Broadband speed guide for the UK
Choose the right speed for your household, understand the technology differences, and test your current connection before you switch.
Last updated: 30 Dec 2025
What speed do you actually need?
0–35 Mbps
- 1–2 people, lighter use
- HD streaming on one device
- Browsing, email, video calls
36–50 Mbps
- 2–3 people
- HD streaming on multiple devices
- Regular video calls and cloud docs
51–99 Mbps
- 3–5 people
- 4K streaming and online gaming
- Large file downloads/uploads
100 Mbps+
- Busy homes with many devices
- 4K streaming, gaming, home working
- Best served by full fibre or cable
How to test your current connection
- Use a wired/Ethernet device where possible to avoid Wi‑Fi variability.
- Pause large downloads and streams during the test.
- Run at least three tests at different times and average the results.
- Cross-check with more than one tool: HowFast.uk, UKSpeedTest.co.uk, or BroadbandBoost.co.uk.
- If Wi‑Fi is weak, test near the router and on 5 GHz where possible.
Technology differences
Full fibre (FTTP)
Fibre runs all the way to the home. Typically the most consistent speeds and lowest latency. Good for busy homes, 4K streaming, gaming and home working.
FTTC (part fibre)
Fibre to the street cabinet, then copper to the property. Speeds depend on distance and line quality. Suits lighter to moderate use.
Cable
Runs on a separate cable network with high download speeds and improving uploads. Strong choice where full fibre is not yet live.
4G or 5G home broadband
Uses mobile networks. Quick to set up and flexible. Performance varies with signal strength and congestion. Position the router well and check any data policies.
Checklist before you upgrade
- Confirm availability of full fibre or cable at your address.
- Match speed to simultaneous use and consider some headroom for peak times.
- Check contract length, annual price rise vs fixed price, and any setup or delivery fees.
- Ask about Wi‑Fi guarantees or pods for larger homes.