Going from Finnish to Amharic (አማርኛ) has a composite linguistic distance of 97% (heuristic estimate). Below is the dimension-by-dimension breakdown.
Shared vocabulary, cognates, and loanwords.
Morphology, syntax, word order, cases.
Shared sounds and phoneme inventory.
Latin → Ge'ez
Uralic ↔ Afro-Asiatic
The 5 languages with the lowest linguistic distance from Finnish:
A quick 3-question check between Finnish and Amharic. No signup.