Most of the hosting on this site does not meter transfer. Three plans do, deliberately: the economy range carries a monthly allowance of 10, 25 or 50 GB instead of an unmetered one, and that is the thing that makes it cheaper. It is the honest trade, and like every honest trade it is only a good one if you know which side of it you are on.
What a gigabyte of transfer actually is
Transfer is the total size of everything your site sends out: the HTML, the stylesheets, the scripts, the fonts, and above all the images. Add up the weight of one page, multiply by how many pages a visitor looks at, multiply by how many visitors you get, and you have the figure. Nothing else on the account contributes meaningfully.
A tidy brochure page with resized images is somewhere around 1 MB on a first visit and much less on the next, because the browser keeps the stylesheet and the fonts. So a thousand visits a month reading three pages each is a few gigabytes, not tens of them. A page that ships a 4 MB hero photograph and a slider of eight more is the same site at ten times the cost.
Working out your own number before you buy
If the site already exists somewhere, the hosting control panel it is on reports transfer for the last month and that figure is the answer. If it does not exist yet, estimate it: open the design in a browser, look at the total transferred for one page in the network panel, and multiply.
Then leave room. Not because the estimate is wrong, but because the things that move it are the things you do not plan: one post that gets picked up somewhere, a crawler that reads the whole catalogue, an image you forgot to resize on a page that turns out to be popular. A site that lands inside half its allowance in a normal month has a plan that will survive an unusual one.
What the allowance is not
It is not a storage limit. The economy plans carry 512 MB, 1 GB and 2 GB of NVMe, and those are separate figures: a site can sit comfortably inside its disk and still run out of transfer, and the reverse happens just as often.
It is also not a limit on how hard the site works. The processor and memory allowance on these plans is the same 2 cores you get on the standard range, and accounts are held apart by CloudLinux either way. A metered plan is not a slower plan. It is the same machines, the same cPanel, the same LiteSpeed, with transfer counted.
The month you go over
This is the part worth reading before you order rather than after. An allowance is enforced, which is what distinguishes it from a target. If your traffic is going to be lumpy, or you cannot predict it, the plans that do not meter transfer exist for exactly that reason and the difference in price is small. Paying a little more for an unmetered plan is cheaper than paying attention every month.
Two things reduce the figure more than anything else if you are close to the line. Resize images on upload, which usually halves it on its own. And put a content delivery network in front of the site, which serves the static files from its own network and never touches your allowance at all.
Who the economy plans are actually for
A personal site. A landing page. A small business site whose traffic is measured in hundreds rather than thousands. A staging copy of something else. Anything whose weight you control and whose audience you can predict. For those, paying for unmetered transfer you will never use is paying for a number on a page.
Who they are not for: a shop running a sale, anything serving video or large downloads, a site whose traffic you are hoping will grow quickly, or a project where the cost of being wrong once is higher than the saving every month. Web hosting starts one step up and does not count transfer at all.
