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10 Best Long Extension Cords 2026 in the United States

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Our Top Picks

#1

Winner

Flat Plug Long Extension Cord 25 Ft, TESSAN Power Strip Surge Protector with 8 Outlets 3 USB Ports (1 USB C), 900J Protection Desktop Charging Station for Home, Office, Dorm Room Essentials

Rating
10.0
Chosen by1,187
Length
Plug Type
Number of Outlets

Most important from
13135 reviews

Length
The 25-foot length is perfect for running power across a room without hassle, ensuring it fits neatly behind furniture.
Plug Type
This surge protector is a game changer with its flat plug design, fitting perfectly behind furniture without sticking out awkwardly.
Number of Outlets
The eight AC outlets and three USB ports provide plenty of space for all devices, making it ideal for a home office or dorm room.
Safety Features
The 900J surge protection adds a layer of safety, giving peace of mind for protecting electronics.

The TESSAN Flat Plug Long Extension Cord is a versatile and practical option for those in need of an extended reach for their electronic devices. With a length of 25 feet, it enables users to access distant outlets comfortably, making it ideal for homes, offices, and dorm rooms. The ultra-thin flat head design allows it to fit snugly behind furniture and sit flush against walls, preventing it from causing obstructions or tripping hazards. Additionally, the flat cord can be run along walls or under carpets without forming a noticeable bulge, making cleaning easier and safer for families.

The power strip features 8 outlets and 3 USB ports (including 1 USB-C), accommodating multiple devices simultaneously. This extensive charging capability is particularly useful for busy workspaces or households with numerous gadgets. The USB-C port provides a fast charging option with up to 3A output, catering to modern devices like smartphones, tablets, and laptops.

Safety is a key focus with this product, offering 900-joule surge protection and multiple safety features, such as overload, short-circuit, and over-current protection. This ensures that your valuable electronics are protected from power surges and electrical faults. One minor drawback is that the product's 1.61-pound weight and relatively bulky dimensions (8.3 x 5.9 x 2 inches) might make it less portable for those who need a highly mobile solution. However, its robust construction suggests that most users find it reliable and effective for stationary use. In summary, the TESSAN Flat Plug Long Extension Cord is an excellent choice for those seeking a long, safe, and functional extension cord with ample outlets and USB charging options.

Rating
10.0
Chosen by1,187
Length
Plug Type
Number of Outlets

Most important from
13135 reviews

Length
The 25-foot length is perfect for running power across a room without hassle, ensuring it fits neatly behind furniture.
Plug Type
This surge protector is a game changer with its flat plug design, fitting perfectly behind furniture without sticking out awkwardly.
Number of Outlets
The eight AC outlets and three USB ports provide plenty of space for all devices, making it ideal for a home office or dorm room.
Safety Features
The 900J surge protection adds a layer of safety, giving peace of mind for protecting electronics.
#2

Ultra Thin Flat Plug Extension Cord 25 FT, TESSAN Surge Protector Power Strip with 4 AC Outlets 3 USB Ports, 900 Joules Protection, Multi Plug Charging Station for Home Office Dorm Room Essentials

Rating
9.1
Plug Type
Number of Outlets
Safety Features

Most important from
6584 reviews

Plug Type
The ultra-flat plug design allows the extension cord to sit flush against the wall, eliminating the need to move furniture and keeping spaces neat and uncluttered.
Number of Outlets
The compact design with USB-A and USB-C ports offers great convenience for charging multiple devices without extra adapters.
Safety Features
This surge protector reduces bulk at the outlet to less than half an inch, solving common issues with thick plugs that push furniture out of alignment.

The TESSAN Flat Plug Extension Cord offers a practical solution if you need to extend your reach to distant or hard-to-access outlets. With a 25-foot length, it provides ample distance for most home or office setups. Its flat plug design is a big plus, allowing it to fit neatly behind furniture or along walls without creating bumps, which reduces tripping hazards. The right-angle flat plug is also convenient in tight spaces.

This extension cord combines a surge protector and power strip in one, featuring 4 AC outlets and 3 USB ports (one USB-C and two USB-A), so you can charge multiple devices simultaneously, which is handy for modern electronics. The 900-joule surge protection helps safeguard your devices from power spikes, adding a layer of safety. The cord supports up to 1250W on the AC outlets, suitable for typical household electronics but may be limiting for heavier power tools or equipment. It is primarily designed for indoor use, so it wouldn’t be ideal for outdoor or rugged environments.

This extension cord is ideal for home, office, or dorm use where space-saving design, multiple outlet types, and basic surge protection are priorities.

Rating
9.1
Plug Type
Number of Outlets
Safety Features

Most important from
6584 reviews

Plug Type
The ultra-flat plug design allows the extension cord to sit flush against the wall, eliminating the need to move furniture and keeping spaces neat and uncluttered.
Number of Outlets
The compact design with USB-A and USB-C ports offers great convenience for charging multiple devices without extra adapters.
Safety Features
This surge protector reduces bulk at the outlet to less than half an inch, solving common issues with thick plugs that push furniture out of alignment.
#3

DEWENWILS Outdoor Extension Cord, 50ft Long Power Cord, 16 AWG 3 Prong Heavy Duty, ETL Listed, 2 Pack (Black)

Rating
8.5
Length
Indoor vs. Outdoor Use
Plug Type

Most important from
6179 reviews

Length
Works well for short-distance needs, such as connecting crockpots to outlets.
Indoor vs. Outdoor Use
Perfect length and well-made for outdoor use, performing flawlessly throughout the season.
Plug Type
The three-prong plug fits perfectly into a two-prong timer, adding to its versatility.

The DEWENWILS Outdoor Extension Cord is a versatile product ideal for both indoor and outdoor use, extending up to 50 feet in length. This makes it suitable for reaching distant outlets and navigating around furniture. The cord is constructed from 16 gauge (AWG) wire, which is robust enough for most household and light outdoor appliances. It has a 13-amp rating, supporting up to 1625 watts, making it compatible with a variety of devices such as lamps, computers, and patio lights.

Its weatherproof design, complete with a PVC jacket, ensures protection against moisture, abrasion, and sunlight, which is particularly useful for outdoor applications in various weather conditions. However, users should ensure that connections are not submerged in water to maintain safety. The three-prong plug enhances compatibility and safety, and the cord features reinforced blades to resist wear and tear.

The DEWENWILS extension cord is ETL listed, indicating it meets high safety standards. An added benefit is the cost-effective 2-pack offer, making it a practical purchase for multiple usage scenarios. Its relatively thicker 16 AWG wire may be less flexible compared to thinner gauge cords, and it offers a single outlet per cord, which might require additional power strips if more outlets are necessary. Nevertheless, it is generally well-regarded for its durability and performance.

Rating
8.5
Length
Indoor vs. Outdoor Use
Plug Type

Most important from
6179 reviews

Length
Works well for short-distance needs, such as connecting crockpots to outlets.
Indoor vs. Outdoor Use
Perfect length and well-made for outdoor use, performing flawlessly throughout the season.
Plug Type
The three-prong plug fits perfectly into a two-prong timer, adding to its versatility.

Buying Guide for the Best Long Extension Cords

Choosing the right long extension cord is crucial for ensuring safety and efficiency in powering your devices. Whether you need it for indoor or outdoor use, understanding the key specifications will help you make an informed decision. Here are the main factors to consider when selecting a long extension cord.
LengthThe length of an extension cord determines how far it can reach from the power source to your device. This is important because using a cord that is too short may require additional cords, which can be unsafe. Extension cords come in various lengths, typically ranging from 6 feet to 100 feet. For indoor use, a shorter cord (6-25 feet) is usually sufficient, while outdoor tasks may require longer cords (50-100 feet). Choose a length that comfortably reaches your devices without excessive slack.
Gauge (AWG)The gauge of an extension cord refers to the thickness of the wire inside it, measured in American Wire Gauge (AWG). This is important because a lower gauge number indicates a thicker wire, which can handle more electrical current. Common gauges for extension cords are 16, 14, and 12 AWG. For light-duty tasks like powering small appliances, a 16 AWG cord is adequate. For medium-duty tasks like running power tools, a 14 AWG cord is better. For heavy-duty tasks like operating large equipment, a 12 AWG cord is recommended. Choose the gauge based on the power requirements of your devices.
Amperage RatingThe amperage rating indicates the maximum amount of electrical current the extension cord can safely handle. This is important to prevent overheating and potential fire hazards. Extension cords typically have ratings of 10, 13, or 15 amps. Check the power requirements of your devices and ensure the cord's amperage rating meets or exceeds those needs. For example, if your device requires 10 amps, use a cord rated for at least 10 amps.
Indoor vs. Outdoor UseExtension cords are designed for either indoor or outdoor use, and this distinction is important for safety and durability. Indoor cords are usually lighter and less durable, while outdoor cords are made with tougher insulation to withstand weather conditions. Outdoor cords are often marked with a 'W' on the packaging. If you need a cord for outdoor use, ensure it is rated for outdoor conditions to prevent damage and ensure safety.
Plug TypeThe plug type of an extension cord can vary, with some having standard two-prong plugs and others having three-prong grounded plugs. This is important for compatibility with your devices and for safety. Three-prong plugs provide grounding, which is essential for preventing electrical shocks. If your devices have three-prong plugs, use a grounded extension cord. For devices with two-prong plugs, a standard two-prong cord will suffice.
Number of OutletsSome extension cords come with multiple outlets, allowing you to power several devices at once. This is important for convenience and reducing the need for multiple cords. If you need to power multiple devices, choose a cord with the appropriate number of outlets. However, be mindful not to exceed the cord's total amperage rating when using multiple devices simultaneously.
Safety FeaturesSafety features such as surge protection, built-in circuit breakers, and childproof covers are important for preventing electrical hazards. Surge protection helps protect your devices from power spikes, while circuit breakers can prevent overheating. Childproof covers are essential if you have young children. Consider these features based on your specific needs and environment to enhance safety.

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