How large can I print my photo? A practical sizing workflow
Work from your original pixels to a realistic print size, then account for cropping, viewing distance and the file you actually send.
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Print Size Calculator
Enter an image’s pixels and a target PPI. See the largest print size, the effective DPI on 13 standard sizes and how much each crop keeps.
Your dimensions
On your deviceExample result
20 × 13.33 inches
Largest print at 300 PPI · 6,000 × 4,000 px · 3:2
- In centimeters
- 50.8 × 33.87 cm
- Megapixels
- 24 MP
- Largest listed size at target
- 12 × 18 in
| Print size | Effective PPI | Image kept | Target |
|---|---|---|---|
| 4 × 6 in | 1,000 | 100% | Meets |
| 5 × 7 in | 800 | 93.3% | Meets |
| 8 × 10 in | 500 | 83.3% | Meets |
| 8 × 12 in | 500 | 100% | Meets |
| 11 × 14 in | 364 | 84.8% | Meets |
| 12 × 18 in | 333 | 100% | Meets |
| 16 × 20 in | 250 | 83.3% | Below |
| 18 × 24 in | 222 | 88.9% | Below |
| 20 × 30 in | 200 | 100% | Below |
| 24 × 36 in | 167 | 100% | Below |
| US Letter | 471 | 86.3% | Meets |
| A4 | 484 | 94.3% | Meets |
| A3 | 342 | 94.3% | Meets |
| Density | Inches | Centimeters |
|---|---|---|
| 72 PPI | 83.33 × 55.56 | 211.67 × 141.11 |
| 150 PPI | 40 × 26.67 | 101.6 × 67.73 |
| 200 PPI | 30 × 20 | 76.2 × 50.8 |
| 240 PPI | 25 × 16.67 | 63.5 × 42.33 |
| 300 PPI | 20 × 13.33 | 50.8 × 33.87 |
| 360 PPI | 16.67 × 11.11 | 42.33 × 28.22 |
Standard sizes are turned to match the image orientation and filled with a centered crop, so “Image kept” shows how much survives the crop.
“Meets” is a numerical comparison with your target only. It does not assess focus, noise or how the print will look.
Calculation details & inputs
| Image width | 6000 px |
|---|---|
| Image height | 4000 px |
| Target resolution | 300 PPI |
| Width at target PPI (in) | 20 |
|---|---|
| Height at target PPI (in) | 13.333333 |
| Width at target PPI (cm) | 50.8 |
| Height at target PPI (cm) | 33.866667 |
| 4 × 6 in: effective PPI when filled | 1,000 |
| 5 × 7 in: effective PPI when filled | 800 |
| 8 × 10 in: effective PPI when filled | 500 |
| 8 × 12 in: effective PPI when filled | 500 |
| 11 × 14 in: effective PPI when filled | 363.636364 |
| 12 × 18 in: effective PPI when filled | 333.333333 |
| 16 × 20 in: effective PPI when filled | 250 |
| 18 × 24 in: effective PPI when filled | 222.222222 |
| 20 × 30 in: effective PPI when filled | 200 |
| 24 × 36 in: effective PPI when filled | 166.666667 |
| US Letter: effective PPI when filled | 470.588235 |
| A4: effective PPI when filled | 483.809524 |
| A3: effective PPI when filled | 342.087542 |
| 4 × 6 in: image kept (%) | 100 |
| 5 × 7 in: image kept (%) | 93.333333 |
| 8 × 10 in: image kept (%) | 83.333333 |
| 8 × 12 in: image kept (%) | 100 |
| 11 × 14 in: image kept (%) | 84.848485 |
| 12 × 18 in: image kept (%) | 100 |
| 16 × 20 in: image kept (%) | 83.333333 |
| 18 × 24 in: image kept (%) | 88.888889 |
| 20 × 30 in: image kept (%) | 100 |
| 24 × 36 in: image kept (%) | 100 |
| US Letter: image kept (%) | 86.27451 |
| A4: image kept (%) | 94.285714 |
| A3: image kept (%) | 94.276094 |
Behind the numbers
How the calculation works
Largest print = pixels ÷ target PPI. Effective PPI on a standard size = the smaller of (pixels ÷ inches) on each axis, after turning the size to match the image.
Effective PPI is a numerical density. It does not assess focus, noise, compression or viewing distance.
Results use the numbers you enter. See the methodology for precision, accepted ranges and sharing behavior.
Reference notes
References checked September 28, 2026. Calculations and worked examples are our own.
Useful answers
Common questions
How big can I print a 6000 × 4000 pixel photo?
At 300 PPI the full frame measures 20 × 13.33 inches (50.8 × 33.87 cm). At 200 PPI it measures 30 × 20 inches. The table shows how each standard size compares after cropping to its shape.
What does effective PPI mean for a standard size?
It is the number of image pixels that land in each printed inch after the image is enlarged or reduced to cover that size. When the shapes differ, the excess is cropped, so the density is set by the tighter axis.
Why is the largest listed size sometimes smaller than the full print size?
The full print size keeps your image’s exact proportions. Standard sizes have their own proportions, so filling them crops part of the image and can lower the effective density on one axis.
Is 300 PPI required for every print?
No single number fits every print. Use your provider’s specification at the final size. Large prints viewed from farther away are often prepared at lower densities; this calculator shows the numbers so you can compare them.
A practical next read
Related print guides
4×6, 5×7 or 8×10? What each photo size crops
Compare three familiar print shapes using one 3000 × 2000 photo, with crop dimensions, retained area and orientation explained.
Read articleDoes changing DPI to 300 improve an image?
Separate a resolution label from resampling and learn what actually changes when a 2400 × 3000 image is set to another PPI.
Read articleRelated calculators
All tools →Print / 01
Pixels → print size
Convert pixels to inches, cm or mm at any PPI. Convert one measurement instantly, compare a PPI table, or calculate the width and height of an image.
Open toolPrint / 02
Print size → pixels
Start with a physical size and a target PPI. Calculate a whole-pixel canvas with an explicit rounding choice.
Open toolPrint / 03
Find an image’s DPI
Calculate the DPI (PPI) of an image at your print size: DPI = pixels ÷ inches. Choose a local image or enter its pixels, then compare fit versus crop.
Open tool