One hundred short answers, each to one specific question, each with a figure and the inputs behind it.
These are deliberately brief. If you asked how many metres are on a 1 kg spool of PLA, you want a number, the assumption it rests on, and one sentence about what would change it. Three paragraphs of preamble before the figure is a worse answer, not a more thorough one.
What is here
The questions cluster into six groups: what things cost, how much filament weighs and how far it goes, how long prints take, what settings to use, how much materials shrink, and which material to choose for a given job.
Every one of them is a question people actually type. None of them is a generated combination of two lists — the site has no material-by-printer grid, deliberately, because pages produced that way answer questions nobody asked and drag down the pages that answer real ones.
Every figure names its inputs
An answer like "about 330 metres" is only true for a stated filament diameter and a stated density. Both are given. Where the answer depends on your printer or your electricity rate, the page says which default it used and links to the calculator where you can put your own numbers in.
That matters most on the cost answers. A figure computed at one country's average electricity price can be double or half the truth somewhere else, and an answer that hides its rate is not really an answer.
When a quick answer is not enough
If the question is really "why", follow the link to the guide at the bottom of the answer. If the question is really "what about my specific part", the calculators will beat any published figure, because they can use your numbers instead of representative ones.
Why one hundred and not one thousand
Because the extra nine hundred would be combinations rather than questions. It is trivially easy to generate every material against every printer against every nozzle size and publish tens of thousands of pages; it is also the reliable way to build a site that answers nothing and ranks for nothing.
Each of these hundred was chosen because someone types it. That constraint is the whole editorial policy of this section.
How they connect to everything else
Every answer links to the calculator that can redo it with your inputs and, where the "why" matters, to the guide that explains the mechanism. The answer is the entry point, not the destination — if you arrived here from a search, the useful next click is usually one of those two.