# Esperanto vs Spanish and English: which is easier?

Source: https://esperantopedia.org/about/esperanto-vs-spanish-english/
Language: en
Updated: 2026-10-11

> Esperanto verbs have one form for every person; a Spanish verb has about 50. Compare spelling, grammar, shared words, study time and when to pick each.

**Esperanto is easier than Spanish and English in spelling, grammar and word building, but far fewer people speak it.** It has one sound per letter, no irregular verbs and one verb form for every person. A Spanish verb has about 50 forms, and English spelling follows few rules.

How much time this saves an adult has not been measured well. The evidence is a few old school experiments and a 2018 review of studies with children. Spanish has about 560–635 million speakers and English about 1.5 billion; Esperanto has between 60,000 and 2 million.

## How do Esperanto, Spanish and English compare?

### Sounds and spelling

| | Esperanto | Spanish | English |
|---|---|---|---|
| Letters | 28 (5 vowels, 23 consonants) | 27 | 26 |
| Spelling | One letter, one sound; no silent letters | Mostly regular; *h* is silent, *b* and *v* sound the same, *c* and *g* change before *e* and *i* | Irregular: 26 letters for 24–27 consonants and 13–25 vowels; *ough* has at least ten pronunciations |
| Stress | Always on the second-to-last vowel | Second-to-last syllable in about 80% of words; accent mark for exceptions | Not predictable; must be learned for each word |

### Grammar

| | Esperanto | Spanish | English |
|---|---|---|---|
| Grammatical gender | None; *-in-* marks female: *patro* – *patrino* | Two genders, every noun | None; only *he*, *she*, *it* |
| Articles | *la* only; no "a" | *el, la, los, las*; *un, una, unos, unas* | *the*; *a* or *an* |
| Plural | Always *-j*: *hundoj* | *-s* or *-es* | *-s* or *-es*, plus irregular: *feet*, *sheep* |
| Adjectives | Agree in number and case: *grandajn hundojn* | Agree in gender and number | No agreement |
| Object case | Accusative *-n* | None on nouns | Only on pronouns (*I* – *me*) |
| Verb forms | 6 for every verb: *esti, estas, estis, estos, estus, estu*, plus participles | About 50 simple forms; *ser* has 53 | 4–5 for a regular verb; *be* has 8 |
| Irregular verbs | None | Many, including *ser*, *ir*, *tener* | Many, including *be*, *go*, *have* |

Spanish has 16 verb tenses, 8 simple and 8 compound, and each simple tense has separate forms for person and number. Counting every simple form in the standard tables, we get 51 different forms for the regular verb *hablar* and 53 for *ser* (Wiktionary); leaving out the rare future subjunctive gives 46 and 48. Esperanto's single form per tense is the biggest difference. See [Esperanto verbs](https://esperantopedia.org/grammar/verbs/).

### Word building and speakers

| | Esperanto | Spanish | English |
|---|---|---|---|
| Word building | 10 prefixes and 31 suffixes, each with one fixed meaning | Suffixes such as *-ito*, *-ción*, *-mente*; less systematic | Prefixes and suffixes from Germanic, Latin and Greek |
| Total speakers | 60,000–2 million (estimates) | 561 million (Ethnologue, 2026) to 635 million (Instituto Cervantes, 2025) | About 1.5 billion (Ethnologue) |
| Native speakers | 1,000–2,000 | 487–520 million | 372–380 million |
| Learners or second-language speakers | 2.8 million course starters (Duolingo, 2020) | 24 million active learners | About 1.1 billion second-language speakers |

Esperanto numbers are estimates: see [how many people speak Esperanto](https://esperantopedia.org/about/speakers/). Spanish is an official language in 21 countries.

The prefix *mal-* shows the difference in word building. It reverses any adjective: *bona* – *malbona*, *varma* – *malvarma*, *alta* – *malalta*. Spanish and English use separate words: *bueno* – *malo*, *caliente* – *frío*, *alto* – *bajo*; "good" – "bad", "hot" – "cold", "high" – "low".

## What does the same sentence look like in all three?

| English | Esperanto | Spanish | What differs |
|---|---|---|---|
| I have two big dogs. | *Mi havas du grandajn hundojn.* | *Tengo dos perros grandes.* | Esperanto marks plural and object on the adjective too; Spanish drops *yo* and puts the adjective after the noun |
| Yesterday I worked, today I work, tomorrow I will work. | *Hieraŭ mi laboris, hodiaŭ mi laboras, morgaŭ mi laboros.* | *Ayer trabajé, hoy trabajo, mañana trabajaré.* | Esperanto changes the ending for tense only; Spanish also changes it for person |
| We were tired but happy. | *Ni estis lacaj, sed feliĉaj.* | *Estábamos cansados, pero felices.* | Spanish must choose *estar* or *ser* and match gender (*cansadas* for women) |
| Do you speak Esperanto? No, but I am learning. | *Ĉu vi parolas Esperanton? Ne, sed mi lernas.* | *¿Hablas esperanto? No, pero estoy aprendiendo.* | Esperanto turns any statement into a question with *ĉu*; English needs "do" |

## How many words does Esperanto share with Spanish and English?

Most common Esperanto roots come from Romance languages, but Spanish is rarely the named source. In our analysis of the 1,000 most frequent roots (843 with etymology data; 7 October 2026), 69% are Romance and 24% Germanic. Full tables are on [what Esperanto is based on](https://esperantopedia.org/about/word-origins/).

| Source named in Wiktionary | Share of the 843 common roots |
|---|---|
| Any Romance language | 82% (693 roots) |
| Latin | 45% |
| French | 42% |
| Italian | 28% |
| Any Germanic language | 37% (310 roots) |
| English | 25% (210 roots) |
| German | 21% |
| Spanish | 3.6% (30 roots) |

Shares add up to more than 100%, because one root can name several languages. In running text, 74% of root occurrences have Romance sources and 21% Germanic ones.

These figures show **origin, not recognisability**. We found no published measurement of how many Esperanto words a Spanish or English speaker recognises, so we give no percentage. A few examples show the pattern:

| Esperanto | Spanish | English | Source in Wiktionary |
|---|---|---|---|
| *libro* | *libro* | book | French *livre*, Italian and Spanish *libro*, Latin *liber* |
| *amiko* | *amigo* | friend | Latin *amicus* |
| *akvo* | *agua* | water | Italian *acqua*, Latin *aqua* |
| *familio* | *familia* | family | German, French, Italian and English |
| *birdo* | *pájaro* | bird | English *bird* |
| *vintro* | *invierno* | winter | German *Winter*, English *winter* |
| *hundo* | *perro* | dog | German *Hund* |
| *manĝi* | *comer* | to eat | French *manger*, Italian *mangiare* |
| *fenestro* | *ventana* | window | Latin *fenestra* |

A Spanish speaker recognises *libro*, *amiko* and *akvo* at sight, an English speaker *birdo* and *vintro*. Neither recognises *hundo* or *manĝi* without learning them. The 1,000 most frequent words make up 78.4% of all words in a large collection of everyday Esperanto sentences ([common words](https://esperantopedia.org/learn/common-words/)).

## Is Esperanto faster to learn than Spanish or English?

Probably, but only indirect evidence exists. The US Foreign Service Institute puts Spanish in Category I, the easiest group for English speakers, and lists 24–30 weeks of full-time study (552–690 class hours in its current table; older versions said 600–750) for professional proficiency in speaking and reading. The Defense Language Institute teaches seven hours a day and, as of 2022, 36 weeks for Category I, which includes Spanish. Both are intensive courses for government staff, so part-time learners usually need much longer.

For Esperanto, no comparable measure exists. Three studies come closest:

- **Thorndike, Columbia University (1925–1931).** Reported by later summaries: an average student could understand written Esperanto after 20 hours better than French, German, Italian or Spanish after 100 hours.
- **Helmar Frank, Paderborn (1970s–1980s).** A class that learned Esperanto for 160 hours in school years 3–4 and then started English in year 5 reached the same English level by year 7 as a class that began English in year 3.
- **Roehr-Brackin and Tellier, Essex (review of studies from 2006–2016, published 2018).** Children aged 6–12 found Esperanto easier than French, but showed no measurable gain in language awareness or in later language learning.

Reviews say that many early studies had unclear goals, brief reports and weak methods. None compared adults learning Esperanto and Spanish to the same standard. The rough "about 150 hours" figure and the full evidence are in [how long it takes to learn Esperanto](https://esperantopedia.org/learn/how-long/).

## What is not easier in Esperanto?

- **The accusative and agreement.** Every direct object ends in *-n* and every adjective copies the noun's number and case: *Mi vidas grandajn hundojn.* Spanish speakers know agreement; English speakers do not. See the [arguments about these rules](https://esperantopedia.org/about/criticism/).
- **Correlatives.** A table of 45 words (*kiu, tiu, ĉiu, neniu, kie, tie…*) must be learned as a system.
- **Vocabulary.** Word building reduces memorising but does not remove it. The official vocabulary has 4,953 elements up to 2007, plus 420 roots added in 2023.
- **Practice.** Spanish speakers number hundreds of millions, so films, music and conversation are everywhere. Esperanto practice means online groups, events and travel.
- **Usefulness.** No country uses Esperanto, and almost no employer requires it.

## Which language should you learn?

| Your goal | Best choice | Why |
|---|---|---|
| Travel in Spain or Latin America | Spanish | Official in 21 countries; locals rarely speak Esperanto |
| Work and study | English, then Spanish | Largest number of speakers and learners; Esperanto is rarely required |
| Making friends in many countries | Esperanto or English | Esperanto has a close-knit community and the free hosting network [Pasporta Servo](https://esperantopedia.org/about/pasporta-servo/) |
| A fast, low-risk first language | Esperanto | Regular rules; a 12-lesson course covers the core grammar |
| Films, music, news, books | Spanish or English | Far larger output; Esperanto literature has an estimated 10,000–25,000 titles |
| Curiosity about languages | Esperanto | You see how a complete grammar works without the exceptions |

You can also combine them. Many Esperanto roots have Spanish relatives, but how much that helps has not been measured. For a choice between Esperanto and other constructed languages, see [Esperanto compared with Ido, Interlingua and others](https://esperantopedia.org/about/compared/).

## Common questions

### Is Esperanto easier than Spanish?

In spelling, verbs and gender, yes: Esperanto has no irregular verbs and no gender, while a Spanish verb has about 50 forms. For total learning time there is no direct study of adults, only old school experiments and a 2018 review of studies with children.

### Is Esperanto easier than English?

Spelling and stress are far easier, because English has 26 letters for dozens of sounds and no stress rule. English grammar is simple in some ways: no gender, no adjective agreement, no accusative. So the gap is smaller in grammar than in pronunciation.

### Is Esperanto similar to Spanish?

Partly. Both have five clear vowels and many Latin-based roots, but Esperanto's grammar is different, and Spanish is named as a source for only about 4% of the common roots.

### Should I learn Esperanto or Spanish first?

Learn Spanish if you want to talk to people in everyday life, travel or work. Learn Esperanto if you want a fast start, an easy test of language learning or its community. Many people do both.

### Can learning Esperanto help me learn Spanish?

Some school experiments report a preparatory effect, such as the Paderborn study. The best recent evidence, a 2018 review of English classroom studies (Essex), found no measurable gain in later language learning, so treat the claim with caution.

## Sources

- Akademio de Esperanto, [Fundamento de Esperanto (English grammar)](https://www.akademio-de-esperanto.org/fundamento/gramatiko_angla.html); PMEG, [basic pronunciation rules](https://bertilow.com/pmeg/skribo_elparolo/elparolo/bazaj_reguloj.html) and [Verboj](https://bertilow.com/pmeg/gramatiko/verboj/index.html)
- Wikipedia, [Spanish grammar](https://en.wikipedia.org/wiki/Spanish_grammar), [Spanish verbs](https://en.wikipedia.org/wiki/Spanish_verbs), [Spanish orthography](https://en.wikipedia.org/wiki/Spanish_orthography), [Spanish phonology](https://en.wikipedia.org/wiki/Spanish_phonology); Wiktionary, [ser](https://en.wiktionary.org/wiki/ser) (conjugation table; the form counts are our own)
- Wikipedia, [English grammar](https://en.wikipedia.org/wiki/English_grammar), [English phonology](https://en.wikipedia.org/wiki/English_phonology), [English orthography](https://en.wikipedia.org/wiki/English_orthography)
- Speakers: Instituto Cervantes, *El español en el mundo 2025*, as reported by [RTVC (28 October 2025)](https://rtvc.es/espanol-hablantes-28-octubre-2025/); Wikipedia, [Spanish language](https://en.wikipedia.org/wiki/Spanish_language), [English language](https://en.wikipedia.org/wiki/English_language), [List of languages by total number of speakers](https://en.wikipedia.org/wiki/List_of_languages_by_total_number_of_speakers) (Ethnologue figures)
- Our analysis of Wiktionary etymologies, ReVo and Tatoeba, 7 October 2026: [what Esperanto is based on](https://esperantopedia.org/about/word-origins/); Wiktionary entries (CC BY-SA) for the example words, via [Kaikki.org](https://kaikki.org/dictionary/Esperanto/)
- Learning time: U.S. Department of State, [Foreign Language Training (FSI)](https://www.state.gov/foreign-language-training/) and [Wikibooks: Language Learning Difficulty for English Speakers](https://en.wikibooks.org/wiki/Wikibooks:Language_Learning_Difficulty_for_English_Speakers); [DLIFLC: About](https://www.dliflc.edu/about/) and Wikipedia, [Defense Language Aptitude Battery](https://en.wikipedia.org/wiki/Defense_Language_Aptitude_Battery)
- Esperanto studies: Wikipedia, [Paderborn method](https://en.wikipedia.org/wiki/Paderborn_method) and [Helmar Frank](https://en.wikipedia.org/wiki/Helmar_Frank); Wikipédia (French), [Valeur propédeutique de l'espéranto](https://fr.wikipedia.org/wiki/Valeur_prop%C3%A9deutique_de_l%27esp%C3%A9ranto) (Thorndike); [Roehr-Brackin and Tellier (2018), University of Essex repository](http://repository.essex.ac.uk/24243/)
- Esperanto numbers: [how many people speak Esperanto](https://esperantopedia.org/about/speakers/); [Pasporta Servo](https://esperantopedia.org/about/pasporta-servo/); [Esperanto literature](https://esperantopedia.org/about/literature/)