Photo print size in pixels
4×6 Print Size in Pixels
A 4 × 6 inch print needs 1200 × 1800 pixels at 300 PPI. It measures 10.16 × 15.24 cm and has a 2:3 aspect ratio.
4 × 6 in at 300 PPI: 1200 × 1800 px (2.2 MP)
At 240 PPI: 960 × 1440 px · at 150 PPI: 600 × 900 px
4×6 in pixels at each density
Multiply each inch dimension by the density. The results are exact because both sides are whole inches.
| Density | Portrait | Landscape | Megapixels |
|---|---|---|---|
| 150 PPI | 600 × 900 | 900 × 600 | 0.5 |
| 200 PPI | 800 × 1200 | 1200 × 800 | 1 |
| 240 PPI | 960 × 1440 | 1440 × 960 | 1.4 |
| 300 PPI | 1200 × 1800 | 1800 × 1200 | 2.2 |
Calculate a canvas with your own settings
Your dimensions
On your device1,200 × 1,800 pixels
4 × 6 in at 300 PPI · nearest pixel
- Total pixels
- 2.16 MP
- Width density
- 300 PPI
- Height density
- 300 PPI
Nearest-pixel rounding can fall slightly below the target on one axis. Use Round up when the target is a strict minimum.
This is the canvas size. Changing a file’s PPI metadata alone does not create these pixels.
Calculation details & inputs
| Print width | 4 |
|---|---|
| Print height | 6 |
| Size unit | Inches (in) |
| Target resolution | 300 PPI |
| Pixel rounding | Nearest whole pixel |
| Required width (px) | 1,200 |
|---|---|
| Required height (px) | 1,800 |
| Exact width before rounding (px) | 1,200 |
| Exact height before rounding (px) | 1,800 |
| Effective width PPI | 300 |
| Effective height PPI | 300 |
Will my photo fit 4×6 without cropping?
4 × 6 inches is the classic snapshot size. Its 2:3 proportion matches most camera sensors, so a typical 3:2 photo fills it without cropping. In centimeters it is 10.16 × 15.24 cm, close to but not exactly the metric 10 × 15 cm print.
| Example source | Cropped pixels | Image kept | Density at 6 × 4 in |
|---|---|---|---|
| 3:2 camera frame6000 × 4000 px | 6000 × 4000 | 100% | 1,000 PPI |
| 4:3 phone frame4032 × 3024 px | 4032 × 2688 | 88.9% | 672 PPI |
| 16:9 video frame3840 × 2160 px | 3240 × 2160 | 84.4% | 540 PPI |
Example source sizes illustrate common proportions; enter your own dimensions in the crop calculator or image print checker.
How many megapixels does a 4×6 print need?
At 300 PPI the print needs 2.2 megapixels after any crop; at 240 PPI, 1.4 MP; at 150 PPI, 0.5 MP. These are arithmetic targets, not a promise of print quality: focus, noise and viewing distance matter too.
Changing an image’s PPI setting without resampling only changes its intended print size. Read what changing DPI actually does before upsizing a file.