Two different things get called easy and they point at different languages. Structural closeness to English is one, and by that measure Afrikaans, Norwegian and Dutch are among the cheapest things an English speaker can learn. Supply of material and of people is the other, and by that measure they are not close to Spanish or French.
A learner who optimises for the first and ignores the second ends up with a language that is genuinely quick to build and has almost nothing to be built for, which is the specific failure this page exists to name.
Eight facts about what makes a language cheap
- easy for an English speaker only. Every claim on this page is relative to a starting point, and the same list for a Persian or Japanese speaker is different.
- shared vocabulary is the biggest saving, larger than grammar. An English speaker starts French with thousands of words already half known.
- Dutch, Norwegian and Swedish are the closest major languages to English structurally and are the usual answer to this question.
- Afrikaans has almost no verb conjugation. One form per verb across all persons and tenses, which removes an entire dimension of difficulty.
- Spanish and Italian have transparent spelling, so a written word tells you how to say it, and reading aloud works from week one.
- a familiar script saves months at the start, though it stops mattering entirely after that.
- grammar simplicity and vocabulary distance trade off. Indonesian has very simple grammar and almost no shared vocabulary, which puts it in the middle rather than at the easy end.
- easy does not mean fast to fluency. The early months are quicker; the distance from A2 to C1 is long in every language.
What makes a language cheap for an English speaker
Four things, and they are all facts about English rather than virtues of the other language. Shared vocabulary, which English has in bulk with French, Spanish and Italian because it borrowed for centuries. The same script, which removes the whole first fortnight. The absence of a feature English does not have, so no tone to acquire and no case endings to attach to every noun. And word order close enough that a sentence can be built by substitution before the grammar is understood.
Grammatical gender is the interesting case, because English lost it and most of its close relatives kept it. It is not hard to understand and it is expensive in a particular way: it has to be learned per word, forever, and no rule covers enough of the vocabulary to help.
Supply is the second axis and it is not correlated
What a learner needs is not the number of speakers. It is the amount of material at their level: graded readers, dubbed television, podcasts made for learners, tutors at an affordable rate, and other people learning the same thing to compare notes with.
Those follow the size of the learning market rather than the size of the language, and the two diverge sharply. Spanish and French have enormous learner economies. Norwegian and Afrikaans do not, and the difference shows up at exactly the point where a learner leaves the beginner materials and finds there is not much on the next shelf.
Where it stops: the closest language with nothing to read
The stall arrives at month five or six and it is a supply problem rather than a difficulty one. A learner who chose by structural closeness gets through the first materials quickly, which is the whole promise delivered, and then goes looking for the next thing.
What they find is a much thinner shelf: fewer graded readers, less dubbed television, a smaller pool of tutors, and a native-speaking population that mostly speaks excellent English and will switch to it. The language stops being cheap at exactly the moment the cheapness was supposed to pay.
Nothing about the choice was wrong on the information usually given, because the rankings that circulate measure the first axis and are silent on the second.
A rough measure of how much exists
The article count on a language's Wikipedia is free to look up, takes ten seconds, and is a usable proxy for how much written material exists in a language at all. It will not tell you about graded readers or dubbed television, and it separates the languages with a large written economy from the ones without by a wide enough margin to be informative.
It replaced assuming that a language with many speakers has a lot of material, which is a different claim and frequently false: several very large languages have small written and recorded economies, and several small ones have enormous ones.
Its limitation is what it counts. Encyclopaedia articles are not what a learner needs, so this measures the shape of the supply rather than its usefulness, and it should be checked against the one question that actually matters: how many hours of listening material exist at a level you could use next month.
What it looks like when it goes wrong
The recognisable failure is a learner who reaches a comfortable level in a structurally close language and has nobody to use it with, because everyone who speaks it also speaks English better than the learner speaks theirs.
The second is choosing by the published hours alone and discovering that the hours were the smaller half of the decision. A shorter total attached to no reason is not a bargain, and the arithmetic on that is in difficulty, usefulness and the honest reasons people pick.
Where the cost of a harder language actually falls, and why two languages with the same published total can feel completely different, is where the difficulty sits: script, sounds, or grammar.
The open question is whether a cheap second language can be run alongside something else, since the appeal of a close language is partly that it looks affordable to add, and adding is where the arithmetic gets complicated: when it works, and the pairs that interfere.