Print Size Calculator
Enter the width and height of your image in pixels and the print resolution you want. The calculator gives the largest print size in centimetres and inches and the biggest standard paper it will fill.
- Pixels to print size
- Any DPI
- Paper size match
Find the pixel size in your photo's file details. Cropping reduces the pixels you have.
Print size is pixels divided by dots per inch. A 6,000 pixel wide photo printed at 300 DPI is 20 inches, about 51 cm, wide. At 150 DPI it doubles to over a metre. How low you can go depends on how close people will stand to look at it.
Print size chart
Common cameras and files. Search for a resolution.
| Image (px) | Megapixels | At 300 DPI | At 150 DPI |
|---|---|---|---|
| 1920 × 1080 | 2.1 | 16.3 × 9.1 | 32.5 × 18.3 |
| 3264 × 2448 | 8 | 27.6 × 20.7 | 55.3 × 41.5 |
| 4000 × 3000 | 12 | 33.9 × 25.4 | 67.7 × 50.8 |
| 6000 × 4000 | 24 | 50.8 × 33.9 | 101.6 × 67.7 |
| 8192 × 5464 | 45 | 69.4 × 46.3 | 138.7 × 92.5 |
Sizes in centimetres, landscape. Print labs often accept a little under 300 DPI without visible loss.
DPI and print size
A 24 MP photo. Slide the resolution.
The drawing shows the print against A-series sheets. The shaded area is the largest print at that DPI.
How to work out print size
Pixels ÷ DPI. Step through it.
Find the pixels
Width and height.
To go the other way, multiply the print size in inches by the DPI to find the pixels you need.
300, 150 or 100 DPI
Quality by viewing distance. Compare them.
Sharp up close. Photos and books.
Looks sharp from a metre or so.
Fine for big prints on a wall.
A billboard can be as low as 15 DPI, because no one sees it closer than many metres.
Before printing
Quality checks. Tick each item.
Tick each item as you go.
Upscaling software can add pixels, but it cannot add real detail. Shoot or scan at the size you need when you can.
What you get
Print sizing. Each tile explains one result.
cm and inches.
Largest standard size.
Image size.
Poster size.
Pixels needed.
A4 at 300 DPI needs 2,480 × 3,508 pixels, about 8.7 megapixels.
Frequently Asked Questions
No question matches that search.
How big can I print a 12 megapixel photo?
About 34 × 25 cm at 300 DPI, or 68 × 51 cm at 150 DPI.
How many pixels for an A4 print?
2,480 × 3,508 at 300 DPI.
What DPI should I print at?
300 for close viewing, 150 for posters.
How big can I print a 24 MP photo?
About 51 × 34 cm at 300 DPI.
Is 72 DPI OK for printing?
Only for very large prints viewed from far away.
What is the difference between DPI and PPI?
PPI is pixels in the file, DPI is dots on paper. For sizing, they are used the same way.
Can I print a phone photo large?
A 12 MP phone photo makes a good A3 print at about 200 DPI.
Print as big as your pixels allow
Divide your pixels by the DPI to get the print size, and pick a resolution to suit the viewing distance. Your prints will look sharp where people actually see them.
More size calculators
Each one has its own calculator, worked examples and answers to common questions.