[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"blog-article-calculate-extra-time-gcse-alevel-exams":3,"blog-related-calculate-extra-time-gcse-alevel-exams":19},{"id":4,"user_id":5,"title":6,"body":7,"created_at":8,"updated_at":9,"featured_image_url":10,"slug":11,"excerpt":12,"status":13,"published_at":14,"meta_title":6,"meta_description":15,"view_count":16,"post_tag_relations":17,"tags":18},"bf354381-6bd3-40fc-bb2f-e5b55dcc65fc",null,"Exam Extra Time Calculator: 10%, 25% & 50% (GCSE & A-Level)","> **Skip the maths:** our free [extra time calculator](\u002Fextra-time-calculator) gives you the exact finish time for any duration with 10%, 25% or 50% extra time — and can launch a live timer with it applied.\n\nStudents with access arrangements often need extra time during exams. Here is how to calculate it correctly.\n\nThe most common percentages are 25% extra time and 50% extra time.\n\nFor 25% extra time, multiply the exam duration by 1.25\nFor 50% extra time, multiply the exam duration by 1.5\n\nExamples:\n- 1 hour 30 minute exam with 25% extra = 1h 30m x 1.25 = 1 hour 52 minutes\n- 2 hour exam with 25% extra = 2h x 1.25 = 2 hours 30 minutes\n- 1 hour 45 minute exam with 50% extra = 1h 45m x 1.5 = 2 hours 37 minutes\n\nAlways round up to the nearest minute. Never round down.\n\nCommon mistakes to avoid:\n- Forgetting to add the extra time to the base duration\n- Rounding down instead of up\n- Applying wrong percentage to wrong student\n- Not documenting the accommodations properly\n\nKeep accurate records of all timing adjustments for exam board compliance.\n\n---\n\n**Running exams with extra time groups?** ExamClock displays each extra-time cohort's finish time on the hall screen automatically — [try the calculator](\u002Fextra-time-calculator) or [start free](\u002Fauth\u002Fsignup).","2025-12-18T10:46:39.036723+00:00","2026-08-13T04:54:43.531106+00:00","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1534644107580-3a4dbd494a95?q=80&w=1000&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D","calculate-extra-time-gcse-alevel-exams","A simple guide for exam coordinators on calculating 25% and 50% extra time for students with access arrangements.","published","2025-12-11T10:46:39.036723+00:00","Work out 10%, 25% or 50% extra time in seconds - exact minutes added and finish time for any exam, plus how rounding works. Free calculator and guide",2,[],[],[20,26],{"id":21,"title":22,"slug":23,"featured_image_url":24,"published_at":25},"1875cd18-9e9f-46c4-bd4f-feea472a545a","The Complete Guide to Exam Display Software for International Schools","exam-display-software-for-international-schools","","2026-01-30T10:17:36.593+00:00",{"id":27,"title":28,"slug":29,"featured_image_url":30,"published_at":31},"15742ffb-41fa-4878-8dc1-53d5522a0adf","Why Exam Timing Software Must Work Offline","exam-timing-software-must-work-offline","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1665979738279-bd2441290e02?q=80&w=2000&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D","2025-12-15T10:46:39.036723+00:00"]