1 Gbps
Top UK full-fibre headline speed widely available in 2026
≥ 50%
Customers who must hit the advertised average peak-time speed
≥ 25 Mbps
Ofcom's decent broadband Universal Service Obligation minimum
30 days
Right to exit if speed stays below the minimum guarantee
Run the broadband speed test
Click the button below to start the test. It measures your download speed, upload speed, ping and jitter live in your browser, in under 30 seconds. No personal details, no signup, no postcode, no router model and no app required.
Live speed test · free & no app
Test your real broadband speed now
One click measures your download, upload, ping and jitter against Cloudflare's global servers, live in your browser. It reads the path from this device, across your Wi-Fi, to one server, at this moment, so for a verdict on the line itself, run it wired and outside the 8pm to 10pm peak.
What this told you: your download came in at with a ping. That is the speed along this path right now, including your Wi-Fi and device, not yet a verdict on your line. See what your numbers mean ↓
The test downloads and uploads a few megabytes to a Cloudflare server to measure throughput, so it uses a small amount of your data allowance. Results vary with Wi-Fi, your device and the time of day. For the truest reading, plug in by ethernet and test off-peak.
For the most accurate reading, plug your device into the router with an ethernet cable rather than testing over Wi-Fi. Close streaming apps and cloud sync clients first. Repeat the test two or three times and at different times of day, including the 8pm to 10pm peak window, before drawing conclusions.
Speed test results explained
Bandwidth and speed are not the same thing, even though both are measured in Mbps. Bandwidth is the maximum capacity of your line. Speed is how quickly data actually moves across it. Think of bandwidth as the diameter of a water pipe and speed as how fast water flows through it at any moment.
With every test you get four numbers. Two are measured in megabits per second (Mbps), two in milliseconds (ms).
Download speed (Mbps)
How much data your line pulls down per second. This is the number providers advertise. It controls how quickly pages load, how smoothly Netflix and Disney+ stream, and how long a game update or large file takes to arrive. Higher is better.
Upload speed (Mbps)
How fast you can send data out: video calls, cloud backups, posting photos and videos, uploading to YouTube or working on a shared document. On FTTC, upload typically sits at 10-20 Mbps. On symmetrical FTTP from providers like Hyperoptic and Community Fibre, it matches the download figure. Higher is better.
Ping (ms)
The round-trip delay between your device and the test server. Vital for online gaming, video calls and remote desktop. Below 30 ms feels instant; above 100 ms causes visible lag. Lower is better.
Jitter (ms)
The variation in ping between successive packets. When a voice or video call breaks up despite a fast line, jitter is usually the cause. Anything under 10 ms is excellent. Lower is better.
What does my speed test result actually mean?
Run the test above and this fills in automatically, or enter your own numbers. Indicative diagnosis only; always retest wired and off-peak before complaining.
How and when did you test?
What this means
How it reads your input: a result counts as healthy when it reaches roughly 80% or more of the headline speed on a wired off-peak test. A Wi-Fi result is judged loosely because Wi-Fi naturally loses speed; a low wired off-peak result points at the line or connection type; a low result only at peak points at congestion. Always retest before acting on the Ofcom code.
What your result means by how you tested
The same number means very different things depending on how you ran the test. This is the diagnosis the raw figure cannot give you on its own, and it is what stops people upgrading a plan to fix a problem that was never the line.
| How you tested | What it means | The right next step |
|---|---|---|
| Wired, off-peak, near your plan speed | Your line is healthy | Nothing to fix on the line. If Wi-Fi feels slow, the problem is between the router and your device. |
| Wi-Fi result far below the wired result | Wi-Fi-limited, not line-limited | Move closer to the router, change the channel, or add a mesh node. Do not upgrade your plan. |
| Wired, fine by day, poor at 8 to 10pm | Peak-time congestion | Compare providers on their advertised average speed; the line is fine, the provider skimped on capacity. |
| Wired, off-peak, well below your plan | Line or connection-type limit | Likely FTTC copper capping the tier, or a fault. If below your minimum guarantee, invoke the Ofcom code. |
For a deeper breakdown of each metric, see our guide to download, upload and ping.
Typical UK broadband speeds in 2026
UK speeds have climbed sharply with Openreach, Virgin Media, CityFibre, Hyperoptic and Community Fibre rolling out full-fibre to most of the country. Here is what to expect from each common technology today.
| Technology | Typical download | Typical upload |
|---|---|---|
| ADSL (copper) | 8-17 Mbps | 1 Mbps |
| FTTC (part-fibre) | 35-80 Mbps | 10-20 Mbps |
| Virgin Media cable | 100 Mbps to 1 Gbps | 10-100 Mbps |
| FTTP entry / mid | 100-500 Mbps | 30-500 Mbps |
| FTTP top tier | 900 Mbps to 2 Gbps | 900 Mbps to 2 Gbps |
| 4G / 5G home broadband | 30-400 Mbps | 10-50 Mbps |
Hyperoptic and Virgin Media Gig2 offer up to 2 Gbps in eligible areas. If your test number sits well below the table for your technology, you may be on an older package, hit by Wi-Fi limitations, or eligible to upgrade to full-fibre. Check our roundup of the fastest broadband deals.
How much broadband speed do you actually need?
A bigger number is not automatically better. What matters is matching your speed to what your household actually does at the same time. A single 4K stream is the heaviest common demand, so the rule of thumb is to add up your simultaneous heavy activities, not chase the headline figure.
| Activity | Speed you need | What actually matters |
|---|---|---|
| Browsing, email, social media | 5 to 10 Mbps | Light and bursty; low latency matters more than raw speed. |
| HD video streaming (per stream) | ~5 Mbps | A single HD stream barely dents a modern line. |
| 4K / Ultra HD streaming (per stream) | ~25 Mbps | The biggest single demand; multiply by simultaneous streams. |
| Video calls / working from home | 3 to 10 Mbps | Needs steady upload and low ping, not big download numbers. |
| Online gaming | 5 to 15 Mbps | Tiny data, but punishes high ping; aim for ping under 50 ms. |
| Large uploads, cloud backup, 4K creators | 50+ Mbps up | The one job that genuinely rewards a top symmetric FTTP tier. |
Know your rights on broadband speed
UK consumer protections on broadband speed sit on two pillars: advertising rules from the Advertising Standards Authority (ASA) and a code of practice from Ofcom. Both have been in force for years and apply to every major provider.
ASA average-speed advertising
Since May 2018, providers can only advertise an "average download speed" that at least 50% of customers actually receive during peak hours (8pm to 10pm). This replaced the old "up to" headline, which only required 10% of customers to hit the figure. The "average speed" wording is now the long-established UK standard.
Ofcom Broadband Speeds Voluntary Code of Practice
The Ofcom code has been in force since 2019 and is signed by every major UK provider, including BT, EE, Plusnet, Sky, TalkTalk, Virgin Media, Vodafone and Zen Internet. The code requires them to:
- Give you a personalised speed estimate and a minimum guaranteed speed at the point of sale.
- Investigate complaints when your line consistently underperforms the minimum.
- Let you exit the contract penalty-free if the issue is not fixed within 30 days, including any bundled phone, TV or mobile services on the same agreement.
To invoke your exit right, run the speed test on a wired connection several times across at least three days, screenshot the results, then raise a formal complaint. Keep evidence in writing. If the provider does not resolve the issue inside 30 days, you can leave and switch.
Why run a speed test at all
A regular speed test is the only objective way to check that your provider is delivering what you pay for. Most households should test once a quarter, or any time the connection feels sluggish. Three situations make a test particularly useful:
- Just signed up: verify within the first 14 days that the actual speed matches the personalised estimate you received at the point of sale.
- Working from home: Teams and Zoom calls glitch, file uploads stall, or VPNs feel slow. Test wired and over Wi-Fi to isolate the bottleneck.
- Heavy streaming or gaming: buffering during 4K streams or high ping in online matches usually points to a Wi-Fi or peak-time contention issue rather than the headline line speed.
Once you have your numbers, compare them to your provider's advertised average and your personal minimum guarantee. If the gap is large and persistent, you have leverage. See our guide to the fastest broadband deals and our hub of cheapest broadband deals.
Alternative speed test tools
Our tool above runs in your browser against Cloudflare's global network, so it is fast and provider-neutral. If you want a second opinion or a different visualisation, three other UK speed tests are worth knowing.
Think Broadband speed test
Think Broadband displays your result as a clear graph and stores recent tests for comparison. It is widely cited by Ofcom and consumer reports, but the test takes longer to run than most rivals.
Plusnet speed test
Plusnet offers a simple speed test on its support pages. It is trusted by Plusnet customers and runs against UK servers, though the layout makes the numbers slightly less easy to interpret than a dedicated tool.
Vodafone speed test
Vodafone runs its own speed test for broadband customers, tied to a money-back guarantee if speeds fall below a stated threshold. The test is provider-specific, so it cannot benchmark you against the rest of the market, but it is the canonical evidence for a Vodafone speed claim.
Whichever tool you choose, the rule is the same: test on ethernet, repeat across the week, and compare against the personalised minimum guaranteed speed in your contract paperwork.
PSTN switch-off: does it affect your speed test?
Openreach is retiring the copper Public Switched Telephone Network by 31 January 2027, migrating every UK landline to Digital Voice or VoIP over your broadband router. The switch-off is about voice service, not data, so your broadband speed test runs identically before and after the migration.
In practice, most households see speeds improve through this period because the migration usually goes hand in hand with an Openreach FTTP rollout in the area. If you are still on ADSL or FTTC and your test results disappoint, ask your provider whether full-fibre is now available at your postcode. Background on the network is covered in our guides to Openreach and fibre vs cable.
Frequently asked questions
For a single user streaming and browsing, anything above 30-50 Mbps download feels fast. For a family of four streaming 4K, gaming and working from home, target 150-300 Mbps on FTTP. Power users with multiple 4K streams, large cloud backups or regular video editing benefit from 500 Mbps to 1 Gbps full-fibre.
The advertised "average speed" is what at least 50% of customers receive during peak hours (8pm to 10pm). Distance from the cabinet on FTTC, Wi-Fi interference, an older router, a wireless test instead of an ethernet test, congested servers and background app updates all reduce the figure you see. Always retest on a wired connection before complaining.
Ping is the round-trip delay between your device and the game server, measured in milliseconds. Below 30 ms feels instant and is ideal for competitive shooters. 30 to 60 ms is fine for most games. Above 100 ms you will notice lag, missed shots and rubber-banding. Jitter (variation in ping) matters as much as the raw number.
Mbps is megabits per second, used to measure broadband line speed. MBps (capital B) is megabytes per second, used for file sizes. There are 8 bits in a byte, so a 100 Mbps line delivers around 12.5 MBps in real-world downloads. If a 1 GB file takes about 80 seconds to download, your line is running close to 100 Mbps.
Yes. Under the Ofcom Broadband Speeds Voluntary Code of Practice, signed by every major UK provider, you can exit your contract without penalty if your speed stays below the minimum guaranteed level given at sign-up and the provider fails to fix it within 30 days. Run the test on a wired connection at several times of day and keep screenshots as evidence.
No. The PSTN copper switch-off on 31 January 2027 only retires the traditional voice network. Your broadband speed test runs over IP and works identically on FTTC, FTTP, cable and Digital Voice / VoIP lines. If anything, the migration to full-fibre that surrounds the switch-off usually improves the numbers you see.
Next steps
If your test results are below par, the next step depends on the cause. A slow Wi-Fi figure but fast ethernet test points to a router or interference problem. Slow ethernet on FTTC may mean you are eligible for an FTTP upgrade. Slow ethernet that breaches your minimum guarantee is grounds for a formal complaint and, ultimately, a penalty-free exit.
- Download, upload and ping explained.
- Fibre vs cable: which is faster?
- What is Openreach and how does it work?
- Cheapest broadband deals in the UK.
- Fastest broadband deals in the UK.
- Selectra UK TV & broadband hub.
Guide reviewed in September 2026.