HDMI cables have limitations on how far they can reach, so what if you want to extend them farther? There are multiple solutions to extend an HDMI cable to connect them across your house or even farther!
This article will discuss extending HDMI cables and the limitations of standard HDMI cables. Afterward, you'll be able to connect your displays wherever and however you want, without being limited.
How to Extend an HDMI Cable
The primary way to extend an HDMI cable is to either use an HDMI repeater, fiber optic HDMI cable, or extenders. Each solution has its limits, so it's best to pick the best type for your situation.
For example, if you need to extend an HDMI cable across a room, an HDMI repeater would be good enough. If you wanted to extend the connection from your top floor to the basement, then you'd use one of the types of HDMI extenders.
Below, I list the recommended ranges and devices and more details about each solution.
- Short-range extension: HDMI repeater
. - Medium-range extension: Fiber optic HDMI cable or HDMI over Ethernet extender.
- Long-range extension: HDMI over fiber extender.
HDMI Repeater
HDMI repeaters are best for shorter ranges but can still go up to 60 to 100 ft for 4K resolutions. A repeater is best for going from one room to another and isn't recommended for in-wall installations.
An HDMI repeater extends the connection for shorter runs by connecting two HDMI cables and amplifies the signals for better transmission.
Determining the max length when using a repeater depends on the HDMI repeater and the HDMI cable type, but I give the average ranges below. Remember that HDMI repeaters are directional, so be sure to use the device's correct input/
| Resolution | Length |
|---|---|
| 4K @ 60 Hz | 60–100 ft (18–30 m) |
| 4K @ 30 Hz | 100–130 ft (30–40 m) |
| 1080p @ 60 Hz | 135–195 ft (40–60 m) |
To be safe, assume a repeater can reach only the shorter end of those ranges.
- I recommend the JerGO HDMI 2.0 Repeater on Amazon
- Extends up to 100 ft for 4K @ 60 Hz.
- Supports 6.0 Gb/s bandwidth with 3D transmission.
Fiber Optic HDMI Cable
Fiber optic HDMI cables can reach similar distances as HDMI repeaters, but it's a more compact and cleaner solution. No extra devices are needed, just the cable.
Fiber optic HDMI cables are like standard HDMI cables but made with optical fiber inside the cable and meant for farther distances up to 164 ft (50 m) for 4K @ 60 Hz.
These cables aren't meant to be used with an extender, repeater, or switch and should be used alone. They also must be installed in the correct direction, with the output/
Learn more about fiber optic HDMI cables in my article: What Is a Fiber Optic HDMI Cable and Is It Worth Getting?.
- I recommend the ATZEBE Fiber Optic HDMI Cable on Amazon
- Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10 and Dolby Vision.
- Comes in lengths ranging from 6 to 164 ft (2 to 50 meters).
- Supports ARC (Audio Return Channel).
HDMI Over Ethernet Extender
HDMI over Ethernet extenders can extend an HDMI connection similar to a repeater or fiber optic HDMI cable, but this solution is better for in-wall installations.
For example, if you want to extend the connection from upstairs to the basement, you'd run an Ethernet cable through the walls then put the extender devices at each end of the cable close to your display. Then run a standard HDMI cable from the extender to the display. If you are using this for outdoor use, be sure to use an Ethernet cable rated for using outdoors.
The HDMI over Ethernet extender is similar to an HDMI over fiber optic extender but uses an Ethernet cable for a shorter extension.
An HDMI over Ethernet extender can extend the connection up to 130 ft (40 m) for 4K @ 60 Hz or 230 ft (70 m) for 1080p.
Learn more about HDMI over Ethernet in my article: HDMI Over Ethernet - How to Extend HDMI With Cat 5e/6a.
I recommend the AV Access HDMI 2.0 Over Ethernet on Amazon
Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10.
Supports ARC (Audio Return Channel).
To go along with the HDMI over Ethernet extender, I recommend the Cable Matters Snagless Long Shielded Cat6A Ethernet Cable on Amazon
HDMI Over Fiber Extender
HDMI over fiber extenders are best for in-wall installations or for extending the connection a lot farther than the other solutions can go.
If you wanted to extend from the top floor of a building or to another house, you could run the cable through the walls or underground. Then connect the extender devices on each end of the cable and a standard HDMI cable from the device to your display. If you are using this for outdoor use, be sure to use an optical fiber cable that's rated for using outdoors.
An HDMI over Fiber extender uses an optical fiber cable to transmit the data to reach a much farther distance. You could use an HDMI over Fiber extender to extend the connection up 1,000 to 3,300 ft (300 to 1000 meters) for 4K @ 60 Hz.
Learn more about HDMI over fiber in my article: HDMI Over Fiber - How to Extend HDMI With Fiber-Optic Cable.
I recommend the AV Access Fiber Optic HDMI 2.0 Extender on Amazon
Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10.
Supports multi-channel PCM, Dolby, and DTS HD audio supported up to 7.1.
Supports bi-directional IR pass-through.
I also recommend the Cable Matters Multimode Duplex OM3 Fiber Cable on Amazon to go along with the HDMI over Fiber extender (for indoor use).
Max HDMI Cable Length
You might not need to extend an HDMI cable if one will already reach where you want.
Each type of HDMI cable has a limitation on how far it can reach. There's no official "max" length specified in HDMI standards, but there is a practical limitation based on the materials used and the bandwidth requirements.
Most passive copper HDMI cables reliably reach around 10 to 25 ft (3 to 7.5 m) depending on the HDMI version and resolution. Newer HDMI 2.1 cables supporting 48Gbps typically max out at 10 to 15 ft (3 to 4.5 m), while older HDMI 2.0 cables can reach 15 to 25 ft (4.5 to 7.5 m). HDMI cables made with fiber optic technology can reach much farther. On average, active optical HDMI cables can extend from 50 to 300 ft (15 to 90 m) or more.
Below are the three types of copper HDMI cables with their average length limits and resolutions they can handle at their max cable length:
| Type | Max Cable Length | Speed | Supported Resolutions |
|---|---|---|---|
| Standard HDMI | 49 ft (15 m) | < 10 Gb/s | 720p 60 Hz | 1080i 60 Hz |
| High Speed HDMI | 15–25 ft (5–7.5 m) | 18 Gb/s | 1080p 60 Hz | 4K 30 Hz |
| Ultra High Speed HDMI | 10–15 ft (3–5 m) | 48 Gb/s | 4K | 5K | 8K | 10K 120 Hz |
Why HDMI Cables Have a Max Length
Most HDMI cables are made of copper, which limits the cable's length because the signal loses strength the farther it travels. Signal loss can occur with cables made of other materials as well. This signal loss (called attenuation) is measured in decibels per distance. The greater the distance, the more signal loss occurs.
Higher bandwidth requirements also reduce maximum cable length. HDMI 2.1 cables supporting 48Gbps (for 4K at 120Hz or 8K at 60Hz) experience more attenuation than older HDMI 2.0 cables. The recently released HDMI 2.2 specification in June 2025 doubles the bandwidth to 96Gbps, which will require even more careful cable design for longer runs.
If an HDMI cable is too long, the signal level may not be high enough due to excessive attenuation, resulting in visual artifacts, audio dropouts, or complete signal loss. For longer distances, an HDMI extender, repeater, or active optical cable is needed. Otherwise, a shorter HDMI cable should be used.
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