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What is CLB? Canadian Language Benchmarks explained

Direct answer

The Canadian Language Benchmarks (CLB) are Canada's national scale for describing English ability, from CLB 1 to CLB 12. NCLC is the equivalent French scale. Immigration programmes state their requirements in these levels, so every accepted test result is converted to a CLB or NCLC level per ability before it is used for eligibility or for CRS points.

Written by the Python Immigration editorial team · Reviewed by Gagandeep Singh Boparai, RCIC · CICC Licence No. R709890 · Last verified 2026-09-21

Key facts

Scale
CLB 1 to CLB 12 for English
French equivalent
NCLC, with the same level numbers
Measured
Separately for each of the four abilities
Commonly referenced
CLB 5, CLB 7 and CLB 9
Converted from
IELTS General Training, CELPIP-General, PTE Core, TEF Canada, TCF Canada

Last verified against official sources: 2026-09-21

How to read these tables

Each table shows the result needed in each ability to reach a given level. Find your score in the column for that ability; the level on the left is what that score converts to. Your profile is the set of four levels, not a single number — and where a programme states a minimum, every ability must reach it.

IELTS General Training to CLB
CLBListeningReadingWritingSpeaking
CLB 44.53.54.04.0
CLB 55.04.05.05.0
CLB 65.55.05.55.5
CLB 76.06.06.06.0
CLB 87.56.56.56.5
CLB 98.07.07.07.0
CLB 108.58.07.57.5
CELPIP-General to CLB
CLBListeningReadingWritingSpeaking
CLB 44444
CLB 55555
CLB 66666
CLB 77777
CLB 88888
CLB 99999
CLB 1010101010
PTE Core to CLB
CLBListeningReadingWritingSpeaking
CLB 418–2724–3223–3128–35
CLB 528–3833–4132–4036–41
CLB 639–4942–5041–5042–50
CLB 750–5951–5951–5951–58
CLB 860–7060–6860–6859–67
CLB 971–8169–7769–7868–75
CLB 1082–9078–9079–9076–90
TEF Canada to NCLC
NCLCListeningReadingWritingSpeaking
NCLC 4145–180121–150181–225181–225
NCLC 5181–216151–180226–270226–270
NCLC 6217–248181–206271–309271–309
NCLC 7249–279207–232310–348310–348
NCLC 8280–297233–247349–370349–370
NCLC 9298–315248–262371–392371–392
NCLC 10316–360263–300393–450393–450
TCF Canada to NCLC
NCLCListeningReadingWritingSpeaking
NCLC 4331–368342–37444
NCLC 5369–397375–40555
NCLC 6398–457406–45266
NCLC 7458–502453–49877
NCLC 8503–522499–52388
NCLC 9523–548524–54899
NCLC 10549–699549–69910+10+

Always check the official chart

These tables reproduce the IRCC equivalency charts. Conversion tables are changed from time to time — verify against the IRCC page linked below before relying on a borderline score.

Why the lowest ability matters

Programme minimums apply per ability. A candidate with three abilities at CLB 9 and one at CLB 6 has a CLB 6 profile for any rule stated as a minimum. In the CRS, the four abilities are scored individually, so raising the weakest one is usually where the most points sit.

Why CLB 7 and CLB 9 come up so often

  • CLB 7 is the level at which several programme requirements and transferability combinations begin to apply.
  • CLB 9 is the level at which the higher language and transferability point bands come into effect.
  • NCLC 7 is the level used for the French-language proficiency category — meeting it is a category criterion, not an invitation.

Do not oversimplify

Reaching CLB 9 does not mean a profile becomes competitive on its own. Age, education, work experience and a spouse's details all move the total. Estimate the whole score rather than one factor.

Common mistakes

  • Averaging four abilities into one level — the scale does not work that way.
  • Reading a CELPIP number as if it were an IELTS band.
  • Using an old conversion chart for a borderline score.
  • Treating NCLC 7 as an automatic invitation under the French category.

Frequently asked questions

What is the difference between CLB and NCLC?

They are the same framework in the two official languages: CLB describes English ability and NCLC describes French ability. The level numbers correspond, so NCLC 7 in French sits at the same level as CLB 7 in English.

What CLB does my IELTS score give me?

Find each of your four IELTS General Training results in the table above; each converts to a CLB level for that ability. Your profile is those four levels, and any stated minimum has to be met in all four.

Does a higher CLB guarantee an invitation?

No. A higher level raises your CRS score, but invitations depend on the rounds that are held and where your total sits within them.

What to do next

  1. Convert each of your four results to a level.
  2. Identify your weakest ability — that is the one the rules read.
  3. Estimate your CRS score with those levels.
  4. Decide whether retaking one ability is worth it before adding anything else.

Your next steps

Continue in the order most people find useful, rather than a list of unrelated pages.

This resource explains official requirements in plain language. It is general information, not immigration advice for your situation, and requirements change — always confirm against the official sources listed above.

Next step

Have your situation reviewed by a licensed RCIC

Send us your details and we'll tell you which Canadian immigration options may be worth exploring for your profile.

No obligation · Your information is kept private · Reviewed by CICC Licence No. R709890

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