Backspace to Offset Conversion Chart

Backspace (inches) to Offset (mm)

BACKSPACE 2.5" 2.75" 3" 3.25" 3.5" 3.75" 4" 4.25" 4.5" 4.75" 5" 5.25" 5.5" 5.75" 6" 6.25" 6.5"
 
WHEEL WIDTH
4" 0 6 12 19 25 32 38 44 51 57 63 69 76 - - - -
4.5" -6 0 6 12 19 25 32 38 44 51 57 63 69 76 - - -
5" -12 -6 0 6 12 19 25 32 38 44 51 57 63 69 76 - -
5.5" -19 -12 -6 0 6 12 19 25 32 38 44 51 57 63 69 76 -
6" -25 -19 -12 -6 0 6 12 19 25 32 38 44 51 57 63 69 76
6.5" -32 -25 -19 -12 -6 0 6 12 19 25 32 38 44 51 57 63 69
7" -38 -32 -25 -19 -12 -6 0 6 12 19 25 32 38 44 51 57 63
7.5" -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25 32 38 44 51 57
8" -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25 32 38 44 51
8.5" -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25 32 38 44
9" -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25 32 38
9.5" -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25 32
10" -75 -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25
10.5" -81 -75 -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19
11" - -81 -75 -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12
11.5" - - -81 -75 -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6
12" - - - -81 -75 -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0