Oxford Read and Imagine Headwords Wordcount YL
ORI ES Earely Starter 30 50 0.1
ORI S Starter 100 120 0.3
ORI 0 Beginner 150 200 0.5
ORI 1 Level 1 300 600 0.8
ORI 2 Level 2 450 750 1.2
ORI 3 Level 3 600 1000 1.6
ORI 4 Level 4 750 1400 2.0
ORI 5 Level 5 900 2200 2.4
ORI 6 Level 6 1050 3000 2.8

Exact word count for each title is on the back cover of each book.