Image Dimensions Calculator
Convert image pixels to print size at a given DPI, or find the pixels needed for a print size.
Your inputs
Results
Print size
10 × 6.67 in
- Print size (cm)
- 25.4 × 16.93 cm
- Megapixels
- 6
✓Exact calculation — rounded only for display
What this calculator does
Print quality depends on pixels per inch. 300 DPI is a common target for high-quality prints.
Formula and method
Print size (in) = pixels ÷ DPI; pixels needed = inches × DPI
Worked example
Calculated by this tool with its default inputs:
Inputs
- Calculate: Print size from pixels and DPI
- Width in pixels: 3000
- Height in pixels: 2000
- Resolution: 300 DPI / PPI
Results
- Print size: 10 × 6.67 in
- Print size (cm): 25.4 × 16.93 cm
- Megapixels: 6
How to read the results
Larger prints viewed from a distance can use lower DPI.
Assumptions and limitations
- DPI and PPI are used interchangeably here.
Questions
How big can I print a 12 MP photo?
About 13.3 × 10 in at 300 DPI for 4000 × 3000 pixels.
Methodology and verification
- Result type
- Exact mathematical calculation (rounded only for display)
- Formula version
- 1.0
- Automated verification
- 3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
- Editorial review
- Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.
Privacy
Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy