Personal name Convert personal name into Roman alphabet.
Proper nouns Convert proper nouns except for administrative areas, traffic-related place names, person’s name.
Administrative areas Convert administrative areas, traffic-related place names.
General things Convert simple sentences or words.
Academic applications Convert them assuming Hangul is restored.
  • ① Revised Romanization of Korean
  • ② McCune-Reischauer Romanization
  • ③ Yale Romanization

Korean Alphabet 낮에는 덥고 밤에는 춥고

Personal name It is not a personal name.
[Allowed] 
Proper nouns Najeneun deopgo bameneun chupgo
Najenŭn tŏpko pamenŭn ch'upko
Naceynun tepko pameynun chwupko
Administrative areas ① Najeneun Deopgo Bameneun Chupgo
Najenŭn Tŏpko Pamenŭn Ch'upko
Naceynun Tepko Pameynun Chwupko
General things ① najeneun deopgo bameneun chupgo
② najenŭn tŏpko pamenŭn ch'upko
naceynun tepko pameynun chwupko
Academic applications ① naj-e-neun deob-go bam-e-neun chub-go
② nach-e-nŭn tŏp-ko pam-e-nŭn ch'up-ko
nac-ey-nun tep-ko pam-ey-nun chwup-ko