The honest answer is: it depends. Your native language, how much you study, and how often you use English outside lessons all affect the timeline significantly. For most adult learners, reaching conversational B1 level takes 400β600 hours of study. Reaching C1 takes 1,000 hours or more.
The US Foreign Service Institute (FSI) estimates that English takes approximately 600β750 hours of study for speakers of similar languages (European languages), and up to 2,200 hours for speakers of more distant languages such as Mandarin, Arabic or Japanese.
These are total study hours, not lesson hours alone β they include time spent studying outside class, reading, watching English media and using the language in real situations.
Here are realistic estimates for adult learners with 2β3 hours of study per week (including lessons):
Complete beginner to basic conversation. You can introduce yourself, handle simple transactions and understand common phrases.
Elementary to intermediate. You can handle everyday conversations, understand the main points of clear speech and write simple texts.
Intermediate to upper intermediate. You can discuss complex topics, understand most TV and films, and write detailed texts.
Upper intermediate to advanced. Near-fluent English for professional and academic contexts.
Advanced to mastery. Near-native ability across all skills and contexts.
The single biggest factor in how quickly you progress is the amount of time you spend actively using English β not passively studying it.
Students who speak English exclusively during lessons, watch English TV, read English books and speak to English speakers outside class progress significantly faster than those who only attend lessons.
A qualified tutor who gives immediate, accurate feedback accelerates progress far faster than self-study.
Lessons where you speak 80β90% of the time are far more effective than lessons where the teacher talks most.
Watching English TV with subtitles, listening to English podcasts and reading in English outside lessons accelerates progress.
Two 45-minute sessions per week is more effective than one 90-minute session β consistency matters.
The honest answer is: it depends. Your native language, how much you study, and how often you use English outside lessons all affect the timeline significantly. For most adult learners, reaching conversational B1 level takes 400β600 hours of study. Reaching C1 takes 1,000 hours or more.
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