Hoarding on a building site
The order says six meters wide. At 50 DPI the file comes to 11,811 pixels, at 100 DPI twice that. You pick the density from how close people walk past.
Convert meters to pixels at any DPI
One meter is 3,780 pixels at 96 DPI and 11,811 pixels at 300 DPI. Enter the size in meters, set the density and see how many pixels the file needs. This is the sum that opens every large-format job, and the density follows the viewing distance.
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What is converting meters to pixels for?
Meters turn into pixels with one operation: multiply the size by DPI and divide by 0.0254. One meter gives 3,780 pixels at 96 DPI, 5,906 pixels at 150 DPI and 11,811 pixels at 300 DPI. The figure of 96 pixels per inch is what the CSS specification assigns to a screen [1].
This direction runs the whole of large-format work. British print buyers quote banners, billboards and wall graphics in meters, while the design software asks for a pixel count. The density field sits next to the size field because it decides how many pixels make up one meter.
American print shops quote the same panels in feet, so a job crossing the Atlantic arrives in one unit and gets made in the other. Both roads end at the same pixel count.
Below you will find a table of 24 sizes at four densities, where the DPI recommendations for large format come from, acuity thresholds for twelve viewing distances, and UK outdoor formats converted to pixels. The journey the other way is handled by the pixels to meters converter.
How to work out meters to pixels by hand
The formula holds one operation: pixels = meters × DPI ÷ 0.0254. The number 0.0254 is the length of an inch in meters, because an inch is exactly 25.4 millimeters.
Take a banner three meters wide at 100 DPI: 3 × 100 ÷ 0.0254 comes to 11,811 pixels. The same banner at 150 DPI needs 17,717 pixels, half as many again.
Hence the rule for reading the result: the pixel count rises in direct proportion to density. Doubling the DPI doubles the width of the file, and the pixel count rises fourfold because both edges multiply.
At smaller sizes the same sum is handled by the centimeters to pixels converter and the millimeters to pixels converter. When the job is quoted in feet or inches, the inches to pixels converter takes it from there.
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How many pixels are in a size given in meters?
| Size | 72 DPI | 96 DPI (screen) | 150 DPI | 300 DPI (print) |
|---|---|---|---|---|
| 0.25 m | 709 px | 945 px | 1,476 px | 2,953 px |
| 0.5 m | 1,417 px | 1,890 px | 2,953 px | 5,906 px |
| 0.75 m | 2,126 px | 2,835 px | 4,429 px | 8,858 px |
| 1 m | 2,835 px | 3,780 px | 5,906 px | 11,811 px |
| 1.2 m | 3,402 px | 4,535 px | 7,087 px | 14,173 px |
| 1.5 m | 4,252 px | 5,669 px | 8,858 px | 17,717 px |
| 1.8 m | 5,102 px | 6,803 px | 10,630 px | 21,260 px |
| 2 m | 5,669 px | 7,559 px | 11,811 px | 23,622 px |
| 2.38 m | 6,746 px | 8,995 px | 14,055 px | 28,110 px |
| 2.5 m | 7,087 px | 9,449 px | 14,764 px | 29,528 px |
| 3 m | 8,504 px | 11,339 px | 17,717 px | 35,433 px |
| 3.5 m | 9,921 px | 13,228 px | 20,669 px | 41,339 px |
| 4 m | 11,339 px | 15,118 px | 23,622 px | 47,244 px |
| 4.5 m | 12,756 px | 17,008 px | 26,575 px | 53,150 px |
| 5 m | 14,173 px | 18,898 px | 29,528 px | 59,055 px |
| 5.04 m | 14,287 px | 19,049 px | 29,764 px | 59,528 px |
| 6 m | 17,008 px | 22,677 px | 35,433 px | 70,866 px |
| 7 m | 19,843 px | 26,457 px | 41,339 px | 82,677 px |
| 8 m | 22,677 px | 30,236 px | 47,244 px | 94,488 px |
| 9 m | 25,512 px | 34,016 px | 53,150 px | 106,299 px |
| 10 m | 28,346 px | 37,795 px | 59,055 px | 118,110 px |
| 12 m | 34,016 px | 45,354 px | 70,866 px | 141,732 px |
| 15 m | 42,520 px | 56,693 px | 88,583 px | 177,165 px |
| 20 m | 56,693 px | 75,591 px | 118,110 px | 236,220 px |
The 72 DPI column covers print viewed from a distance, 96 DPI matches the screen density in the CSS standard, 150 DPI suits material read from a few meters away, and 300 DPI is sheet-fed print density.
Where do the DPI recommendations for large format come from?
Density follows the distance people stand at. Visual acuity has a measure: the 20/20 standard described by Snellen assumes an eye that separates detail one arcminute apart, which works out to 60 pixels per degree of the visual field [2].
Everything else follows from that one number. At one meter an arcminute covers 0.0115 of an inch, so about 87 pixels fall on each inch. At two meters the threshold drops to 44 pixels per inch, at five meters to 17, and at twenty meters to 4.
A measurement published in 2024 raises that ceiling. The authors put the resolution limit of the eye at 94 pixels per degree for a black-and-white pattern, with individual observers reaching 120 [2]. At one meter that comes to roughly 137 pixels per inch.
The table below gives both thresholds for twelve distances. The higher of the two marks the density above which the eye stops seeing a difference, so you can pick DPI for the place the work will hang and check that size in the converter above.
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How many pixels per inch can you see from a given distance?
| Viewing distance | Threshold at the 20/20 standard | Threshold at the 2024 measurement |
|---|---|---|
| 0.5 m | 175 PPI | 274 PPI |
| 1 m | 87 PPI | 137 PPI |
| 1.5 m | 58 PPI | 91 PPI |
| 2 m | 44 PPI | 68 PPI |
| 3 m | 29 PPI | 46 PPI |
| 5 m | 17 PPI | 27 PPI |
| Viewing distance | Threshold at the 20/20 standard | Threshold at the 2024 measurement |
|---|---|---|
| 8 m | 11 PPI | 17 PPI |
| 10 m | 9 PPI | 14 PPI |
| 15 m | 6 PPI | 9 PPI |
| 20 m | 4 PPI | 7 PPI |
| 30 m | 3 PPI | 5 PPI |
| 50 m | 2 PPI | 3 PPI |
The first column comes from the clinical 20/20 standard, one arcminute. The second from a measurement published in 2024 that gave 94 pixels per degree for a black-and-white pattern [2]. Both mark the threshold above which the eye stops seeing a difference.
How many pixels are in the standard UK outdoor formats?
| Format | 50 DPI | 100 DPI | 150 DPI |
|---|---|---|---|
| 6-sheet (1.2 × 1.8 m) | 2,362 × 3,543 px | 4,724 × 7,087 px | 7,087 × 10,630 px |
| 48-sheet (6.096 × 3.048 m) | 12,000 × 6,000 px | 24,000 × 12,000 px | 36,000 × 18,000 px |
| 96-sheet (12.192 × 3.048 m) | 24,000 × 6,000 px | 48,000 × 12,000 px | 72,000 × 18,000 px |
| Banner 2 × 1 m | 3,937 × 1,969 px | 7,874 × 3,937 px | 11,811 × 5,906 px |
| Banner 3 × 1 m | 5,906 × 1,969 px | 11,811 × 3,937 px | 17,717 × 5,906 px |
| Banner 4 × 2 m | 7,874 × 3,937 px | 15,748 × 7,874 px | 23,622 × 11,811 px |
| Banner 6 × 2 m | 11,811 × 3,937 px | 23,622 × 7,874 px | 35,433 × 11,811 px |
The 6-sheet, 48-sheet and 96-sheet dimensions come from an outdoor media owner [3]. The metric figures look awkward because the underlying grid is imperial: a 48-sheet is exactly 20 by 10 feet and a 96-sheet exactly 40 by 10 feet. The remaining rows are banner sizes that come up in orders.
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When is converting meters to pixels useful?
A 48-sheet in a campaign
The panel is 6.096 meters wide. At 50 DPI that gives 12,000 pixels, a file that opens on an ordinary machine without special handling.Wall graphics in an office
The wall runs four meters and people pass a meter from it. The threshold table gives 137 pixels per inch, so the file needs about 21,575 pixels across.Talking to the printer
The printer states a size in meters and a density in DPI. The converter turns that into the single number you type into the new document dialogue.
Convert other units to Pixels
Convert Meters to other units
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Sources
- CSS Values and Units Module Level 4 — W3C
- Resolution limit of the eye: how many pixels can we see? — Ashraf, Chapiro, Mantiuk, 2024
- Billboard sizes, dimensions and specs — Bauer Media Outdoor
Every figure in the tables was computed from the unit definitions and checked arithmetically before publication. Historical values and the names of local units come from the sources listed above.
Content last reviewed: · written and checked by the Arteon team
Frequently asked questions
How many pixels are in a meter?
At 96 DPI a meter is 3,780 pixels. At 72 DPI it is 2,835 pixels, at 150 DPI 5,906 and at 300 DPI 11,811. The pixel count in a meter follows from the density you set, because a pixel takes on a physical size only alongside it.
What resolution should a banner be?
It depends on the distance it will be read from. At three meters the eye separates 29 to 46 pixels per inch, so a density in that range is enough. The closer people walk, the higher you set the DPI.
How many pixels are in a 48-sheet billboard?
A 6.096 × 3.048 meter panel is 12,000 × 6,000 pixels at 50 DPI, 24,000 × 12,000 pixels at 100 DPI and 36,000 × 18,000 pixels at 150 DPI.
Can I enter a size with a decimal point?
Yes. The field takes fractional values, so 6.096 meters goes in exactly as written and the converter works with the full precision.
Why does the formula divide by 0.0254?
Because an inch is exactly 25.4 millimeters, that is 0.0254 of a meter. Dividing by that turns meters into inches, and multiplying by DPI turns inches into pixels.
Does a higher DPI always give a better print?
Up to the threshold of visibility it does, and above it only the file size grows. From twenty meters the eye separates 4 to 7 pixels per inch, so 300 DPI on a billboard produces a file many times heavier for the same result.
My printer quotes in feet. What then?
One foot is 0.3048 meters, so a 20-foot panel is 6.096 meters. You can also work in the imperial unit directly with the inches to pixels converter.
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