The ideal duration for an abroad study visa depends on the program length and destination country. Typically, student visas align with the academic course duration, ranging from 1 to 4 years for undergraduate or postgraduate programs.
Short-term courses or language programs may require visas valid for 6 months to 1 year. Some countries, like the USA, issue F-1 visas for the entire program, while others, like the UK, grant visas covering the course plus a short post-study period.
Always check the specific immigration policies of the host country and ensure your visa covers your study period and any optional practical training.