Canvas Scaling Calculator
Find out how to scale a photo or drawing onto your canvas. Enter the original size and your canvas size to get the scale factor, the size of each grid square on the canvas, and a heads-up if the proportions need cropping.
- Free
- No signup
- No watermark
- Browser-based
Measurements
Original image
Canvas
Result
Transfer instructions
Draw a 8×10 grid on both, then copy one square at a time. Each canvas square is 2 in (in).
How to use the canvas scaling calculator
- 1
Enter your original image width and height.
- 2
Enter the canvas width and height.
- 3
Choose the number of columns — rows stay square.
- 4
Read the scale and download the instructions.
Features
- Scale factor from image to canvas
- Grid square size on the canvas
- Square cells kept proportional automatically
- Crop / margin warning on aspect mismatch
- Downloadable transfer instructions PDF
Great for
- Transferring a photo onto canvas
- Sizing a drawing up or down
- Choosing a canvas that fits your reference
- Planning a grid transfer
Frequently asked questions
How do I scale a photo to canvas size?+
Enter the photo's dimensions and the canvas dimensions. The calculator gives you the scale factor and the size of each grid square on the canvas so you can transfer the image accurately.
What if the photo and canvas are different shapes?+
When the proportions differ, the calculator warns you. Crop the photo to the canvas shape, or leave a margin, so the grid squares line up.
Why keep the squares square?+
Square cells keep the grid method accurate. The calculator derives the number of rows from your columns so each cell stays proportional.