--- title: "Pixels to Inches Converter at Any DPI" description: "Free pixels to inches converter: pixels to inches, cm and mm, or inches to pixels, at 72, 96, 150, 300 or any DPI, with print-on-demand presets." url: https://podly.co/tools/pixels-to-inches/ --- [Free tools](https://podly.co/tools/) [Design & print](https://podly.co/tools/#design-and-print) # Pixels to inches and back, at any DPI Convert pixels to inches, or inches to pixels. Type a width and height in pixels, inches, cm or mm, pick the DPI, and see the size in every unit. - Free - No signup needed - Merch sizes checked November 2026 Start from a print-on-demand size Convert from Width Height (optional) Resolution (DPI) Use 300 DPI for print files and 96 for screens. Inches, cm and mm convert at a fixed rate; pixels depend on the DPI. From pixels · 300 DPI Size in inches 15 × 18 in 4,500 × 5,400 px at 300 DPI 1. Pixels at 300 DPI 4,500 × 5,400 px 2. Inches 15 × 18 in 3. Centimeters 38.1 × 45.72 cm 4. Millimeters 381 × 457.2 mm **Same pixels at 300 DPI** 15 × 18 in Print quality **Same pixels at 150 DPI** 30 × 36 in Fine from a distance **On screen (96 px per inch)** 46.88 × 56.25 in CSS inch on the web **Aspect ratio** 5:6 Width : height ## How we calculate this A pixel has no physical size until you print it. The DPI (dots per inch) says how many pixels go into one printed inch, so inches are pixels divided by the DPI. Centimeters and millimeters follow from the inch, which is exactly 2.54 cm. **Pixels to inches** inches = pixels ÷ DPI **Inches to pixels** pixels = inches × DPI **Inches to cm and mm** 1 in = 2.54 cm = 25.4 mm Screen sizes use the CSS inch of 96 pixels from the W3C's CSS units standard. Print-on-demand presets come from Amazon Merch on Demand's product templates, checked on November 14, 2026. ![Podly Design templates: T-shirt designs from best-selling niches, sorted by style, interest, holiday and season](https://podly.co/images/home-v2/tab-design-1400.webp) Podly Design In Podly The file is ready. Is the design? Podly shows which Merch designs sell, with their rank, sales and price, so you design for a niche with real demand. [Start free](https://app.podly.co/register?utm_source=podly.co&utm_medium=website&utm_content=pixels_to_inches) Free plan · No credit card ## How to convert pixels to inches 1. Pick what you start from: pixels, inches, cm or mm. Switching keeps the same size and converts your numbers. 2. Type the width, and the height if you want both. 3. Pick the DPI: 300 for print, 150 for large prints seen from a distance, 96 or 72 for screens, or your own. Or start from a print-on-demand size. The presets are the artwork sizes of Amazon's [Merch on Demand product templates](https://merch.amazon.com/resource/Y28FFE5NLRYJG4V): 4500 × 5400 px for t-shirt, sweatshirt, hoodie back, 4500 × 4050 px for hoodie front, 2925 × 2925 px for tote bag, throw pillow, 2700 × 1050 px for mug, 1800 × 3200 px for iphone case, 485 × 485 px for popsockets grip. ## The formula **Inches = pixels ÷ DPI**, and **pixels = inches × DPI**. For centimeters, multiply inches by 2.54; for millimeters, by 25.4. Example: the Merch T-shirt file is 4500 × 5400 px. At 300 DPI that is 4500 ÷ 300 = 15 inches wide and 5400 ÷ 300 = 18 inches tall, or 38.1 × 45.72 cm. Amazon's [Merch design best practices](https://merch.amazon.com/resource/201849250) ask you to "create the files at 100% of the print dimensions at 300 DPI", and note that while you can use the full 15-inch width, keeping your design to 12 inches or less centers better on the shirt. On screens, the [CSS standard](https://www.w3.org/TR/css-values-4/#absolute-lengths) fixes 1 inch at 96 pixels. ## Pixels to inches at 96 and 300 DPI | Pixels | Inches at 96 DPI | Inches at 300 DPI | cm at 300 DPI | | --- | --- | --- | --- | | 100 px | 1.04 in | 0.33 in | 0.85 cm | | 300 px | 3.13 in | 1 in | 2.54 cm | | 500 px | 5.21 in | 1.67 in | 4.23 cm | | 600 px | 6.25 in | 2 in | 5.08 cm | | 800 px | 8.33 in | 2.67 in | 6.77 cm | | 1,000 px | 10.42 in | 3.33 in | 8.47 cm | | 1,080 px | 11.25 in | 3.6 in | 9.14 cm | | 1,200 px | 12.5 in | 4 in | 10.16 cm | | 1,500 px | 15.63 in | 5 in | 12.7 cm | | 1,920 px | 20 in | 6.4 in | 16.26 cm | | 2,400 px | 25 in | 8 in | 20.32 cm | | 3,000 px | 31.25 in | 10 in | 25.4 cm | | 3,600 px | 37.5 in | 12 in | 30.48 cm | | 4,500 px | 46.88 in | 15 in | 38.1 cm | | 5,400 px | 56.25 in | 18 in | 45.72 cm | ## Inches to pixels at 96 and 300 DPI | Inches | cm | Pixels at 96 DPI | Pixels at 300 DPI | | --- | --- | --- | --- | | 0.5 in | 1.27 cm | 48 px | 150 px | | 1 in | 2.54 cm | 96 px | 300 px | | 2 in | 5.08 cm | 192 px | 600 px | | 3 in | 7.62 cm | 288 px | 900 px | | 4 in | 10.16 cm | 384 px | 1,200 px | | 5 in | 12.7 cm | 480 px | 1,500 px | | 6 in | 15.24 cm | 576 px | 1,800 px | | 8 in | 20.32 cm | 768 px | 2,400 px | | 8.5 in | 21.59 cm | 816 px | 2,550 px | | 10 in | 25.4 cm | 960 px | 3,000 px | | 11 in | 27.94 cm | 1,056 px | 3,300 px | | 12 in | 30.48 cm | 1,152 px | 3,600 px | | 15 in | 38.1 cm | 1,440 px | 4,500 px | | 18 in | 45.72 cm | 1,728 px | 5,400 px | | 24 in | 60.96 cm | 2,304 px | 7,200 px | ## Mistakes to avoid - **Changing the DPI to make a file "print quality".** A 1000 px image set to 300 DPI is still 1000 px: it prints at 3.33 inches. You need more pixels to print bigger. - **Upscaling a small file.** Stretching pixels makes a soft print. Start your design at the full template size. - **Mixing screen and print sizes.** 96 DPI is for screens. A 1920 px wide image is 20 inches on a screen but only 6.4 inches at 300 DPI. To check whether an image is sharp enough for a print size, use the [DPI calculator](https://podly.co/tools/dpi-calculator/). To skip the sizing, [Podly Design](https://podly.co/features/design/) turns a prompt, a template or a best-seller into a Merch-ready 4500 × 5400 PNG. Facts checked and page updated on November 14, 2026. ## Pixels and inches questions, answered. Something we missed? [Send us a message.](https://podly.co/contact/) A human answers. **01 How many pixels are in an inch?** It depends on the resolution. At 300 DPI, an inch holds 300 pixels; at 96 DPI, 96 pixels. On the web, CSS fixes 1 inch at 96 pixels, which is why many converters use 96 by default. **02 How do I convert pixels to inches?** Divide the pixels by the DPI. 4500 pixels at 300 DPI is 4500 ÷ 300 = 15 inches. **03 How do I convert inches to pixels?** Multiply the inches by the DPI. An 8 × 10 inch print at 300 DPI needs 2400 × 3000 pixels. **04 What size is 4500 × 5400 pixels in inches?** 15 × 18 inches at 300 DPI, which is the print resolution Amazon asks for. It is the artwork size of Merch on Demand’s template for T-shirts, sweatshirts, long sleeve shirts and the back of hoodies. **05 How many pixels is 8.5 × 11 inches?** 2550 × 3300 pixels at 300 DPI, the size for a sharp letter-size print. At 96 DPI, the screen standard, it is 816 × 1056 pixels. More free tools ## Keep going with these free tools. - Design & print ### DPI calculator Print size and DPI from your pixel size - Design & print ### DPI checker Check an image file’s DPI and print size - Design & print ### T-shirt design size chart Print sizes and placement by product Free ebook ## +1,000 Print-On-Demand niches. Free, in your inbox. More than 1,000 hot Print-On-Demand niches, updated weekly. Discover top-selling ideas and start getting more sales. [See what's in the guide](https://podly.co/1100-free-niche-for-merch-by-amazon/). ![The 1,000+ Niches That Sell ebook standing in the clouds](https://podly.co/images/home-v2/ebook.webp) ## Your file is the right size. Now make a design that sells. Join 6,000+ Merch sellers who check Podly before they design. [Start free, find best-sellers](https://app.podly.co/register?utm_source=podly.co&utm_medium=website&utm_content=pixels_to_inches_final) [Add to Chrome, free](https://chromewebstore.google.com/detail/podly-ai-toolset-for-merc/dipicnapjjmogjmpcncbfooffdhcfndk) ![Podly Merch Database](https://podly.co/images/home-v2/tab-research.webp)