Converting between TOEFL and IELTS
Overall, though, here's what they suggest:
|TOEFL SCORE||IELTS Band|
If you visit the main ETS page, you can find conversion tables for the specific sections of the test.
Converting Between TOEFL and CEFR
There are also conversion tables for TOEFL and CEFR. They are:
|TOEFL SCORE||TOEFL SECTION SCORES||CEFR LEVEL|
|95||R24, L22, S25, W24||C1|
|72||R18, L17, S20, W17||B2|
|42||R4, L9, S16, W13||B1|
Converting Between TOEFL and TOEIC
I've been asked a few times about how to convert TOEIC scores to TOEFL scores. However, as these tests are radically different such comparisons are meaningless. A Google search might turn up some conversion tables, but note that these are unofficial and of questionable usefulness.