Your broadband provider promises you a certain speed. Your films keep buffering. Your video calls freeze mid-sentence. The question is: how fast is your internet actually running — right now, at this moment?
Finding out takes about ninety seconds and costs nothing. Here's how.
Here are the best free tools to measure your broadband speed, what the numbers mean, and what to do if you're not getting what you pay for.
What does "internet speed" actually mean?
When people talk about broadband speed, they usually mean two numbers: download speed and upload speed, measured in Mbps (megabits per second).
Download speed is how fast data comes to you — streaming a film, loading a webpage, receiving an email attachment. This is the number most people care about.
Upload speed is how fast data goes from you — sending photos, making a video call, uploading files to the cloud. Usually slower than download, and usually fine unless you video call frequently.
There's also latency (sometimes called "ping") — how quickly your connection responds. Low latency matters for video calls and online gaming; for general browsing it's less important.
The best free tools to test your speed
1. Speedtest by Ookla — the industry standard
The most widely used speed test in the world. Clean, simple, one big button. Measures download, upload, and ping. Used by ISPs and Ofcom themselves as a reference.
Link: speedtest.net — or search "Speedtest" in the App Store / Google Play for the mobile app.
2. Fast.com — made by Netflix
Even simpler: you visit the page and it starts testing immediately. Shows your download speed in large numbers. Netflix built this to help customers check whether their connection is fast enough for streaming — so it tests exactly what most people care about.
Link: fast.com
3. Broadband Speed Checker — UK-specific
Built specifically for the UK market. Tests your speed and also checks it against what your provider advertises — useful if you suspect you're being short-changed. It also flags whether your line qualifies for faster broadband available in your area.
Link: broadbandspeedchecker.co.uk
4. Ofcom's Speed Checker
Ofcom is the UK's communications regulator. Their checker is less flashy, but it's the tool Ofcom recommends if you're planning to raise a formal complaint with your provider — the results carry weight.
Link: checker.ofcom.org.uk
5. Google Speed Test — no download needed
Type "internet speed test" into Google and a speed test appears directly in the search results. Click Run Speed Test. It uses Measurement Lab (M-Lab) technology. No app, no website to visit — it's already in Google.
How to get an accurate result
A speed test measures your connection at that exact moment. For a fair result:
- Connect via cable if possible — plug your laptop directly into your router with an Ethernet cable. Wi-Fi introduces its own slowdowns that aren't your provider's fault.
- Pause other activity — if someone else in the house is streaming 4K video while you test, your result will be lower than your actual connection speed.
- Run it three times — take the average. One result can be misleading; three gives you a pattern.
- Test at different times of day — broadband slows in the evening (7–10pm) when everyone's home and online. If you're slow then but fast at 11am, that's a network congestion issue, not a fault.
What speeds should I be getting?
As a rough guide for UK broadband in 2025:
- Under 10 Mbps — struggling. HD streaming will buffer; video calls may drop. Time to complain or switch.
- 10–30 Mbps — adequate for one or two people. Standard streaming and browsing works fine.
- 30–100 Mbps — good. Multiple devices streaming simultaneously without issues.
- 100 Mbps+ — fast. Several people working from home at once, no problem.
- 900 Mbps+ (full fibre) — exceptionally fast. Future-proof for years.
What if my speed is slow?
Before calling your provider, try these yourself:
- Restart your router — unplug from the wall, wait 30 seconds, plug back in. Wait two minutes. This fixes the majority of slowdowns.
- Move closer to the router — Wi-Fi weakens through walls. Move to the same room and test again.
- Check for interference — microwaves and some cordless phones can disrupt Wi-Fi. Keep your router away from them.
- Test via cable — if speed is fine via cable but poor on Wi-Fi, you may need a Wi-Fi booster, not a new broadband package.
In a nutshell
- Test at speedtest.net, fast.com, or type "internet speed test" into Google — all free, all instant.
- Test via cable for the truest result; run three tests at different times of day for a fair picture.
- Consistently below what you pay for? Ofcom's checker gives you the evidence for a formal complaint — and the right to exit your contract.
What should I do right now?
- Run a speed test — visit speedtest.net and tap the big button. Write down the numbers.
- Compare to what you pay for — check your broadband contract or bill for the advertised speed.
- If there's a big gap — restart your router first. Still slow? Run the Ofcom checker and contact your provider with the result.
- Consistently slow in the evenings? — mention "peak-time congestion" to your provider. They're obliged to address it.
Your broadband bill goes out every month whether your connection performs or not. Two minutes and a free tool tells you exactly what you're getting — and whether it's time to make a phone call.
