IELTS band score calculator & conversion data

Live tool: https://rooverr.github.io/ielts-practice/

Convert an IELTS raw score out of 40 into a band for Listening, Academic Reading or General Training Reading — and see how many more questions stand between you and your target band. The same tables are published as JSON for anyone building against them.

For students

• Live converter with a slider, plus the actionable number: how many more correct answers reach the next band.
• Band targets at a glance — the raw score where each of bands 6 to 8 begins, per section.
• The overall-band rule, which is officially fixed: average the four skills, round to the nearest half band, ties round up.

For developers

File	Contents
data/listening.json	Listening — one table covers both Academic and General Training
data/reading-academic.json	Academic Reading
data/reading-general.json	General Training Reading — noticeably harsher at the top
data/overall-band-rounding.json	The official overall-band rule + worked examples

const { thresholds } = await (await fetch('data/reading-academic.json')).json();

// thresholds are ordered high → low, so the first match wins
const rawToBand = (raw) => thresholds.find((t) => raw >= t.rawMin)?.band ?? null;

rawToBand(30); // 7
rawToBand(2);  // null — below the lowest listed threshold

Evaluate descending. A naive ascending scan returns the lowest band rather than the highest.

Accuracy — please read

The IELTS Partners do not publish a fixed row-by-row raw-score table, and the real boundaries shift by roughly one mark between test versions. These tables are indicative.

What is official:

• the band 5 / 6 / 7 / 8 anchor marks, and
• the overall-band rounding rule described above.

If you are one mark from a boundary, you are genuinely on the edge rather than safely across it. Anything presenting these rows as exact official boundaries is overstating what exists. Every JSON file repeats this caveat in its own note field so it travels with the data.

Corrections welcome

Sat a real test where a boundary disagreed with these tables? Open an issue with the section, your raw score and the band you received. Reference data only stays honest when it gets corrected against reality.

Why this exists

These are the same tables that score live mock tests at IELTS Practice, which is the only reason they stay current. Publishing them separately keeps one source of truth.

Reference data, free to reuse. IELTS is a registered trademark of its respective owners; this project is independent and unaffiliated.