factor

AutoCAD Scale Factor Charts

AutoCAD Scale Factors Charts

Here are some simple charts to help you convert drawing scale to scale factor, for working in CAD

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Architectural Scales

Drawing
Scale
Scale
Factor
Viewport
Scale
Decimal
Scale
1/16″ = 1′-0″ 192 1/192xp .0625″ = 1′-0″
3/32″ = 1′-0″ 128 1/128xp .09375″ = 1′-0″
1/8″ = 1′-0″ 96 1/96xp .125″ = 1′-0″
3/16″ = 1′-0″ 64 1/64xp .1875″ = 1′-0″
1/4″ = 1′-0″ 48 1/48xp .25″ = 1′-0″
3/8″ = 1′-0″ 32 1/32xp .375″ = 1′-0″
1/2″ = 1′-0″ 24 1/24xp .50″ = 1′-0″
3/4″ = 1′-0″ 16 1/16xp .75″ = 1′-0″
1″ = 1′-0″ 12 1/12xp 1″ = 1′-0″
1 1/2″ = 1′-0″ 8 1/8xp 1.5″ = 1′-0″
3″ = 1′-0″ 4 1/4xp  3″ = 1′-0″

Engineering Scales

DRAWING SCALE SCALE FACTOR VIEWPORT SCALE
1″ = 10′-0″ 120 1/120xp
1″ = 20′-0″ 240 1/240xp
1″ = 30′-0″ 360 1/360xp
1″ = 40′-0″ 480 1/480xp
1″ = 50′-0″ 600 1/600xp
1″= 60′-0″ 720 1/720xp
1″ = 70′-0″ 840 1/840xp
1″ = 80′-0″ 960 1/960xp
1″ = 90′-0″ 1080 1/1080xp
1″ = 100′-0″ 1200 1/1200xp

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Posted by Michael Mellor in AutoCAD tips