🖥️ Pixels to Inches Converter
Convert digital measurements between pixels and inches using dots per inch (DPI/PPI).
Enter either the pixel dimension or physical length along with resolution. The calculator keeps both values in sync and surfaces useful density metrics.
Digital measurement, usually from your design or image file.
Common values: 72 for screens, 150 for draft print, 300 for high quality.
Physical size on paper or display. Updates automatically.
Physical Length
3.6 in
9.14 cm
Pixel Density
300 DPI
118.1 px/cm
Pixels per Millimeter
11.81
Useful for laser cutters, CNC engraving, and high-precision printing.
How to Use This Calculator
Enter either pixels or inches
Start with the value you know. The other field updates automatically once a resolution is provided.
Specify the resolution
Set the DPI/PPI used in your design, printer, or display. This links pixels to physical length.
Review density metrics
Use the centimeter and millimeter conversions to confirm print quality, screen specs, or fabrication tolerances.
Formula
Inches = Pixels ÷ DPI
Pixels = Inches × DPI
Pixels per cm = DPI ÷ 2.54
DPI (dots per inch) and PPI (pixels per inch) are used interchangeably for most design and display workflows.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Translating between digital and physical dimensions is essential for graphic designers, photographers, UI engineers, and print specialists. DPI connects pixel counts from files to real-world sizes on paper, fabric, or hardware displays.
This converter keeps pixels, inches, and resolution synchronised so you can iterate rapidly on layouts, signage, or hardware mockups. Additional metrics in centimeters and millimeters help when collaborating with teams using metric measurements or configuring precision equipment.
Pair this tool with the Length Converter or Inches to Fraction Calculator when a project spans both digital and physical fabrication steps.
Frequently Asked Questions
What is the difference between DPI and PPI?
DPI traditionally refers to printer dots per inch, while PPI refers to screen pixels per inch. In practice, they are often used interchangeably when converting digital artwork to physical size.
Why does the inches field change when I edit pixels?
Pixels and inches are linked by DPI. Changing one while holding DPI constant must update the other to stay accurate.
What resolution should I use for printing?
For high-quality prints, 300 DPI is standard. Draft prints may use 150 DPI, while large-format banners can go lower depending on viewing distance.
Can I use this for screen design?
Yes. Specify the device PPI to see how large an element appears physically. This helps with hardware prototyping and kiosk design.