Width (in)
15.75
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Canvas Size Chart (CM to Inches + Calculator)
Choosing the right canvas size matters for composition, framing, and print quality. This page helps you convert canvas dimensions between centimeters and inches, compare common studio sizes, and quickly check aspect ratios before you start painting. Whether you are a beginner practicing proportions or an experienced artist planning a series, the chart and calculator below make size decisions faster and more accurate.
Canvas Size Converter
Convert canvas sizes between centimeters and inches instantly. Enter width and height, then review the converted values, aspect ratio, and print size estimate.
Height (in)
19.69
Width (cm)
40
Height (cm)
50
Aspect Ratio
4:5
Print Equivalent
4724 x 5906 px at 300 DPI
Standard Canvas Sizes
This standard canvas size chart lists common dimensions in inches and centimeters plus the most-used aspect ratios.
| Inches | CM | Ratio |
|---|---|---|
| 8 x 10 | 20 x 25 | 4:5 |
| 9 x 12 | 23 x 30 | 3:4 |
| 11 x 14 | 28 x 36 | 11:14 |
| 12 x 16 | 30 x 40 | 3:4 |
| 16 x 20 | 40 x 50 | 4:5 |
| 18 x 24 | 45 x 60 | 3:4 |
| 20 x 24 | 50 x 60 | 5:6 |
| 24 x 30 | 60 x 76 | 4:5 |
| 24 x 36 | 60 x 90 | 2:3 |
| 30 x 40 | 76 x 102 | 3:4 |
| 36 x 48 | 91 x 122 | 3:4 |
Aspect Ratios Explained
Aspect ratio is the proportional relationship between width and height. A 1:1 ratio is square, 4:5 is common for portraits, and 3:2 or 2:3 works well for landscape compositions. Understanding ratios helps you crop reference images correctly and choose frames that fit your artwork without losing key details.
Square
Ratio: 1:1
Portrait
Ratio: 4:5
Landscape
Ratio: 3:2
Common Questions
What is 16x20 in cm?
16 x 20 inches is about 40.64 x 50.8 cm, often rounded to 40 x 50 cm in standard canvas charts.
What ratio is 24x36?
24 x 36 reduces to 2:3, a classic landscape-friendly ratio used in photography and large-format painting.
What is 18x24 in cm?
18 x 24 inches is about 45.72 x 60.96 cm, commonly rounded to 45 x 60 cm on standard charts.
What ratio is 16x20?
16 x 20 simplifies to 4:5, which is one of the most popular portrait-oriented canvas ratios.
Related Artist Tools
After selecting your canvas dimensions, use our image and ratio tools to make sure your composition and print setup stay consistent.