Merhale was an Ottoman unit of length.
8 fersahs were equal to 1 merhale. Fersah was based on the distance covered by a horse in normal gait per hour. Exact definition was 5685 meters.[1]
So 1 merhale can be converted to meters.[2]
1 merhale = 8 ⋅ 5685 = 45480 meters {\displaystyle 1\quad {\mbox{merhale}}=8\cdot 5685=45480\quad {\mbox{meters}}}
