Print Size Calculator

Work out the printed size of an image from its pixel dimensions and DPI.

Your files stay on your deviceNo signup requiredNo watermarkFree browser-based tools

Pixel width

Pixel height

Target DPI

Print size (inches)10 × 8 in

Print size (centimeters)25.4 × 20.32 cm

Common pixel sizes and what they can print

Use these examples as a quick reality check before editing DPI metadata or resizing. The same image can print larger at a lower DPI, but the effective detail density drops as the physical size increases.

Image pixels	At 300 DPI	At 150 DPI	Practical note
1200 × 1800 px	4 × 6 in	8 × 12 in	Good 4×6 photo; lower-density 8×12
2400 × 3000 px	8 × 10 in	16 × 20 in	Standard 8×10 target
2480 × 3508 px	A4	16.5 × 23.4 in	A4 at 300 DPI
3600 × 5400 px	12 × 18 in	24 × 36 in	Large photo or poster source
7200 × 10800 px	24 × 36 in	48 × 72 in	High-end 24×36 poster source

Choose the DPI based on the print, not the file label

Target	Best fit	Tradeoff
300 DPI	Photo prints, artwork, documents viewed up close	Needs the most pixels
240 DPI	Photo lab workflows and high-quality prints	Often visually strong with fewer pixels
150–200 DPI	Posters and wall prints viewed farther away	More realistic for large formats
72 or 96 DPI	Screen metadata, not a print-quality target	Usually irrelevant for physical printing

If your image is close to the target, use the calculator result to decide whether to print smaller, accept a lower effective DPI, or prepare a new file with the Image Resizer for Print. For photo-lab sizes, compare against the Photo Print Sizes chart.

How it works

Enter the image's pixel width and height.
Choose the DPI you plan to print at.
Read the resulting print size in inches and centimeters.

print width in inches = pixel width / DPI, print height in inches = pixel height / DPI, and centimeters = inches × 2.54. For example, a 3000×2400px image at 300 DPI prints at 10 × 8 inches, or 25.4 × 20.32 cm.

Related tools

DPI Checker

See the current DPI, pixel size, and print size of any image.

Image Resizer for Print

Resize an image to exact print dimensions.

Pixels to Inches

Convert pixel dimensions to inches at any DPI.

Related guides

Photo Print Sizes in Pixels: Complete 300 DPI Chart

Pixel dimensions, aspect ratios, and crop guidance for common photo print sizes from 4×6 to 16×20.

A4 Size in Pixels at 300 DPI

Calculate A4 pixel dimensions at any DPI and compare portrait and landscape values.

8×10 Print Size in Pixels

The exact pixel dimensions an 8×10 photo needs at 300 DPI and other common resolutions.

Poster Sizes in Pixels at 300 DPI

Compare standard and A-series poster dimensions at 100, 150, 200, and 300 DPI with a live calculator.

FAQ

How is print size calculated?

Print width in inches equals pixel width divided by DPI, and likewise for height. Centimeters are inches multiplied by 2.54.

What DPI should I use for this calculation?

Use 300 DPI for most professional print jobs, or check your printer's or print service's recommended DPI if you have one.

Can I use this calculator before resizing an image?

Yes. Start here to see what size your current pixels can print at 150, 240, or 300 DPI. Resize only after you know the source image has enough real pixels for the print size you want.

Why do two images with the same DPI print at different sizes?

DPI only describes density. The final print size also depends on pixel dimensions, so a 6000px-wide image and a 1200px-wide image will print at very different sizes even if both are labeled 300 DPI.