The honest answer
For most candidates following a structured, focused programme, moving 0.5 to 1.0 of a band takes roughly 8 to 12 weeks of consistent work. But that range hides a lot, and the honest version is this: it depends on which skill is holding you back, how you study, and the quality of feedback you get — far more than on how many hours you log.
The reason the timeline varies so much is simple. Band 6 to Band 7 is not a "do more" problem — it is a "do differently" problem.
Why more practice tests do not move you
Most people stuck at 6.0 to 6.5 are not short of practice. They have done dozens of tests. The plateau persists because practice tests measure your band; they do not change it. Sitting another mock simply confirms the same habits are still there:
Doing the same test again does not remove any of those. Targeted correction does.
What actually turns a 6.5 into a 7.0
The jump is built from a small number of high-leverage changes:
Error reduction, not complexity. A clean, accurate 6.5-level sentence scores higher than an ambitious 7.5-level sentence with two mistakes. The real secret to a higher grammar score is fewer errors, not fancier structures.
Natural collocations in context. Examiners reward words used the way fluent speakers actually combine them — not rare vocabulary dropped in to impress.
Task response precision. In Writing especially, addressing every part of the question, clearly, is often the difference between 6.5 and 7.0.
Fluency and coherence. In Speaking, the marks live in natural flow and clear linking — not in memorised "advanced" phrases that disrupt your rhythm.
A realistic way to plan the weeks
A focused 8 to 12 week block tends to look like this:
What speeds it up or slows it down
If you are a nurse or doctor
If you are targeting NMBI — Band 7 with one 6.5 allowed — or the IMC — 6.5 in every skill, 7.0 overall — the plan is the same but the target is precise, usually a Writing or Speaking band that needs to move from 6.5 to 7.0. That is a well-defined, achievable jump with the right method.
How we help
Bespoke IELTS is built around exactly this path: diagnose, remove, build, confirm — with examiner-level feedback at every step.
Start your 7-day free trial and find out precisely what is between you and Band 7.
Quick answers
Can I improve a full band in a month? Sometimes, in a single skill, with intensive focused work — but a realistic, durable jump across skills is usually 8 to 12 weeks.
Will more mock tests get me to 7.0? On their own, no. They reveal the gap; targeted correction closes it.
Which skill is hardest to improve? For most candidates, Writing — because the marks depend on habits that take deliberate work to change.