41mestimated

41 minutes 9 seconds

At best 37 minutes 2 seconds, if you achieved your full upload speed with no overhead. That rarely happens in practice.

What this assumes

Assumes you achieve about 90% of your connection speed, which allows for network overhead and normal real-world conditions.
Assumes the connection is not shared with other heavy activity at the same time.
The server you are downloading from, or uploading to, may itself be the limiting factor.

Method version 2026-07-27.1. How we work this out.

Upload speed is usually the one that hurts

Most UK broadband is asymmetric: the upload speed is a fraction of the download speed. A typical fibre-to-the-cabinet package might give 67 Mbps down but only around 18 Mbps up, and older connections can be far lower than that.

That matters more than people expect. Cloud backups, sending large files, and the outgoing side of a video call all depend on upload. If calls break up while everything else seems fine, a saturated upload is a common cause.

Full fibre changes the picture

Full-fibre (FTTP) packages often offer much higher upload speeds, and some are symmetrical — the same speed in both directions. If you regularly upload large files, that difference is usually worth more than a higher download headline.

Before you upgrade

Check what is actually limiting you first. If you are uploading over Wi-Fi, the bottleneck may be the wireless link rather than the line. A wired test is the quickest way to tell the two apart.

It is also worth working out what speed your household actually needs before paying for more.