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Calcimator

Canvas Size Calculator

Canvas dimensions from golden ratio and standard sizes.

Inputs

in
in
in

Results

Surface Area

320 sq in

≈ 3 sheets of paper

Surface Area2.22 sq ft
Aspect Ratio0.8
Golden Ratio Width32.36 in
Golden Ratio Height9.89 in
Stretcher Bar Length72 in
Fabric per Canvas621 sq in
Total Fabric Needed4.31 sq ft
How to Use This Calculator
  1. Enter Canvas Width, Canvas Height, and Stretcher Depth.
  2. Set Number of Canvases.
  3. Review the Surface Area (sq in) result.
  4. Use Surface Area (sq ft) and Aspect Ratio to inform your decision.

How the result changes with Canvas Width

Canvas WidthSurface Area
13260 sq in
43860 sq in
781,560 sq in
1082,160 sq in

What each input means

Canvas Width
Desired canvas width in inches.
Canvas Height
Desired canvas height in inches.
Stretcher Depth
Stretcher bar depth. Gallery wrap is typically 1.5 in, standard is 0.75 in.
Number of Canvases
How many canvases to prepare.

What each result means

Surface Area
Paintable face area per canvas.
Surface Area
Paintable face area in square feet.
Aspect Ratio
Width-to-height ratio of the canvas.
Golden Ratio Width
Width to achieve golden ratio (1.618) with the given height.
Golden Ratio Height
Height to achieve golden ratio with the given width.
Stretcher Bar Length
Total linear inches of stretcher bar needed.
Fabric per Canvas
Raw canvas fabric needed per canvas including wrap and staple allowance.
Total Fabric Needed
Total fabric for all canvases in square feet.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Canvas Width = 16, Canvas Height = 20, Stretcher Depth = 1.5, Number of Canvases = 1 = 4 input(s) provided
  2. Calculate Surface Area
    Surface Area = width * height
    320 = 320
  3. Calculate Surface Area
    Surface Area = surfaceAreaSqIn / 144
    2.22 = 2.22
  4. Calculate Aspect Ratio
    Aspect Ratio = width / height
    0.8 = 0.8

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