5 free tools
Framing calculators and planners
Work out what you need before you spend anything. No account, no sign-up, and every calculation happens in your browser — nothing you type is sent anywhere or stored.
- Calculator
Aspect ratio calculator
Free aspect ratio calculator: solve any missing dimension, simplify the ratio, convert inches to cm, and see every standard frame size that fits without cropping.
Open the tool → - Calculator
Picture hanging height calculator
Work out exactly where the nail goes. Enter your frame height and hanger drop and get the fixing height, plus the correct gap above a sofa or sideboard.
Open the tool → - Calculator
Print resolution and DPI calculator
Check whether your file is sharp enough to print. Enter the pixel dimensions and print size to get the effective DPI, a quality verdict, and your largest usable print.
Open the tool → - Calculator
Frame depth and rabbet calculator
Add up glazing, mats, artwork and backing to find the rabbet depth your frame actually needs — and see whether the frame you are looking at will close.
Open the tool → - Calculator
Gallery wall planner
Plan a gallery wall to scale. Choose a frame size, grid and spacing, then get the total wall area, a scale drawing and the exact nail position for every frame.
Open the tool →
Which tool do you need?
Framing decisions come in a fixed order, and each tool answers one step of it.
Start with shape. Before anything else, check that your image and your intended print size are the same proportion — the aspect ratio calculator lists every standard frame that fits your file without cropping.
Then check sharpness. The print resolution calculator tells you whether the file has enough pixels for the size you want, and what your largest usable print is.
Then check the frame will close. The frame depth calculator adds up glazing, mats, artwork and backing against the rabbet depth of the frame you are considering.
Then plan the wall. The gallery wall planner lays out a grid to scale and gives you a hook position for every frame, and the hanging height calculator tells you exactly where the nail goes for a single piece.