How to prepare for the ESAT: a researcher's guide (2027)

The ESAT — the Engineering and Science Admissions Test — is the admissions test you sit if you are applying for many engineering and physical-science courses at Cambridge, Imperial, Oxford or UCL for 2027 entry. It is a computer-based test of five modules, though you only sit the ones your course asks for. Cambridge uses it across engineering and the sciences; Imperial across most of its engineering departments plus Physics and Life Sciences; Oxford adopts it for Physics and Engineering Science from 2027 entry; UCL uses it only for Electronic and Electrical Engineering. There are two sittings a year. The October 2026 sitting runs from 12 to 16 October, and registration opens on 20 July 2026 and closes on 28 September. If you are applying to Oxford or Cambridge, you must take the October sitting. The short version of how to prepare: secure the AS-level content first, then practise it under a clock, because the test rewards understanding applied at speed — not memorised formulae.

The rest of this guide is the longer version.

What the ESAT actually is

The ESAT has five modules: Mathematics 1, Mathematics 2, Physics, Chemistry and Biology. Every candidate sits Mathematics 1; the others you take depending on your course. Most courses ask for Mathematics 1 plus two further modules — roughly three modules in total, or two hours of testing.

Each module is 40 minutes and 27 multiple-choice questions. It is sat on-screen at a Pearson VUE test centre, and no calculator is allowed — the arithmetic is designed to be done by hand. Each module is scored on a scale from 1.0 to 9.0, to one decimal place. There is no aggregate score and no formal pass mark; universities read the module scores that matter for your course.

It is worth being clear about what the ESAT is not. It is not a syllabus test you can cram the night before, and it is not a test of obscure content beyond school. The material sits at AS-level and GCSE level. What makes it demanding is that the questions put that familiar material into unfamiliar situations, and give you very little time to react.

Who needs it, course by course

The exact module combination is fixed by each course, so always check your course page. As a guide for 2027 entry:

• Cambridge. Engineering takes a fixed set — Mathematics 1, Mathematics 2 and Physics. Chemical Engineering and Biotechnology, Natural Sciences, and Veterinary Medicine take Mathematics 1 plus two modules of your choice. Note that Cambridge Medicine does not use the ESAT — it uses the UCAT.
• Imperial. Most engineering departments, plus Physics and Life Sciences, require the ESAT, and each department fixes its own combination. Physics, for example, is Mathematics 1, Mathematics 2 and Physics; Life Sciences is Mathematics 1, Chemistry and Biology; Design Engineering is Mathematics 1 and Mathematics 2.
• Oxford. Physics, Physics and Philosophy, and Engineering Science move to the ESAT from 2027 entry, replacing the former Physics Aptitude Test. The precise module requirements are published by UAT-UK, so treat the official test site as the authority for Oxford's exact combination rather than any secondary source.
• UCL. Only Electronic and Electrical Engineering (course codes H600 and H601) requires the ESAT. It is not a UCL-wide requirement, so if you are applying elsewhere at UCL you almost certainly do not sit it.

If your subject is Mathematics or Computer Science rather than engineering or a physical science, the ESAT is probably the wrong test to be preparing for — those applicants sit the TMUA instead, and it is worth reading what the TMUA involves before you spend a summer on the wrong paper.

Dates, fees and the January sitting

There are two testing windows each cycle. The October 2026 sitting runs 12–16 October; registration opens 20 July 2026 and closes 28 September, with results released on 16 November. The January sitting runs 4–8 January 2027 (registration opens 26 October, closes 21 December, results on 8 February).

The catch is which sitting your university accepts. Oxford and Cambridge applicants must sit in October — the January window is not an option for them, because their whole timetable runs earlier. Imperial and UCL accept either sitting. So for the two universities where the deadline pressure is highest, there is effectively one date, and you should plan your whole summer backwards from it.

Fees are £78 for candidates in the UK and Ireland and £133 elsewhere. A bursary scheme covers the full fee for eligible UK-resident candidates, but it has to be approved before you register, so apply for it early rather than at the last minute.

One point matters especially if you are sitting outside the UK: the test-centre availability for candidates in mainland China, Hong Kong and Macau is narrower than in the UK. Fewer dates within each window are offered, so the practical advice is to register as soon as booking opens and take whatever slot you can secure, rather than assuming you can pick your day.

What the test actually rewards

The ESAT is built on AS-level and GCSE content, but it does not ask you to recite it. It asks you to apply it in a situation you have not seen before, and it asks you to do so quickly. Twenty-seven questions in forty minutes is a little under ninety seconds a question — including reading the question, seeing what it is really asking, and doing the arithmetic by hand.

That time pressure changes what preparation should look like. A student who has drilled formulae but never had to choose which idea a problem needs will freeze the first time a question is dressed up unfamiliarly. A student who genuinely understands why a formula holds can recognise it even when the surface looks strange. So the aim is not to memorise more; it is to understand more deeply and then move faster. The single most common mistake we see is treating the ESAT like a content exam — grinding through notes — when it is really a thinking-under-time exam that happens to use school content.

A sensible twelve-week plan

You do not need a rigid schedule, but you do need a shape. Working back from the October sitting, a sensible plan across the summer looks roughly like this:

• July — register and diagnose. Registration opens on 20 July; get it done. Then sit one module untimed to find out where you actually stand, and list the topics that are shaky rather than assuming.
• August — rebuild the content. Close the gaps at the level of understanding, not just recall. This is the month to go back to the AS-level core and make sure each idea makes sense, because everything later depends on it.
• September — practise under the clock. Now add the constraint that makes the ESAT hard: time. Do questions in timed blocks, get comfortable skipping and returning, and practise the mental arithmetic that replaces a calculator.
• Early October — full mocks. In the final stretch, sit whole modules end to end under exam conditions, and review not just what you got wrong but why — which is where most of the improvement actually comes from.

The proportions matter more than the exact weeks: build understanding first, add speed second. Reverse that order and you get fast at the wrong things.

Practice materials

Start with the official materials. UAT-UK, which runs the test, publishes specification details, worked examples and specimen questions, and they are the truest guide to the real question style — use them as your anchor.

Alongside the official set, we host a free interactive ESAT mock: 135 original questions, 27 in each of the five modules, written to follow the official test guide (they are practice questions, not past papers). You can work through it module by module on our ESAT preparation page, which is a straightforward way to feel the timing before you are in the real thing. And because the ESAT tests school content applied under pressure, a secure A-level foundation is most of the battle — our A-level guide explains how the qualification is structured and assessed if you want to shore up the base first.

Where a researcher helps

Most of the ESAT can be prepared for on your own with the official materials and honest, timed practice. Where a tutor earns their place is on the harder margin: the questions where you can do every step but cannot see which step to take first, and the habit of thinking clearly when the clock is running. That is a coachable skill, and it is closer to how our tutors think for a living than to anything you can memorise — they are active PhD and postdoc researchers at top UK universities, working in these subjects every day, not people teaching from a mark scheme.

If the ESAT is on your list for 2027 entry, the best first move is the free mock on our ESAT page to see where you stand. If you would like a researcher's eye on your preparation, you can book a short call and we will tell you honestly whether we are the right fit.