Inches to Pixels Converter
Enter a measurement in inches and get the pixel count at whatever resolution you are working to. The conversion runs both ways, so you can turn inches into px or px back into inches without reloading.
Type in either field — the other one follows instantly.
How to convert inches to pixels
Multiply the length in inches by the pixel density you are targeting: pixels = inches × PPI. At the CSS standard of 96 PPI, 1 inch is 96 pixels. At the 300 DPI print standard the same inch is 300 pixels.
The density is the part that changes the answer, so decide it first. Screen and web work uses 96 PPI, photo printing uses 300 DPI, and large posters viewed from a distance are usually fine at 150 DPI.
Worked with the values in the calculator above
inches = 2,550 px ÷ 300 PPI = 8.5 in
pixels = 8.5 in × 300 PPI = 2,550 px Which resolution should you convert at?
For anything held in the hand, convert inches to pixels at 300 DPI. For a poster on a wall, 150 DPI halves the pixel count with no visible loss at normal viewing distance. For CSS layout work, use 96 — that is the reference inch the specification defines, not a measurement of your monitor.
Reference table
| Inches | 72 DPI | 96 DPI | 150 DPI | 300 DPI | 600 DPI |
|---|---|---|---|---|---|
| 0.5 in | 36 | 48 | 75 | 150 | 300 |
| 1 in | 72 | 96 | 150 | 300 | 600 |
| 2 in | 144 | 192 | 300 | 600 | 1,200 |
| 3 in | 216 | 288 | 450 | 900 | 1,800 |
| 4 in | 288 | 384 | 600 | 1,200 | 2,400 |
| 5 in | 360 | 480 | 750 | 1,500 | 3,000 |
| 6 in | 432 | 576 | 900 | 1,800 | 3,600 |
| 8 in | 576 | 768 | 1,200 | 2,400 | 4,800 |
| 8.5 in | 612 | 816 | 1,275 | 2,550 | 5,100 |
| 10 in | 720 | 960 | 1,500 | 3,000 | 6,000 |
| 11 in | 792 | 1,056 | 1,650 | 3,300 | 6,600 |
| 17 in | 1,224 | 1,632 | 2,550 | 5,100 | 10,200 |
Frequently asked questions
How many pixels is 1 inch?
It depends on the resolution. One inch is 96 pixels at the CSS standard, 300 pixels at the print standard and 72 pixels under the legacy Macintosh convention.
Why is 1 inch 96 pixels in CSS but 192 on a Retina display?
CSS fixes the inch at 96 px regardless of hardware. A display with a device pixel ratio of 2 draws each of those with four physical pixels, so the same inch is 192 device pixels across — the layout does not change, only the sharpness.
How many pixels is 8.5 x 11 inches?
A US Letter page is 2550 × 3300 pixels at 300 DPI, 1275 × 1650 pixels at 150 DPI and 816 × 1056 pixels at 96 PPI.
Is inches to pixels the same as inches to px?
Yes. px is simply the abbreviation for pixel, so in to px and inches to pixels describe the same conversion.
How do I convert a fraction of an inch to pixels?
Turn the fraction into a decimal first, then multiply. A quarter inch is 0.25, so 0.25 × 300 = 75 pixels at 300 DPI. An eighth of an inch is 0.125, giving 37.5 pixels, and 8 1/2 inches is 8.5, giving 2550. The calculator above takes decimals directly.
Why does the same inch give different pixel counts?
Because a pixel has no fixed physical size. The pixel density you choose decides how many pixels fill one inch, which is why the DPI field changes every result on this page.