Free OET Writing Score Estimator
Answer 8 short self-assessment questions about your last OET referral letter and get an instant band-score estimate. Mapped to the 2026 OET marking conventions used by CBLA.
How to use the OET Score Estimator
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Step 1
Open the questionnaire
The 8 questions cover the six OET criteria plus letter length and timing.
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Step 2
Answer honestly
Use your most recent practice letter as the reference. Honest answers produce useful estimates.
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Step 3
See your estimate
You'll see a band-score range (e.g. 300–350) with the weakest criterion flagged.
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Step 4
Plan your next step
Address the flagged criterion first. Use our Writing Checker for letter-level feedback.
Frequently asked questions
How accurate is the OET score estimator? +
It is calibrated against thousands of corrected letters but is a self-assessment, not a CBLA grade. Use it as a planning tool, not a pass prediction.
What OET band score do I need for the NHS? +
Most NHS roles require Grade B (350) in all four sub-tests. Always confirm with your regulator (NMC, GMC, GDC, GPhC, HCPC, RCVS).
Does the estimator follow the 2026 criteria? +
Yes. The question weighting reflects the current six-criterion model used by OET writing assessors since 2018, applied with 2026 strictness.
Is this an official OET tool? +
No. This is an independent estimator built by Dr. Mariam (PhD, 20+ years OET teaching, 11,000+ letters marked). It is not affiliated with CBLA.
This tool was designed by Dr. Mariam, PhD (English Professor, 20+ years of OET and IELTS teaching, 11,000+ letters personally marked). OET is owned by Cambridge Boxhill Language Assessment (CBLA). This tool is independent of CBLA and is not an official OET product. Target keyword: oet writing score estimator.