The Murray belt you gave me 37 X 110 has an English Size of 1/2" by 43 7/8" If my conversion is correct that would be 17.7 cm X 1114.425 cm. I hope this helps you.
I think I found our problem. I used 25.4 cm = 1 in, when I should have used 2.54 cm.
With that mistake solved a 1/2" X 43 7/8" belt would equal 1.27 cm X 111.44 cm. Do you have any belt sizes close to that? Sorry about my mistake and bad information.