🖼️ Canvas Size Calculator
Aspect ratio and dimensions for any canvas
About this calculator
The Canvas Size calculator helps artists plan paintings around standard and custom canvas dimensions. Enter your desired width and height, or pick from standard sizes; it returns the area, aspect ratio, and diagonal so you can compare formats. Knowing the exact square footage also feeds directly into pricing and material estimates for commissions.
Tip: decide the size before sketching — compositions designed for one aspect ratio rarely transplant cleanly to another, and restretching a finished piece wastes both canvas and time.