How Big Can I Print My Photo?

How it works

1. Upload a JPEG, PNG or WebP photo, or enter its pixel dimensions instead.
2. See maximum sizes at 300, 240 and 150 PPI, then check common print-size compatibility.
3. Choose a specific preset or custom print size. Review the centered crop preview when an image is available.
4. Copy a text summary, or open How many pixels do I need? to plan a print without a photo.

A real example

Pixels, print size and resolution

Pixels are the image’s digital dimensions. Physical print size is pixels divided by pixels per inch, or PPI. More inches from the same pixel count means lower density. The reference sizes keep the full original aspect ratio; they are not a promise that every photo will look good at that size.

People often call this a DPI calculator, but PPI is the relevant measurement for image pixel density. Printer DPI counts printing dots and is a different measurement. Changing a file’s DPI metadata alone does not add pixels or reveal more detail.

Use resolution guidance as a reference

The tool labels 300 PPI or more as Plenty of resolution, 240–299 as Strong resolution, 150–239 as Usable for many larger prints, and below 150 as Lower resolution—inspect carefully before printing large. Classification uses the exact calculated PPI; displayed PPI rounds down to a whole number.

Close viewing makes detail more noticeable, while distance can make a larger, lower-density print acceptable. Focus, motion blur, sharpening, compression, printer and paper also affect the result. This calculator does not inspect sharpness, artifacts or color. Review the image and follow your print provider’s requirements before ordering.

Aspect ratio and why cropping happens

A 3:2 photo fits a 6 × 4 or 12 × 8-inch landscape print without cropping. A 10 × 8-inch print is 5:4, so some edges must be removed to fill it without distortion. Common presets rotate to follow your photo; custom width and height are honored exactly as entered.

Effective PPI uses the pixels retained by the centered crop, not cropped-away edges. The overlay shows approximately what would remain. It is a reference, not an editor, and your print provider may allow another crop position. You could instead keep the whole image with borders, but border fitting is not modeled here.

A-series stock uses millimeter dimensions: A4 210 × 297, A3 297 × 420 and A2 420 × 594. Metric conversion uses exactly 2.54 centimeters per inch. A-series size reference.

Plan pixels for a future print

Multiply print width and height in inches by your target PPI, rounding up to whole pixels. An 8 × 10-inch print at 300 PPI needs 2400 × 3000 pixels; 16 × 20 needs 4800 × 6000. At 240 PPI, 16 × 20 needs 3840 × 4800. This is a dimension requirement, not an image-upscaling feature.

Manual pixel dimensions must be positive whole numbers up to 1,000,000 per side. Target PPI supports 1–9,600 and custom print dimensions from 0.001 to 10,000 inches per side. Uploaded previews are limited to 10 MB, 50 million pixels and 32,768 pixels per side to bound browser memory. Use manual mode for a larger or unsupported file.

Frequently asked questions