Free Gallery Wall Calculator
Find the perfect spacing and position for any picture frame arrangement.
Grid layout
What is a gallery wall calculator?
A gallery wall calculator is a free online tool that helps you plan the layout and spacing for a gallery wall of frames on any wall size. It runs entirely in your browser — no signup, no app, and no data is ever sent to a server.
A gallery wall calculator helps you plan the spacing and position of picture frames, art prints, and photo grids on any wall. Instead of measuring and marking each frame individually (and making holes in the wrong place), you enter the room and frame dimensions once and get the exact position for every frame. The key metric is equal spacing between frames — 2-4 inches is the professional standard.
How it works
The calculator subtracts total frame width/height from wall width/height, divides by (rows/columns + 1) for equal gaps, and positions the arrangement with its center at your desired eye level (57-60 inches standard). Start position = gap distance from each wall edge.
When to use a gallery wall calculator
Before hammering any nails into the wall. Planning a photo wall in a living room, hallway, or stairwell. Designing a grid of art prints for a modern look. Arranging a salon-style gallery (optional non-grid mode coming). The calculator saves you from measuring errors, misaligned frames, and unnecessary wall repairs.
Common mistakes with gallery walls
The most common gallery wall mistake is inconsistent spacing between frames. I see people space the first two frames 3 inches apart, then 2 inches, then 4 inches, and the whole arrangement looks chaotic even though each frame is perfectly hung. Professional galleries use identical spacing between every frame — 2-3 inches is standard. The second mistake is hanging frames too high. The center of the arrangement should be at eye level, which is 57-60 inches from the floor, not the top of the first frame. Most people hang art too high because they look at the top edge instead of the center. Third, people forget to account for furniture placement. A gallery wall that looks balanced in an empty room will feel cramped once a sofa or console table is in place. Plan your gallery wall with the furniture already positioned, or leave 6-8 inches above the furniture as a visual buffer.
Another mistake I notice frequently: mixing frame styles arbitrarily. A grid of identical frames with matching mats looks clean and intentional. When you mix frame colors, widths, and mat sizes, the visual clutter can overwhelm the wall and the art itself. If you want an eclectic look, limit yourself to two frame styles and keep the spacing uniform.
How to use this calculator
- Enter wall dimensions — Input your wall width and height, plus the center height (57-60 inches typical).
- Enter frame sizes — Input each frame's width and height, or set them all the same size.
- Read the layout — See spacing, starting position, and center point for your gallery wall.
Frequently asked questions
How do I space picture frames on a gallery wall?
Standard gallery spacing is 2-4 inches between frames. For a grid layout: subtract the total width of all frames from the wall width, divide by (number of frames + 1) for equal gaps. Same for height. The calculator accepts any number of frames and computes exact positions for a centered grid.
What is the best height to hang a gallery wall?
The center of the gallery arrangement should be at eye level: 57-60 inches from the floor (standard museum height). If you're hanging a single piece, the center goes at 57-60 inches. For a multi-frame gallery, position the overall arrangement so its centerline hits 57-60 inches.
How do I center a group of pictures on a wall?
Measure the total width of all frames plus their gaps. Subtract from the wall width, divide by 2. This gives the distance from the left edge of the wall to the left edge of the first frame. Apply the same vertical centering for balanced placement. The calculator does this automatically.
What measurements do I need for a gallery wall?
Wall dimensions (width and height), each frame's width and height, and the desired spacing between frames. The calculator computes: horizontal and vertical gaps, starting position from wall edges, and the exact center point of the arrangement. It works for rectangular grids, rows, or columns.
How do I plan a multi-row gallery wall?
Decide the number of rows and columns. All frames in a grid should be evenly spaced both horizontally and vertically. Use equal gap sizes for the most professional look. The calculator handles up to 6 × 6 grids and shows the exact position of every frame.
Should all frames in a gallery wall be the same size?
A grid with all identical frames creates a clean, modern look. A salon-style arrangement with different frame sizes works well for a more casual, collected-over-time aesthetic. The rule for mixed sizes: align the centers (not the edges) of different-sized frames, and keep the visual weight balanced across the wall.