Bé-la̍t (馬力; horsepower; hp) sī chi̍t ê chin kó͘-chá ê kong-lu̍t Eng-chè tan-ūi. Chit-má, tû-liáu hâng-khong, chō-chûn kap khì-chhia kang-gia̍p iáu ū teh sú-iōng bé-la̍t tan-ūi, kî-thaⁿ léng-he̍k í-keng chin hán-tit teh ēng bé-la̍t ah; kok-chè tan-ūi ê (W) khah ū lâng teh ēng.

Bo̍k-chiân bé-la̍t ê tēng-gī sī:

1 hp = 745.69987158227022 W