Going from Burmese to Indonesian (Bahasa Indonesia) has a composite linguistic distance of 83% (heuristic estimate). Below is the dimension-by-dimension breakdown.
Shared vocabulary, cognates, and loanwords.
Morphology, syntax, word order, cases.
Shared sounds and phoneme inventory.
Burmese → Latin
Sino-Tibetan ↔ Austronesian
The 5 languages with the lowest linguistic distance from Burmese:
A quick 3-question check between Burmese and Indonesian. No signup.