Print Size Calculator
This print size calculator turns pixels and dpi into a print size: enter image width and height in pixels and the wanted resolution, then read the size in inches and centimeters and the formats that fit.
Example: Image width 6,000 pixels · Image height 4,000 pixels · Wanted resolution 300 dpi → Print size: At 300 dpi: 20 × 13.3 inches (50.8 × 33.9 cm), 24 megapixels. Source: Wikipedia – Pixel density (ppi, conversion between pixels and length). Updated: .
How it is calculated
A photo of 6000 × 4000 pixels prints at 20 × 13.3 inches (50.8 × 33.9 cm) at 300 dpi; for an A4 sheet you need at least 2481 × 3508 pixels at 300 dpi. The calculator converts pixels to inches and checks which formats your image fills sharply.
How it is calculated
The print size in inches is the pixel count divided by the resolution in dpi, in centimeters times 2.54. 6000 pixels at 300 dpi make 20 inches or 50.8 cm. The table turns the calculation around: for common formats it lists the pixels needed at your target resolution and the resolution your image actually reaches on that format. If it is below the target the table says “no”; the image can still be printed but looks softer up close.
Which dpi make sense?
- 300 dpi is the usual standard for photos and prints viewed at arm’s length.
- 150 to 200 dpi are often enough for large formats seen from farther away.
- The value in the calculator is adjustable: choose it by viewing distance and quality demand.
More image tools: the pixel calculator, the image sizes for social media and the aspect ratio.
Frequently asked questions
How do I calculate print size from pixels?
Divide the pixels by the dpi and multiply by 2.54 for centimeters. 6000 pixels at 300 dpi are 20 inches or 50.8 cm.
How many pixels do I need for 8×10 inches?
At 300 dpi, 2400 × 3000 pixels; at 150 dpi half of that.
Which dpi does a photo need?
For photos viewed at arm’s length 300 dpi is the standard. Larger formats are viewed from farther away, so 150 to 200 dpi are often enough.
What is the difference between dpi and ppi?
ppi counts image pixels per inch, dpi printed dots per inch. In everyday use both are treated as the same for resolution.
Sources and legal basis
- Wikipedia – Pixel density (ppi, conversion between pixels and length)
- Wikipedia – Dots per inch (dpi, ppi and print resolution)
- Wikipedia – ISO 216 (A-Formate, A4 = 210 × 297 mm)
As of: · Editorial policy
Related tools
- Pt to mm converterPt to mm converter: 1 pt = 0.3528 mm (1/72 inch). Convert font sizes to millimeters, picas, inches and pixels at any resolution, with a size table.
- Pixels to cmConvert pixels to cm with the right resolution: pixels to cm, mm and inches, length to pixels, and the print size your photo reaches at 300 dpi.
- Social Media Image Sizes 2026Image sizes for Instagram, Facebook, YouTube, LinkedIn, X, Pinterest and Threads – official specs only, each with source. Copy dimensions, calculate height.
- Aspect Ratio CalculatorCalculate the aspect ratio from width and height (1920 × 1080 = 16:9), find the missing side, decimal value, nearest standard ratio and CSS aspect-ratio.
- View and remove EXIF dataView and remove EXIF data from photos: camera, date taken and GPS location. Lossless without re-encoding, for JPG and PNG – right in your browser, no upload.
- Crop Factor CalculatorCrop factor calculator: choose a sensor size and see the crop factor, full-frame focal length, equivalent aperture and ISO, also for custom sizes. Free.
- QR Code Generator – free and permanentQR code generator for links, Wi-Fi, contacts (vCard), email, SMS or phone – add colors and a logo, download PNG or SVG. Never expires, no tracking, no sign-up.
- Paper Sizes: A4, Letter and MorePaper sizes A0 to A10, B, C, US Letter, Legal and cards in mm, cm, inches, points and pixels at any dpi, with half and double sizes. Free lookup chart.
- Upscale imageUpscale image 1.5 to 4 times with the Lanczos method, no AI and no upload. Magnifier comparison with simple scaling, export as PNG, JPG or WebP. Free.