What internet speed do you need for IPTV? As a working rule, count on 10 Mbps for every Full HD stream and 25 Mbps for every 4K stream, and add them up for each stream playing at once in your home. They are planning figures, not a statement about your line. This article gives a table, explains why a quick line can still buffer, and compares Wi-Fi with an Ethernet cable.
In short
- Plan on roughly 3 Mbps for standard definition, 5 Mbps for HD, 10 Mbps for Full HD and 25 Mbps for 4K, per stream.
- Add the streams that play at the same time, and leave room for other use.
- A steady connection matters more than a headline speed.
- A cable to the TV or box is the most dependable upgrade.
The speed table
| Quality | Indicative speed per stream | Two streams | Three streams |
|---|---|---|---|
| Standard definition | 3 Mbps | 6 Mbps | 9 Mbps |
| HD (720p) | 5 Mbps | 10 Mbps | 15 Mbps |
| Full HD (1080p) | 10 Mbps | 20 Mbps | 30 Mbps |
| 4K | 25 Mbps | 50 Mbps | 75 Mbps |
These are planning figures. The real bit rate varies by channel and title, and other devices in the house use your line as well. If four people are streaming and one is on a video call, count all of them.
Test the speed you actually get
Run a speed test on the device, at the time you normally watch. Do it in the room where the TV is, not next to the router, because Wi-Fi speed drops with distance and walls. Take a few readings at different times of day. A line advertised as 100 Mbps that delivers 15 Mbps at 8 pm in the TV room is a 15 Mbps line for your purposes.
Why a quick line can still buffer
Speed is not the same as steadiness. A line can test well and still drop packets or vary, and video needs a steady supply more than a high peak. Common reasons include:
- Wi-Fi interference. Neighbours' networks, microwaves and thick walls.
- Busy evenings. Shared local connections slow when everyone is online.
- An older device. A stick or box with little memory struggles with big lists.
- Too many devices. Several streams and downloads share the same line.
- The service. Servers can be busy at peak times, which no home fix cures. Our freezing and buffering guide puts the checks in order.
Wi-Fi or Ethernet
| Wi-Fi | Ethernet cable | |
|---|---|---|
| Steadiness | Varies with distance, walls and interference | Steady |
| Set-up | None | A cable, or an adapter on a stick |
| Suits | 5 GHz, close to the router | Not applicable |
| Verdict | Fine for a nearby device in a quiet home | The more dependable choice for the main TV |
If you can run a cable to the TV or box, do. If you cannot, put the device close to the router, use the 5 GHz band and keep other heavy use off the network during viewing. A powerline adapter or a mesh node can help when a cable is not practical.
Planning for a household
Count the screens that might play at once, not the screens you own. A family with a 4K TV in the lounge and a Full HD stream on a tablet upstairs needs the 25 Mbps and 10 Mbps together, plus allowance for a phone call or a game download. Add a margin of about a third, because the real rate varies. If the total is close to what your line delivers at 8 pm, the evening is where the trouble will show.
Upload and latency
IPTV uses mostly download speed, so upload is rarely the limit. Latency, the time a message takes to reach the server and come back, matters for how quickly a channel starts. A very high latency, as on some satellite broadband or a congested mobile line, makes channels slow to load even when speed is adequate.
Mobile broadband and home routers
A 4G or 5G home router can carry video if the signal is good, but it shares capacity with everyone nearby, so evening speeds may drop. Check your data allowance as well; an hour of HD can use a gigabyte or more.
Reading your router's own numbers
Your router's admin page, or its app, shows the link speed and the signal strength of each connected device. A device reporting a weak signal or a low link speed is telling you where the trouble is before you run a single test. Moving the router out of a cupboard, off the floor and away from the microwave, and placing it centrally, often does more than changing provider. If your router is the basic one supplied with your broadband, a better one or a mesh set can extend coverage to the room where the TV sits.
Choosing a broadband package
If you are choosing a broadband package with IPTV in mind, look at the typical evening speed rather than the headline, and whether the line is fibre to the home or fibre to the cabinet. Ask a neighbour on the same provider how it performs at 8 pm. Upload speed and data caps rarely matter for IPTV, but a data cap does, so check that your package has no monthly data cap before you stream heavily.
HEVC and your device
Some streams use a compression format called HEVC. A device that decodes it in hardware plays 4K with less strain, and one that does not may stutter even with a good line. This is one reason a recent box or stick helps; see choosing an Android TV box.
What to do next
Measure the speed at your TV, compare it with the table, and choose Ethernet if you can. If your plan allows two streams at once (the plan page lists how many devices each plan allows), plan for both. The Standard or Premium page lists the differences, and the plans page has the prices.