Is 3 Mbps good enough?
Grade 1 of 7: Catastrophic
Catastrophic. Everything buffers, including my patience.
3 Mbps download is grade 1 of 7 on the Speed Roast scale: Catastrophic. It struggles with HD, no 4K, and downloads a full game in 2 days.
What 3 Mbps can do
- HD streamingNo
HD will buffer. Standard definition is the realistic ceiling.
- 4K streamingNo
4K needs more than this. Expect the picture to drop to HD or below.
- Video callsNo
Calls will freeze and drop to audio. Turn the camera off.
- Online gamingNo
Multiplayer will be unreliable, and a game update is an overnight job.
- Working from homeNo
Email works. Anything with a video window does not.
Who it serves
One person, one device, and a lot of waiting. Not a household speed.
How long downloads take
| A song (5 MB) | 15 seconds |
| A one-hour HD episode (2 GB) | 1 hour 39 minutes |
| A film in 4K (15 GB) | 12 hours 21 minutes |
| A modern console game (60 GB) | 2 days |
Assumes the connection delivers about nine-tenths of 3 Mbps for the whole transfer, which a good line does and a busy one does not.
If your test said 3 Mbps
- A speed this low on a wired connection usually means a fault on the line, an ancient plan, or a router that has given up. Reboot the router first; it fixes more than it should.
- Test on a cable if you can. Wi-Fi routinely halves a connection, and a test over Wi-Fi measures the router as much as the line.
- Check the speed your plan promises. Providers advertise an "up to" or "average" figure; a result well below it, on a cable, is worth a complaint.
- Test at different times. Cable and older networks slow down in the evening when the neighbourhood is home.
- If fibre or cable is available at your address, almost any plan will be a large step up from here.
Questions people ask
Is 3 Mbps good for streaming?
Not really. HD will buffer at this speed and standard definition is the realistic limit.
Is 3 Mbps good for gaming?
No. Multiplayer will be unreliable and updates will take hours.
How many people can share 3 Mbps?
One person, one device, and a lot of waiting. Not a household speed.
How long does a 60 GB game take to download at 3 Mbps?
About 2 days, assuming the connection actually delivers 3 Mbps for the whole download.
The grades are mine, applied to download speed. Streaming figures use the services’ published minimums with a margin. See how I work.