Online English courses for work, study and exams

English is the most widely used language in the world. Estimates such as those from Ethnologue put the number of English speakers at around 1.5 billion in 2025, and most of them learned English as a second or foreign language. When you use English at work, you will usually talk to other non-native speakers, for example colleagues in Poland, India, Brazil or Vietnam.

Many fields treat English as a basic requirement. Software development, research, medicine, logistics, aviation, hospitality and any company with international clients run large parts of their work in English. Most scientific journals publish in English, and international conferences use it as their main language. Universities in non-English-speaking countries also offer a growing number of English-taught degrees, and they ask for proof of your level.

An online course fits around a full-time job. You can join a live class in the evening, practise with an app on the train or talk to an AI conversation partner during a lunch break. English also has the largest pool of online teachers of any language, including native speakers from the US, the UK, Ireland, Canada, South Africa, Australia and New Zealand.

The Common European Framework of Reference for Languages (CEFR) describes language ability on six levels. A1 and A2 stand for basic users, B1 and B2 for independent users, and C1 and C2 for proficient users. Almost every course, textbook and English test states its level on this scale.

Cambridge English publishes guideline figures for guided learning hours, meaning lessons plus supervised study. The figures are cumulative and count from complete beginner. For each step from one level to the next, Cambridge estimates about 200 hours.

A worked example shows what this means for planning. Suppose a placement test puts you at B1 and your target is B2. You then need roughly 150 to 200 guided hours. At three hours of lessons per week that takes about a year; at six hours per week it takes about six to eight months.

Your native language affects the pace. Speakers of Dutch, German or the Scandinavian languages share many words and structures with English and often move faster. Speakers of Arabic, Chinese, Japanese or Korean start with a different script and grammar and usually need more hours for the same level.

Every native language leaves its own traces in English. Teachers call this interference: your first language shapes how you pronounce sounds and build sentences in the new one.

Three areas trouble almost all learners. English spelling tells you little about pronunciation: though, through and tough end in the same letters and sound completely different. Phrasal verbs, verbs combined with a small word such as 'give up' or 'run into', change meaning in ways you have to learn one by one. Articles ('a', 'the' or none) follow rules that do not exist in many languages.

False friends cause a further group of errors. False friends are words that look similar in two languages but mean different things. 'Actual' means real, not current, and 'eventually' means in the end, not possibly.

English has several standard varieties. The best known are British and American English, and Canada, Australia, Ireland, New Zealand, South Africa and India have their own standards as well. All major English tests accept any standard variety, as long as you use one spelling system consistently within a text.

At work you will mostly use English as a lingua franca, meaning a shared language between people with different native languages. In that setting, being easy to understand counts for more than sounding British or American. A good course therefore trains your listening with Indian, Nigerian, Scottish and Australian speakers, too.

Online English courses differ above all in their learning goal. The format, whether group, one-to-one, app or AI, comes second.

1. A general English course trains listening, reading, writing and speaking at every level from A1 to C2.
2. A conversation course focuses on fluent speaking, pronunciation and everyday situations such as travel and small talk.
3. A business English course practises meetings, emails, calls, presentations and negotiations.
4. A specialised course teaches the vocabulary of one profession, for example medicine, nursing, law, IT, finance or aviation.
5. An academic course, often called EAP (English for Academic Purposes), prepares you for lectures, essays and referencing at an English-speaking university.
6. An exam course prepares you for one test, such as IELTS, TOEFL, Cambridge English or TOEIC.
7. An AI course puts an AI tutor at the centre, which scores your pronunciation with speech recognition and adapts exercises to your mistakes.

For the format you have four main options. Live group classes with four to eight learners cost less per hour. One-to-one lessons adapt completely to your gaps. Self-study platforms with a tutor offer structured units, and apps or AI tutors suit short daily practice.

A certificate proves your English level to universities, immigration offices and employers. All major tests assess listening, reading, writing and speaking, but they differ in purpose, scale and validity. The CEFR scale from A1 to C2 serves as the common reference point between them.

Two major tests changed in 2026. The TOEFL iBT switched to a new format on 21 January 2026. Its reading and listening sections are now adaptive, which means the difficulty of the questions adjusts to your answers. Scores appear on a 1 to 6 scale aligned with the CEFR, and during a two-year transition ETS also reports a comparable score on the familiar 0 to 120 scale. IELTS has been moving all tests to computer since mid-2026, with timing that varies by country; in selected markets you may still write the Writing section on paper. IELTS Academic is also available as an at-home test in selected countries.

Cambridge certificates do not expire. Some universities and immigration offices still ask for a result that is no more than two years old.

The price of an online English course depends mainly on the format. One-to-one lessons cost the most and apps the least. The ranges are rough 2026 market values in euros; prices in US dollars are of a similar order. They vary with the provider, the teacher's country and the specialisation.

Companies often pay more than 60 euros per hour for experienced business English trainers. Exam courses usually come as packages of six to twelve weeks with mock tests and marking of writing tasks.

Several options can lower your costs.

• Many employers pay for English training that your role requires.
• In some countries, such as Germany, you can deduct job-related language courses from your taxable income.
• Public libraries and universities often give free access to learning platforms.

An online English course suits you when it matches your goal, your level and your schedule. Ask the provider for written answers before you pay.

1. Does the provider offer a placement test that places you on the scale of the Common European Framework of Reference (CEFR) from A1 to C2?
2. Does the course name a concrete target, such as B2 in twelve weeks or IELTS Band 7?
3. How many minutes do you speak yourself in each lesson?
4. What training do the teachers have, for example a CELTA or a degree in English teaching?
5. Do you get written feedback on your own texts?
6. Can you book a trial lesson and reschedule at short notice?
7. How long is the contract, and how do you cancel?
8. Where does the provider store your recordings and data, and does it follow data protection law such as the EU's GDPR?

The CELTA is a Cambridge certificate for English teachers. It shows that a teacher has completed assessed training in teaching. Being a native speaker alone does not qualify anyone to teach.

Many adults stall at B1 or B2, the third and fourth of the six CEFR levels. They understand a lot, but they speak with the same small set of words. Teachers call this stall the intermediate plateau. Five habits help you move past it.

• Listen to English for 20 to 30 minutes every day, for example podcasts or series with English subtitles.
• Repeat sentences straight after a recording. This technique is called shadowing, and it trains pronunciation and intonation.
• Learn words in fixed combinations, such as 'make a decision' instead of only 'decision'. These combinations are called collocations.
• Review vocabulary with a flashcard app that spaces out repetitions automatically. This method is called spaced repetition.
• Write a short text every week and have a teacher correct it.

Record yourself speaking every few weeks and compare the recordings to hear whether your pronunciation is getting clearer. Link the course to your daily life: read articles from your profession in English and switch your phone's language to English.