Pixels, inches and DPI: the print size calculator
At 300 DPI you need 300 pixels per inch: a US Letter page takes 2550 × 3300 pixels. Enter your image size or your print size and the math happens on its own.
How big can I print my image?
Its pixel dimensions, or the image itself.
Sharp print size
How many pixels do I need?
Pick a format or enter your own size.
Pixels needed
Is it a logo? Vectorize it for free: with no pixels left, it prints sharp at any size, this one included. 100% free, no account.
Does your printer want a vector file? Vectorizing it is 100% free.
Is it a photo? Vectorizing would turn it into an illustration. To enlarge it and keep it photographic, see how to upscale an image without losing quality.
Your logo sharp at any size, 100% free
Free, no account, no watermark, no card. Drop your logo and the full-size result appears in about ten seconds, ready to zoom in on. By email, you get the SVG and the print pack.
Vectorizing your logo…
Our server does the work, not your device. Stay right here, it’s quick.
- Upscaling, if the image is too small Up next
- Removing the background Up next
- Redrawing the outlines as curves Up next
About 10 seconds 0 s
This is taking a little longer than usual, but it’s moving. Please stay on the page.
Sharp.
Zoom in: the edges stay smooth at any print size.
Your image was small, so it was upscaled automatically before vectorizing. The shapes were rebuilt: check that the result stays true to your logo.
Your SVG arrives by email, with the print pack
One email with everything inside, 100% free: your vectorized logo and the formats printers ask for.
- Your vectorized SVG, sharp at any size
- 2000 px PNG, transparent background, for web and social media
- Single-colour version, engraving, stamps, embroidery
- Negative version, for dark backgrounds
- The print guide, which file to send for each medium
Sent.
Your attachments are ready to forward.
One last check: tick the box just below to start the conversion.
Pixels needed for common print sizes
| Format | Size | 300 dpi | 150 dpi |
|---|---|---|---|
| A6 | 4.1 × 5.8 in | 1240 × 1748 | 620 × 874 |
| A5 | 5.8 × 8.3 in | 1748 × 2480 | 874 × 1240 |
| A4 | 8.3 × 11.7 in | 2480 × 3508 | 1240 × 1754 |
| A3 | 11.7 × 16.5 in | 3508 × 4961 | 1754 × 2480 |
| A2 | 16.5 × 23.4 in | 4961 × 7016 | 2480 × 3508 |
| Business card (85 × 55 mm) | 3.3 × 2.2 in | 1004 × 650 | 502 × 325 |
| 4 × 6 in photo | 3.9 × 5.9 in | 1181 × 1772 | 591 × 886 |
| Poster 40 × 60 cm | 15.7 × 23.6 in | 4724 × 7087 | 2362 × 3543 |
| US Letter | 8.5 × 11 in | 2550 × 3300 | 1275 × 1650 |
Every paper size in pixels, from business cards to 24 × 36 posters: the full table.
The formula
Pixels = size in inches × DPI. The other way round, size in inches = pixels ÷ DPI. For centimeters, divide by 2.54 first: 300 DPI means 300 pixels per inch.
To understand why printers ask for 300 DPI and when 150 is enough, read our 300 DPI guide.
Frequently asked questions
How many pixels is 1 inch?
It depends on the print resolution: 1 inch takes 72 pixels at 72 DPI, 150 at 150 DPI and 300 at 300 DPI. One centimeter is about 28, 59 and 118 pixels at those same resolutions.
How do I convert pixels to inches?
Divide the pixel count by the DPI. For example, 1,200 pixels at 300 DPI print 4 inches wide. For centimeters, multiply the inches by 2.54. The calculator at the top does it for width and height.
How many pixels for a US Letter page at 300 DPI?
2,550 × 3,300 pixels. At 150 DPI you need 1,275 × 1,650. An A4 page at 300 DPI takes 2,480 × 3,508 pixels.
72 or 300 DPI: which one?
On screen, the DPI value changes nothing: only the pixel count matters. For print read up close (flyer, business card, Letter page), aim for 300 DPI. For a poster seen from more than a few feet away, 150 DPI is often enough.
What about a logo?
A vector logo skips this math: it has no pixels and prints sharp at any size. If all you have is a small PNG or JPG, vectorize it for free further down this page.
Logo too small? Vectorize it for free
A vector logo has no pixels: it prints sharp at any size, from a business card to a banner. The conversion is free and takes about ten seconds.
Vectorize my logo for free