Going from Hausa to Sinhala (เทเทเถเทเถฝ) has a composite linguistic distance of 87% (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/Arabic โ Sinhala
Afro-Asiatic โ Indo-European
The 5 languages with the lowest linguistic distance from Hausa:
A quick 3-question check between Hausa and Sinhala. No signup.