LED Wall Calculator - Resolution, Pixel Pitch & Viewing Distance

How do you calculate LED wall resolution from size?

LED displays don't use DPI. They use pixel pitch, the distance in millimeters between the centers of two neighboring LEDs. The formula is pixels = feet x 304.8 / pitch, since one foot is 304.8 millimeters. A 10 ft wide wall at P2.5 is about 1,219 pixels wide, and a matching 6 ft tall section is roughly 731 pixels tall, so the canvas is near 1,219 x 731.

That pixel count is what your media server, scaler, or playback PC actually renders. If you're building content, you'll want it to match the native canvas so nothing gets stretched or interpolated. The calculator above does the multiplication and division for both axes at once, so you don't have to keep a phone calculator handy on site.

Here's the 2026 context that's reshaping the fine-pitch end of the market. Micro-COB (chip-on-board) and flip-chip packaging now push commercial walls down to P0.7 and even P0.4, where pixels sit less than a millimeter apart. At those pitches a single 10 ft wide wall clears 4,300 pixels across, so a modest 16 ft x 9 ft conference wall renders past 4K natively. Most pitch charts still stop at P1.2, but the calculator handles these sub-millimeter values cleanly, which gives early adopters a real planning edge.

LED wall resolution chart by pixel pitch

Pixels across a 10 ft wide wall at common pitches, with the 10x-rule viewing distance. Read down the column that matches your panels. Notice how the pixel count more than doubles from P2.5 to P1.2, which is why fine-pitch walls carry so much more processing load and cost.

How to use the LED wall calculator

1. Enter the wall width and height in feet.
2. Select the pixel pitch of your panels, from P1.2 to P10.
3. Read the pixel resolution, panel count, megapixels and viewing distance, then copy the result.

If you're quoting a job, the panel count and megapixel figure are the numbers that drive cost. More megapixels mean more processing and more cabinets, so they're worth checking before you price the install. For the sizing inputs, our feet to pixels tool covers sizing an LED wall in feet from the ground up.

The calculator also estimates how many cabinets you'll need. It divides your wall dimensions by a standard 500 mm cabinet and rounds up, because you can't buy a fraction of a panel. That panel count tells you how many receiving cards, power feeds and data runs the job needs, so it isn't just a vanity number. If your supplier uses 600 mm cabinets, the count drops a little, but the megapixel total stays the same, since it's set by pitch and physical size, not by how the wall is split into modules.

What pixel pitch should you choose?

Match pitch to viewing distance with the 10x rule: pitch in millimeters times 10 is the comfortable minimum viewing distance in feet. Fine pitches like P1.2 to P1.5 suit lobbies and control rooms, while coarser pitches like P6 to P10 suit stadiums and outdoor signage. The table below pairs each pitch with the room it fits, so you can match your space fast.

Don't overspend on pitch you can't see. If the closest viewer stands 25 feet back, a P2.5 wall already looks pixel-perfect, and a P1.5 upgrade just burns budget. The pixel pitch guide goes deeper on how pitch, resolution and budget trade off.

Pixel pitch vs DPI - what's the difference?

People mix these up all the time, and it'll cost you a reprint or a blurry wall if you do. Pixel pitch is a physical LED spacing, while DPI is a print density. They measure different things, so here's how they line up side by side.

For LED walls you size by pitch, not DPI. For a printed banner you'd use banner sizes in pixels with a DPI value instead, since print and LED don't share a sizing model. The quick rule of thumb is this: if light comes out of it, think pitch; if ink goes onto it, think DPI. Mixing them is the single most common sizing mistake we see, and it's the one that wastes the most money.

Ready to size your wall?

Scroll back to the tool, drop in your width and height in feet, and pick your panel's pitch. You'll get the native pixel canvas, the panel count, the megapixel load and the 10x-rule viewing distance in one pass, so you can quote, spec and brief your content team from a single screen. It's free, there's no sign-up, and the numbers are the same ones your processor will use on show day.

Frequently asked questions

How do you calculate LED wall resolution from size?

Multiply the size in feet by 304.8 and divide by the pixel pitch in millimeters: pixels = feet x 304.8 / pitch. A 10 ft wide wall at P2.5 is about 1,219 pixels wide, so you'll get a clean canvas number for your content team.

What pixel pitch should I choose?

Use the 10x rule: pixel pitch in mm times 10 gives a comfortable minimum viewing distance in feet. A P3.9 wall looks sharp from about 39 feet, while P1.5 suits close viewing where you're standing a few feet away.

Is a higher pixel pitch better?

No. A lower pixel pitch means LEDs sit closer together, so you'll get a finer, sharper image for close viewing. Higher pitch suits walls seen from far away and costs less, because there're fewer LEDs per square meter.

How many panels does an LED wall need?

Divide your wall width and height by the panel size, then round up. Most cabinets are 500 mm or 600 mm square, so a 10 ft (3,048 mm) wide wall needs about 6 panels of 500 mm across. The calculator counts them for you.

What is the difference between pixel pitch and DPI?

Pixel pitch measures the physical gap between LEDs on a display, in millimeters. DPI measures pixel density for print and screens. LED walls are specified by pitch, not DPI, so don't mix the two when you're sizing content.

Does pixel pitch affect brightness or refresh rate?

Not directly. Brightness comes from the LED diodes and driver ICs, and refresh rate comes from the receiving card. But finer pitches pack more LEDs in, so they're usually pricier per square meter even at the same nit rating.