Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Vocabulary Growth Calculator

Find out how many days it will take to grow your vocabulary from your current size to a target word count, given your study habits and retention. Ideal for language learners setting realistic milestones.

Current Vocabulary Size (words)

Target Vocabulary Size (words)

Daily Study Time (minutes)

Learning Method

Retention Rate

Fill in the required fields to see your result.

Language

CEFR Level Score Calculator

Convert any raw test score to a CEFR proficiency level on the A1–C2 scale. Ideal for teachers, test designers, and language learners benchmarking exam results.

Test Score (points)

Maximum Score (points)

Fill in the required fields to see your result.

Key differences

	Vocabulary Growth Calculator	CEFR Level Score Calculator
Category	Language	Language
Inputs required	5	2
Result	Days to Reach Target (days)	CEFR Level Score
What it does	Find out how many days it will take to grow your vocabulary from your current size to a target word count, given your study habits and retention. Ideal for language learners setting realistic milestones.	Convert any raw test score to a CEFR proficiency level on the A1–C2 scale. Ideal for teachers, test designers, and language learners benchmarking exam results.