. #5

2 Prong to 3 Prong Outlet Adapter, SUPERDANNY ETL Listed 3-2 Prong Adapter, Fire-Retardant (392℉) PBT Material, Heavy Duty Wall Plug Adapter for Old Homes, Travel to Japan, and Industrial Use (4 Pack)

【Reliable and Certified Quality】This SUPERDANNY 3 prong to 2 prong adapter is an ETL-listed grounding plug adapter made with fire-retardant PBT material. Rated at 125V/15A with a max load of 1875W, it resists temperatures up to 392°F (200°C). Perfect three prong adapter plug for safely connecting power strips, kitchen appliances, and industrial tools. A heavy-duty 2-prong outlet adapter solution for wall outlet’s 3-prong needs.
【2-Prong to 3-Prong Outlet Adapter】Convert outdated two prong wall outlets to three prong with this adapter. Whether you're in an older home or office, this plug adapter (2 prong to 3 prong) allows you to use modern grounded electronics with traditional 2-prong sockets. A convenient wall outlet adapter solution when grounding isn’t available.
【Polarized for Safer Connections:】Each two prong to three prong adapter features a polarized plug—wide and narrow blades ensure proper alignment of hot and neutral wires. This minimizes risk and ensures secure connections, making it more reliable than a non-polarized outlet adapter. Flip the adapter if you find it unable to plug in, as some outlets were installed upside down.
【Compact, Portable & Travel-Ready】Weighing 0.6 oz and easy to stack, this adapter fits in any bag or travel case. Essential for travelers heading to countries like Japan, where wall outlets often only support 2 prong plugs. This plug adapter ensures compatibility for all your 3-prong devices abroad and home alike.
【Built-In Grounding Tab for Safety】Equipped with a metal grounding tab, this outlet adapter fits securely under the duplex wall outlet middle screw, adding an extra layer of protection by grounding the 3 prong adapter properly. Please note: Grounding is possible only when the 2-prong wall outlet is grounded.

Rank No. #6

TESSAN 2 Prong to 3 Prong Adapter, Multi Plug Outlet Extender with 4 Outlets 3 USB Ports(1 USB C), Type A Travel for US to Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla

Adapter for Home or Travel: Type A Plug Adapter can work in America for 2-prong to 3-prong outlet adapter. You can also take this Japan power adapter travel to Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica, Cuba, Guatemala, Guyana, Haiti, Liberia, Panama, Peru
Wall Outlet Extender: This Japan plug adapter can turn 1 Type A socket into 4 outlets and 3 USB ports, charge up to 7 devices at a time without blocking; It only occupies one socket on the wall panel and does not interfere with other plugs, suitable for home, office, travel, hotel, college dorm room, etc
US to Japan Plug Adapter with USB-C: Dual USB A ports can charge up to 2.4A, the USB C port provide charging speed up to 3A; 2 types of USB ports can detect charged devices and give you more charging options; Ideal for cellphone, tablet, earphone, etc
Compact Size: With only 3.4 oz lightweight design, portable size allows this Japan outlet adapter easily put in your pocket, effectively saving the space of your suitcase, backpack and handbag; No surge protection, no cords, making it fully cruise ship essentials
NOTE: This USA to Japan plug adapter only works on 100V to 250V wide voltage devices. If you want to use your hair dryer, straightener or curling irons, they need to support wide voltage, or you may need a power voltage converter

Rank No. #7

US to Japan Plug Adapter - One Beat Japan Power Travel Adapter with 3 Outlets 3 USB Ports(2 USB C), 2 Prong to 3 Prong Outlet Adapter, Type A Plug Adapter for USA to Japanese Philippines China Canada

【2 to 3 Prong Outlet Adapter】- Multi plug outlet extender converter 2 prong to 3 prong standard American outlets, 1 USB-A and 2 USB-C charging port; 3 USB Ports can charge up to 3.1A, allowing you charge 6 devices simultaneously. Ideal for cell phone, tablet, power bank and other electrical chargers; No need to carry extra adapter and power strip for your traveling, a small plug adapter can save your suitcase space.
【Japan Power Adapter】- Type A plug adapter can work in America for 3 prong to 2 prong adapter, it is also compatible in oversea such as Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica, Cuba, Guatemala, Guyana, Haiti, Liberia, Panama, Peru
【US to Japan plug adapter】- This USA to Japanese plug adapter is mini and compact size: 3.0*2.4*1.6in, plug converter has no surge protection, no cords, making the Argentina plug adapter fully cruise ship approved; The blue indicator let you know the power is on/off.
【USB C Fast Charge】- The USB Outlet Plug total output of 3 USB ports is 5V/3.1A. Built in smart technology, the multi plug outlet can auto-detect charged devices and deliver optimum charging speed up to 5V/2.4A (max) each port, USB-C up to 3A.( Please note The USB-C port is not Quick Charger 3.0, doesn't support any other devices which need 9~22V charging voltage.)
【Suitable for Any Occasions】One beat travel adapter is made of 1382℉ fireproof material, it is safe and reliable for any indoor place, especially for the bedroom, bathroom and hotel. It’s also perfect for the holidays where you need extra outlets inside.

Rank No. #8

1 Pack US to Japan Plug Adapter, VINTAR Foldable Japan Travel Adapter with 2 Outlets and 3 USB Ports(2 USB C), 2 Prong to 3 Prong Outlet Adapter for USA to Japan China Canada Philippine, Type A

Japan Power Adapter: Type A plug adapter can work in America for 2 prong to 3 prong outlet adapter. It is also compatible in oversea such as Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica, Cuba, Guatemala, Guyana, Haiti, Jamaica, Lebanon, Liberia, Panama, Peru, Etc
Fast Charging Dual USB C Ports: The upgraded Type A charger equipped with 2 USB C and 1 USB A ports to meet more charging needs. The 5V3.4A USB C ports can charge up to 17W max, which is 50% faster than the other adapters. Ideal for charging iPhones, laptops, tablets and more. ( Please note The UCB C port is not Quick Charger 3.0, doesn't support any other devices which need 9V to 22V charging voltage)
Foldable and Compact Design: This US to Japan plug adapter is mini size: 2.9x1.9x1.7 in. Can be folded 90 degrees for better prong protection and easier portability to save space in your suitcase. It is suitable for any places such as hotels, offices, homes. No surge protection, No cords, making this Japan charger adapter fully cruise ship approved
Important Notes: This is NOT A VOLTAGE CONVERTER. This Japan outlet adapter is only compatible for 100V to 250V wide voltage device, If you want to use your hair dryer, straightener, electric toothbrush or razor, they must support 100V to 250V Dual Voltage, otherwise you may need a power voltage converter
Quality Assurance: Certified by CE and FCC, High quality shell material can maintain good heat dissipation and flame retardancy. Each 2 to 3 prong power adaptor is tested before shipment and has a 12 month warranty and friendly customer service. Any problem with it, please contact us

Rank No. #9

US to Japan Plug Adapter 2 Pack, TESSAN 2 Prong to 3 Prong Outlet Adapter with 4 Outlets 3 USB (1 USB-C), Outlet Adaptor US to Japan China Mexico Philippines Canada Peru Thailand Vietnam

Type A Plug Adapter: Japan adapters for travel works in Mexico, Canada, Philippines, China, Peru, Thailand, Colombia, Guatemala, Bolivia, Panama, Cuba, Puerto Rico, Haiti, Liberia, Bahamas, Barbados, etc
7 in 1 Japan Power Adapter: The japan charger adapter features 4 AC Outlet (1875W Max), 1 USB C (3A Max per port) and 2 USB A (2.4A Max); Japan outlet adapter can charge 7 devices simultaneously, reducing waiting time and no need to bring extra adapters
USB C 15W Speed Charging: The USB C of UK travel plug adapter output is 15W Max, quickly charging your phone, earphones and other devices; USA to Japan plug adapter also has 2 USB A port to meet the charging needs of various devices
Compact and Portable: Compact size 3.15 × 2.24 × 2.25 inches and lightweight 3.46 ounces; Japan converter adapter fits easily into your bag; Japan adapter is with 4 sided design for plugging in large adapters without blocking; No surge protection, suitable for cruise ship
Not a Voltage Converter: It is not a voltage converter; Please make sure your devices especially your hair dryer, straightener, hair curler, electric toothbrush support 100V to 250V Dual Voltage; If your device is 110V or 125V only, you will need a voltage converter

SaleRank No. #10

LENCENT 2 Prong to 3 Prong Outlet Adapter,Wall Plug Extender,Multiple Outlet Wall Plug with 3 AC Outlets,Non-Grounded Outlets Expander for Japan Travel Kitchen Office Bathroom Older House,2 Pack

Multi Outlet Wall Plug: This 2 prong outlet splitter can transform a 2 prong outlet into a 3 prong plug acceptable outlet, avoiding the need to replace your 2 prong outlet receptacles.The multi plug wall outlet accepts 3 bulky plugs at once without blocking the other outlets and keeping it simple while charging many devices at once. Supports audio speakers, game consoles, laptops, cell phones, cameras, lamps, shavers, TV, video etc
Flat Wall Outlet Extender: This 3 prong to 2 prong adapter With its 3 AC outlets in three different directions, it also allows you to power multiple devices from one plug at the same time without blocking(1875W Max in 15A). Our innovative side outlets make it perfect for hard-to-reach places, allowing cords to run sideways behind furniture or the couch effortlessly. Say goodbye to bulky power strips and enhance the elegance of your home
Suitable for Any Occasions: LENCENT 2 to 3 prong outlet adapter is made of 1382℉ fireproof material and certified by CE FCC is safe and reliable for any indoor place, keep less tangle of cords in the bedroom, bathroom, dorm, office and living room.It designed originally for standard US dual port outlets, because it neither blocks part of the bottom nor the top outlet when you use it. This power socket expander makes an awesome gift for friends or family
Compact and Reliable：LENCENT 2 prong outlet extender with super small size of 2.52*1.17*1.48 inches, which helps to save your precious luggage space.It fits snugly into the wall outlet without falling with grounded plug.It will be an excellent choice when you are on business or traveling in Japan
Wall Outlet Extender for Home or Travel: LENCENT plug extender can be used in America as 2 to 3 prong outlet adapter(15A, 125V). It is also compatible in oversea such as Japan, China, Philippines, Canada, Mexico, Thailand, Anguilla, Colombia, Cuba, Guyana, Haiti, Panama, Peru and more countries as a travel adapter. NOTE: It is NOT a voltage converter and will not convert voltage from 220V to 110V or vice versa. Please make sure your devices can support dual voltage 100V-240V before use

Last update on 2025-10-12 / Affiliate links / Images from Amazon Product Advertising API

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The Best 2 Prong To 3 Prong Adapter Japan of 2022 – Reviews & Buying Guide

How Do You Buy The Best 2 Prong To 3 Prong Adapter Japan?

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