# A-Levels — Definition & Explanation > From the SchoolBrowse Education Glossary. > HTML version: https://schoolbrowse.com/glossary/a-levels **In short:** Advanced academic qualifications taken by students in England, Wales, and Northern Ireland, typically at ages 16-18. **A-Levels** (Advanced Level) are academic qualifications typically taken by students aged 16-18 in England, Wales, and Northern Ireland. They are the primary route to university entry and are studied during Years 12-13 (sixth form). ## A-Level Structure Students typically study 3-4 A-Level subjects in depth over two years, with final exams at the end. Subjects are chosen by students based on interests and university/career goals. Grades range from A* to E. ## A-Levels and University Universities make conditional offers based on predicted A-Level grades. Requirements vary by course and university competitiveness. Some courses require specific subjects (e.g., sciences for medicine, maths for engineering). ## Frequently asked questions **Q: How many A-Levels do you need?** Most students take 3 A-Levels. Four can strengthen applications to competitive universities but are not required. Taking 5+ is unusual and generally unnecessary. **Q: Which A-Levels should I choose?** Choose subjects you enjoy and are good at. Research university course requirements. 'Facilitating subjects' (maths, sciences, English, languages, history, geography) keep many options open. **Q: What is the difference between A-Levels and IB?** A-Levels involve deep study of 3-4 chosen subjects. IB is a broader program requiring six subjects plus core components. Both are respected for university entry. --- Source: SchoolBrowse Education Glossary (https://schoolbrowse.com/glossary). Please attribute and link to https://schoolbrowse.com/glossary/a-levels when citing this definition.