Not really, unless you live alone and do one thing at a time. 5 Mbps runs one Full HD stream or one HD video call, but not both together. It's half of what the UK counts as a "decent" connection, and a twentieth of the US benchmark.
One HD stream, with no room to spare
Most big services set HD at exactly 5 Mbps: Netflix for Full HD, YouTube for 1080p, Disney+ for HD, the HBO Max HD minimum, and Prime Video HD.
That means a 5 Mbps line has no headroom. As a rule of thumb you want about 25% above what a service asks for: 5 × 1.25 = 6.25 Mbps for one Full HD stream. On 5 Mbps, expect the picture to drop to 720p whenever your speed dips or a phone starts updating apps. Netflix's 720p tier needs 3 Mbps, so playback usually continues, just less sharp.
Calls and streaming don't fit together
A 1080p Zoom call uses 3.0 Mbps down and 3.8 Mbps up. Add a Full HD stream in the next room and you need 3.0 + 5 = 8 Mbps of download. That's 3 Mbps more than you have, so either the call or the stream will stutter.
A 720p Zoom call is lighter at 1.2 Mbps each way. That fits alongside browsing, but still not alongside an HD stream.
The upload matters here too. A 5 Mbps download line often comes with a small upload, and Zoom's 1080p call needs 3.8 Mbps of it. Check the upload figure on your result, and see what counts as a good upload speed if it's low.
How 5 Mbps compares with official benchmarks
- UK: Ofcom defines a "decent" connection as at least 10 Mbit/s down and 1 Mbit/s up. If you can't get that, you may be able to request an upgrade under the broadband Universal Service Obligation.
- US: the FCC benchmark is 100 Mbps down and 20 Mbps up. At 5 Mbps you're well short of what the FCC treats as broadband.
Where 5 Mbps usually comes from
Long ADSL lines, rural 4G or LTE, and low satellite tiers are the usual suspects. Data caps can also land you here: Verizon says its Home Internet Lite plan drops to 3–10 Mbps after the monthly data allowance.
But a 5 Mbps result on a faster plan is usually Wi-Fi, not the line. Before you decide anything, test on a laptop plugged into the router with Ethernet. If the wired result is much higher, the Wi-Fi vs Ethernet guide will help. If both are slow, work through why your internet is slow in order.
Should you upgrade?
If 5 Mbps is genuinely your line and more than one person uses it, yes, if you can. Almost any other option is a big step:
- 10 Mbps roughly doubles what you can run: an HD stream plus a call.
- About 18 Mbps handles two Full HD streams or one 4K stream. Is 18 Mbps good? covers what that tier allows.
- Satellite or 5G home internet may beat a slow copper line. Starlink, for example, says users typically get 25–220 Mbps.
To work out how much you actually need, start with our guide to a good internet speed, then run the speed test at a few different times so you know what your line really delivers.