Most people who say they are doing an IELTS test simulation are doing a practice test with the hard parts removed — the clock paused for a phone call, the audio replayed once "just to check", a quick dictionary lookup that would never be possible on the day.
The questions were real. The conditions were not, and the conditions are what the score is a measurement of.
Short answer: an IELTS test simulation is a practice test plus the exam's constraints — one clock you never pause, audio that plays once, no dictionary or notes, sections in the real order, at the time of day you are booked for.
Run one every two weeks in the month before your test, score it against the official raw-score conversion, and spend more time analysing it than sitting it. Everything below is how to do that at home, for free.
What makes a simulation different from a practice test?
Four constraints, all of which are easy to drop by accident:
One clock, never paused. Reading is 60 minutes for three passages and 40 questions; Writing is 60 minutes for both tasks together. Splitting Writing into "40 minutes for Task 2 now, Task 1 tomorrow" measures something the exam does not.
Audio plays once. No rewind in Listening, ever. This single rule accounts for most of the gap between home scores and real scores.
No external help. No dictionary, no spellchecker, no grammar tool, no glancing at a vocabulary list. If your Writing practice runs in a word processor with autocorrect, your spelling accuracy is untested.
Real order, real day, real fatigue. Listening, Reading and Writing run back to back with no break in the actual test. Simulating Writing while fresh, after a coffee, on a Sunday morning, tells you how you write when fresh — not how you write in the third hour.
How do you run an IELTS test simulation at home?
Six steps, about three hours end to end:
- Book the slot. A three-hour block at the same time of day as your booked test. Tell the household you are unavailable.
- Strip the environment. Phone in another room, tabs closed, no dictionary, no notes. Water and a pen.
- Run the sections in exam order. Listening first, then Reading for 60 minutes, then Writing Task 1 and Task 2 on one 60-minute clock, with no break between Reading and Writing.
- Obey the constraints exactly. Audio plays once. On computer-delivered IELTS there is no extra answer-transfer time in Reading. Do not pause the clock for any reason.
- Do Speaking separately, recorded. Parts 1–3 with real timings, recorded, with no restarting an answer you dislike.
- Score, then diagnose. Convert raw scores to bands, then spend longer on the analysis than on the test itself — classify every miss by question type and by cause.
Why does Reading punish a sloppy simulation the most?
Because the Reading band comes from a raw-score conversion over a fixed 40-mark paper.
A "simulation" built from a five-question set cannot produce a meaningful band at all: on a short set the arithmetic only lets you land on a handful of widely spaced bands, so the number you get is closer to noise than to a measurement.
It also matters that the paper is exactly 40 marks across three passages of increasing difficulty. Passage 3 is where the time pressure bites, and a simulation that starts with Passage 1 and stops when you get bored never reaches the part that decides your band.
Our raw-score-to-band conversion table shows what each additional correct answer is worth — usually two or three marks per half band, which is one question type behaving badly.
The full Reading test on IELTSbiz is built to that specification: three passages, exactly 40 questions across the real question-type mix, one 60-minute clock derived from a server timestamp so it survives a page refresh, and a band from the official conversion rather than a percentage.
What does a full four-skill simulation add?
Stamina and sequencing — the two things sectional practice cannot teach. Candidates routinely discover that their Writing band drops a full band when Task 2 is attempted after 60 minutes of Reading rather than first thing.
That is not a writing problem; it is a pacing problem, and you can only find it by running the sections together.
The IELTSbiz full mock exam runs all four skills in one guided sitting — Listening, Reading, Writing and Speaking — and returns a band per section plus an overall band, calculated the way IELTS calculates it: the average of the four skills, rounded to the nearest half band.
It is free to start with a free account.
| Section | Real exam constraint | What people get wrong at home |
|---|---|---|
| Listening | Audio plays once, ~30 minutes | Replaying "just once" to check an answer |
| Reading | 3 passages, 40 questions, 60 minutes | Sitting single passages and scaling the score up |
| Writing | Task 1 + Task 2, 60 minutes total | Splitting the tasks across two sessions |
| Speaking | Parts 1–3, 11–14 minutes, live | Re-recording answers until they sound good |
| Whole test | Three sections back to back | Breaks between sections, so fatigue never registers |
What do you need to run one, and what does the real timetable look like?
Nothing you do not already have: a device or printed papers, headphones, a pen, water, a clock you cannot pause, and three uninterrupted hours. The timetable to copy:
| Time | Section | Rules |
|---|---|---|
| 0:00–0:30 | Listening, 4 parts, 40 questions | Audio plays once. Paper-based tests add 10 minutes to transfer answers; computer-based tests add 2 minutes to check |
| 0:30–1:30 | Reading, 3 passages, 40 questions | 60 minutes total, no extra transfer time. Aim for 17 / 20 / 23 minutes across the three passages |
| 1:30–2:30 | Writing Task 1 + Task 2 | One 60-minute clock. Spend ~20 on Task 1 and ~40 on Task 2 — Task 2 carries twice the marks |
| Separately | Speaking, Parts 1–3 | 11–14 minutes, recorded, no restarts. Often a different day in the real exam |
Note what is missing from that table: breaks. There is no scheduled break between Listening, Reading and Writing, and this is the single detail most home simulations quietly drop.
Does computer-delivered IELTS change the simulation?
Yes, in ways worth rehearsing on the format you actually booked.
Answer transfer. On paper you get 10 extra minutes after Listening to copy answers to the answer sheet; on computer you type as you go and get about 2 minutes to review. Simulating the wrong one gives you a false sense of the clock.
Reading navigation. On screen the passage and questions sit side by side and you scroll; on paper you flip. Highlighting works differently. Whichever you booked, practise in that shape — this is worth two or three marks purely in retrieval speed.
Writing. Typing gives you a live word count and easy editing; handwriting does not, and handwriting also has to be legible. If you booked paper, at least two of your simulated essays should be handwritten, timed, on lined paper.
Listening. Computer-delivered plays through headphones with a volume check at the start; paper-based may play through room speakers. Neither replays.
How do you score your own simulation honestly?
Listening and Reading are objective: count marks out of 40 and convert. Reading Band 7 is 30/40 and Band 8 is 35/40; Listening Band 7 is 30/40 and Band 8 is 35/40 on its own slightly different table.
Use the band score calculator for the overall figure, which is the average of the four skills rounded to the nearest half band — never average per-section bands by hand and never convert a section that was not the full 40 questions.
Writing and Speaking are the honest difficulty. Self-scoring your own essay is nearly worthless: everybody marks their own Task Response generously because they know what they meant.
Two workable options — have the essay marked by something that applies the four official criteria consistently (the AI Writing Checker does this in under a minute; free trial, then Pro), or put the essay away for 48 hours and mark it against the public band descriptors as though a stranger wrote it.
The first is better; the second is free.
For Speaking, listen back to the recording with a timer and count three things: total speaking time versus the examiner's, the number of fillers per minute, and how many answers died before the question was actually answered. Those three numbers move before your fluency band does.
Ten things that quietly invalidate a home simulation
- Replaying any audio, even once, even "just to check".
- Pausing the clock — for a phone call, a bathroom break, a snack.
- Sitting Writing on a different day from Reading.
- Using material you have already seen.
- Looking up one word. It is never one word.
- Writing essays in an app with autocorrect and grammar suggestions.
- Practising on computer for a paper test, or the reverse.
- Skipping Speaking because there is no one to talk to — record it instead.
- Simulating a five-question Reading set and scaling the score to 40.
- Scoring it, feeling something about the number, and never analysing it.
Each of those is worth roughly a quarter to half a band. Two or three together explain almost every "I got 7.5 at home and 6.0 in the exam" story.
How often should you simulate?
Every two weeks in the final month, and no more. A full simulation costs three hours plus a serious analysis session, and its value is entirely in the analysis.
Between simulations, drill: one question type at a time, timed but short, with feedback that names why an answer was wrong. That is what actually changes the next simulation's number.
A useful sequence for the last four weeks: simulate, diagnose, drill the two weakest question types for ten days, simulate again, compare per-type bands rather than overall bands. If the overall band has not moved but Matching Headings went from 5.5 to 7.0, the plan is working and the next simulation will show it.
What should a simulation tell you afterwards?
Not "Band 6.5". It should tell you which section lost the most marks against your target, which question type inside that section did the damage, whether the losses were comprehension or transcription, and where in the three hours your accuracy fell off.
If your simulation cannot answer those four questions, it produced a score rather than information.
That is the whole reason IELTSbiz tracks an estimated band for each of the 11 reading question types rather than one figure, and why every wrong answer comes back with the named trap and the evidence sentence.
Sit the simulation to find the gap; use the drilling to close it.
Check where you stand against your target with the band score calculator, and if Writing is the weak section, the AI Writing Checker marks a Task 1 or Task 2 essay against all four official criteria in under a minute (free trial, then Pro).
IELTSbiz is independent and is not affiliated with IDP, the British Council or Cambridge, who jointly own and deliver the IELTS test. Test format details above reflect the official specification as of August 2026 — always confirm current arrangements with your test centre.