Conversion Table: True Size (Inches) to Scale Size ...

1 Conversion table : true size ( inches ) to Scale size (Fractional inches ) The following table , developed by Ken Dorr, allows you to convert dimensions on prototype, measured in inches , to dimensions on a model To use the table , find the prototype (" true ") dimension in inches in the left hand column. Then translate across until you reach the Scale column for the Scale of your model, and read off the Scale dimension in inches . Example: You want to determine how large a true size 10" plank on prototype will be on a 3/16"=1' Scale model. To determine the width of the Scale plank, locate 10" on the true Scale column at the left side of the chart. Project right to the 3/16" Scale column. The Scale dimension is 5/32". true Scale 1/32 1/16 3/32 1/83/161/43/81/25/8 3/4 11/64 1/32 1/16 1/8 3/16 1/64 1/4 1/64 5/16 3/8 7/16 1/2 1/64 1/32 9/16 3/64 5/8 11/16 3/4 1/64 1/32 3/64 1/16 13/16 7/8 15/16 5/64 1 1/64 1/32 1/16 1-1/8 3/64 3/32 1-1/4 5/64 1-3/8 1-1/2 1/64 1/32 3/64 1/16 5/64 3/32 1/8 1-5/8 1-3/4 7/64 1-7/8

2 5/64 5/32 2- 1/64 1/32 1/16 1/8 2-1/8 2-1/4 3/64 3/32 9/64 3/16 2-3/8 2-1/2 5/64 5/32 2-5/8 7/64 7/32 2-3/4 11/64 2-7/8 3- 1/64 1/323/64 1/16 3/32 1/8 5/32 3/16 1/4 3-1/8 3-1/4 13/64 3-3/8 9/64 9/32 3-1/2 7/64 7/32 3-5/8 3-3/4 5/64 5/32 15/64 5/16 3-7/8 4- 1/32 1/16 1/8 1/4 4-1/8 11/64 11/324-1/4 17/64 4-3/8 4-1/2 3/64 3/32 9/64 3/16 15/64 9/32 3/8 4-5/8 4-3/4 19/64 4-7/8 13/64 13/325- 5/64 5/32 5/16 5-1/8 5-1/4 7/64 7/32 21/64 7/16 5-3/8 5-1/2 11/64 11/32 5-5/8 15/64 15/325-3/4 23/64 5-7/8 6- 1/64 1/32 3/65 1/163/32 1/8 3/16 1/4 5/16 3/8 1/2 6-1/8 6-1/4 25/64 6-3/8 17/64 17/326-1/2 13/64 13/32 6-5/8 6-3/4 9/64 9/32 27/64 9/16 6-7/8 7- 7/64 7/32 7/16 7-1/8 19/64 19/327-1/4 29/64

3 7-3/8 7-1/2 5/65 5/32 15/645/16 25/64 15/32 5/8 7-5/8 7-3/4 31/64 7-7/8 21/64 21/328- 1/16 1/8 1/4 1/2 8-1/8 8-1/4 11/64 11/32 33/64 11/168-3/8 8-1/2 17/64 17/32 8-5/8 23/64 23/328-3/4 35/64 8-7/8 9- 3/64 3/329/64 3/16 9/32 3/8 15/32 9/16 3/4 9-1/8 9-1/4 37/64 9-3/8 25/64 25/329-1/2 19/64 19/32 9-5/8 9-3/4 13/64 13/32 39/64 13/169-7/8 10- 5/65 5/32 5/16 5/8 10-1/8 27/64 27/3210-1/4 41/64 10-3/8 10-1/2 7/64 7/32 21/647/16 35/64 21/32 7/8 10-5/8 10-3/4 43/64 10-7/8 29/64 29/6411- 11/64 11/32 11/16 11-1/8 11-1/4 15/64 15/32 45/64 15/1611-3/8 11-1/2 23/64 23/32 11-5/8 31/64 31/3211-3/4 47/64 11-7/8 12- 1/32 1/16 3/32 1/8 3/16 1/4 3/8 1/2 5/8 3/4 1