Is Persian related to Arabic?

No. Persian is Indo-European — a distant relative of English, Greek and Hindi — while Arabic is Semitic, and their grammars have nothing in common. What they share is a script: Persian is written in an adapted Arabic alphabet with four extra letters, and Persian has borrowed a large vocabulary from Arabic over centuries. So a learner sees Arabic script and Arabic loanwords sitting on top of a grammar that works nothing like Arabic, which is a common source of confusion before starting.

How hard is the Persian script?

The letters themselves take a few weeks; the shapes change depending on position in the word, which adds practice rather than difficulty. The real cost is that short vowels are not written. As in Hebrew, that means the written form does not fully determine the word, and reading requires knowing the vocabulary already. It is the same two-stage problem: learn to read with the training wheels available in beginner materials, then learn again without them.

Is Persian the same as Farsi or Dari?

Farsi is simply the Persian word for Persian, so they name the same language — using "Farsi" in English is a habit rather than a distinction. Dari, in Afghanistan, and Tajik, in Tajikistan, are varieties of the same language with differences in vocabulary and pronunciation; Tajik is additionally written in Cyrillic. Standard Iranian Persian is what most materials teach and is understood across the region, so it is the sensible default unless your reason points somewhere specific.

Why is spoken Persian different from written Persian?

Because colloquial Tehrani speech has diverged from the formal written standard in pronunciation and in the forms of very common words, including several verbs and pronouns. The difference is systematic rather than random, and it affects the highest-frequency items in the language, which is what makes it disruptive. A learner taught only the written standard reads well and finds ordinary conversation harder than expected, and the correction is deliberate exposure to unscripted speech.

What makes Persian grammar easy?

It has dropped almost everything that makes its Indo-European relatives slow. There is no grammatical gender at all — one pronoun covers he, she and it. There are no cases. Verbs are overwhelmingly regular, with a small set of common exceptions, and there are no complicated agreement rules. Plurals are formed predictably. For a learner coming from German, Russian or Arabic, Persian grammar is a relief, and it is the reason the language sits at 1,100 hours rather than higher.

How long does it take to learn Persian?

The US Foreign Service Institute reaches professional working proficiency in Persian in about 1,100 class hours — the same band as Russian, Polish and Turkish, roughly twice Spanish. At an hour a day with a tutor, conversational Persian (B1) takes a little over two years. The grammar is among the simplest of any language in this band: no gender, no cases, regular verbs. The script, which omits short vowels, and a spoken form noticeably different from the written one are where the hours go.

FSI baseline: 1100 class hours
Difficulty band: hard
FSI category: Category III / Category IV

Persian sits in the Foreign Service Institute's third tier: 1,100 class hours to Speaking-3 / Reading-3 — the same band as Russian, Polish, Turkish and Hebrew, and roughly twice what Spanish takes.

The two standing warnings:

Those are classroom hours, not app minutes. Full-time small-group instruction with qualified teachers.

1,100 hours is professional proficiency — arguing a point in your field, reading a newspaper unaided.

The grammar is a relief and the script is not

Persian is Indo-European — a distant relative of English — and it has shed almost everything that makes its relatives expensive.

No grammatical gender. None at all: one pronoun covers he, she and it. No cases. Verbs are overwhelmingly regular, with a short list of common exceptions. Plurals are predictable. Word order is flexible with a default that is easy to learn.

If you have come from German, Russian or Arabic, Persian grammar is the easiest thing you have met in years.

All of the difficulty is in the writing system and in the gap between how Persian is written and how it is spoken.

Where the time actually goes

A script that leaves out the vowels

Persian uses an adapted Arabic alphabet with four extra letters. Letters change shape depending on their position in a word, which is practice rather than difficulty and adds a few weeks.

The real cost is the same one Hebrew has: short vowels are not written. The consonants are on the page and the vowels are supplied by a reader who already knows the word.

So you learn to read twice. Beginner materials print the vowel marks. Almost nothing written for adults does, and the second pass requires the vocabulary to already be in your head — which makes early reading a vocabulary bottleneck rather than a decoding one.

The Arabic layer, which is vocabulary and not grammar

Persian has borrowed heavily from Arabic over centuries, so a substantial share of the formal and literary vocabulary comes from a Semitic language while the grammar remains Indo-European.

For a learner this cuts both ways. Someone with Arabic recognises a great many words and none of the structure. Someone without Arabic simply has more vocabulary to learn, concentrated in the formal register.

Our model treats Persian and Arabic as unrelated, which is correct by descent, and it means no discount is applied for the shared vocabulary. The head start from Arabic is real and it is smaller than the shared script suggests.

Written standard against Tehrani speech

Colloquial Persian has diverged from the written standard in pronunciation and in the forms of very common words — including several everyday verbs and pronouns.

Because the differences land on the highest-frequency items, the effect on a learner is disproportionate: you can read comfortably and lose the thread of a conversation about nothing in particular.

Deliberate exposure to unscripted speech, early and alongside the textbook, is the only correction.

What each level actually costs

Goal	Method	Estimate
A2 — simple everyday exchanges	App, 20 min/day	around 549 hours, ~4.5 years
B1 — hold a conversation	Tutor, 1 hr/day, 5 days	around 578 hours, ~2.2 years
B2 — work, study, argue a point	Tutor, 1 hr/day, 5 days	around 843 hours, ~3.2 years
C1 — professional proficiency	Intensive class, FSI-style	1,100 hours, ~10 months full-time

Persian, Farsi, Dari and Tajik

Farsi is the Persian word for Persian; using it in English is a habit, not a distinction.

Dari in Afghanistan and Tajik in Tajikistan are varieties of the same language, differing in vocabulary and pronunciation. Tajik is additionally written in Cyrillic, which makes it a separate reading problem.

Standard Iranian Persian is what most materials teach and is understood across the region. Choose it unless your reason points somewhere specific.

What actually works

Get off vowelled text as early as you can stand it. The transition is the project, and delaying it produces a reader who cannot read anything real.
Learn colloquial forms of high-frequency words alongside the standard ones. They are a short list and they carry most of the listening difficulty.
Enjoy the grammar and do not be lulled by it. It is genuinely simple and it is not where the 1,100 hours are.
Practise the connected letter forms by writing, not just reading. Recognition and production diverge quickly in a cursive script.

How you study matters more than which language

The same target, the same hour a day, five different ways of spending it.

Hours to B2 in Persian, holding everything else equal. The slowest method that gets there takes 2× the fastest — a wider gap than the one between neighbouring FSI difficulty bands. The hatched bar never arrives at all, however many hours go into it.

Run this for your own pace

Common questions

Is Persian related to Arabic?: No. Persian is Indo-European — a distant relative of English, Greek and Hindi — while Arabic is Semitic, and their grammars have nothing in common. What they share is a script: Persian is written in an adapted Arabic alphabet with four extra letters, and Persian has borrowed a large vocabulary from Arabic over centuries. So a learner sees Arabic script and Arabic loanwords sitting on top of a grammar that works nothing like Arabic, which is a common source of confusion before starting.
How hard is the Persian script?: The letters themselves take a few weeks; the shapes change depending on position in the word, which adds practice rather than difficulty. The real cost is that short vowels are not written. As in Hebrew, that means the written form does not fully determine the word, and reading requires knowing the vocabulary already. It is the same two-stage problem: learn to read with the training wheels available in beginner materials, then learn again without them.
Is Persian the same as Farsi or Dari?: Farsi is simply the Persian word for Persian, so they name the same language — using "Farsi" in English is a habit rather than a distinction. Dari, in Afghanistan, and Tajik, in Tajikistan, are varieties of the same language with differences in vocabulary and pronunciation; Tajik is additionally written in Cyrillic. Standard Iranian Persian is what most materials teach and is understood across the region, so it is the sensible default unless your reason points somewhere specific.
Why is spoken Persian different from written Persian?: Because colloquial Tehrani speech has diverged from the formal written standard in pronunciation and in the forms of very common words, including several verbs and pronouns. The difference is systematic rather than random, and it affects the highest-frequency items in the language, which is what makes it disruptive. A learner taught only the written standard reads well and finds ordinary conversation harder than expected, and the correction is deliberate exposure to unscripted speech.
What makes Persian grammar easy?: It has dropped almost everything that makes its Indo-European relatives slow. There is no grammatical gender at all — one pronoun covers he, she and it. There are no cases. Verbs are overwhelmingly regular, with a small set of common exceptions, and there are no complicated agreement rules. Plurals are formed predictably. For a learner coming from German, Russian or Arabic, Persian grammar is a relief, and it is the reason the language sits at 1,100 hours rather than higher.

If you already speak one of these

Our estimate applies a reduction for each, and each has its own write-up.

Arabic — cuts roughly 15% off

Where to study Persian

Matched by the same rules the calculator uses, at a B1 target with no prior related language. The rules were written before any of these were added and the ranking code cannot read commission rates — a test rewrites every payout and checks the order does not move.

AnkiFree · Structured self-study course · up to C2earns us nothing
Anyone who needs to retain vocabulary — free, and better at spaced repetition than every paid app.
Not for: People who want a curriculum — Anki is a tool, not a course
Language ReactorFree · Structured self-study course · up to C1earns us nothing
Intermediate learners who want native input from video with dual subtitles, at no cost.
Not for: Beginners — unscripted native speech below A2 is noise, not input
Rocket Languagesabout $260 once · Structured self-study course · up to B2
Learners who want one structured course covering grammar explicitly, bought once rather than rented.
Not for: Anyone who wants live correction from a human — this is a recorded course
Pimsleurabout $150 once · Structured self-study course · up to B1
Learners who want to speak from the first lesson and can give it thirty focused minutes of audio a day, hands-free.
Not for: Anyone who wants to read or write the language — the method is almost entirely spoken

Your own target and budget change this list — run it for your case. Prices carry the date they were checked and go stale; confirm on the merchant's own site before paying.

Sources

Where the baseline figure on this page comes from. Everything applied on top of it is our own estimate.

Foreign Language Training — US Department of State, Foreign Service Institute
The class-hour bands every estimate on this site starts from, and the definition of the proficiency they lead to (ILR Speaking-3 / Reading-3).
FSI Language Difficulty Ranking — fsi-language-courses.org
Which languages sit in which band. The State Department publishes the categories as an image, so per-language assignment comes from independent reproductions that agree with each other and with the official hour bands.

By Kevin Fan. Native Mandarin speaker who learned English as a second language — the same pairing this site prices at 2,200 hours, done from the far side. Builds and maintains the estimate model and every page on it. Last reviewed 2026-08-08. How we work these numbers out, including which coefficients are our own estimates.