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Broadband speeds made simple

Your speed estimates include three different things: your download speed range, your Stay Fast Guarantee and your upload speed range.

It’s important to know that the speed ranges we show are estimates. Your actual speed depends on your location, line, home wiring, Wi-fi connection and time of day.

How the Stay Fast Guarantee works

Our Ultrafast Fibre options are the only UK broadband packages to come with a download Stay Fast Guarantee of at least 100Mb. You’ll also get an upload speed guarantee of 10Mb.

We constantly check and optimise your speeds, but you can also test the speed to your hub in My BT. If it’s slower than it should be, you can claim £20.

At that point we’ll run checks to fix the problem. If we can’t get your Stay Fast download speed back to where it should be within 30 days of a problem being reported, you can leave your contract without penalty. This is because we’ve signed up to the Ofcom Voluntary Codes of Practice on Broadband Speeds.