Pixels to Inches Converter
Convert pixels to inches and back at any DPI, with centimetres alongside.
What this tool does
A pixels to inches converter divides pixels by DPI: at the standard 96 DPI screen density, 960 pixels is 10 inches. Going the other way multiplies inches by DPI to get pixels. The conversion is meaningless without choosing a DPI - the same 1,920 pixels is 20 inches at 96 DPI, 6.4 inches at 300. The calculator converts a full width-and-height dimension in one pass and returns centimetres alongside.
Converts pixels to inches and back at any DPI, with centimetres returned as well.
Shows what the same pixel count measures at common 72, 96 and 300 DPI resolutions.
Converts a full pixel dimension like 1920x1080 in one pass, not one number at a time.
Works the reverse too: the pixels a physical size needs at a chosen density.
How to use it
- Enter the pixel width and height.
- Choose the DPI for the conversion.
- Read the size in inches and centimetres.
- Switch direction to go from inches back to pixels.
Why use this calculator
Converting pixels to inches is unavoidable whenever a digital measurement meets a physical one: screen mockups sized in px have to become print dimensions, sensor resolutions have to become frame sizes, and a design exported at the wrong density silently changes size. The DPI is the whole conversion - without it, 'how many inches is 1,920 pixels' has no single answer, and guessing the density is how prints come out the wrong size.
Why we built it
We built the pixels to inches converter to convert full dimensions in one pass and to show the same pixel count at several common DPIs at once, because the point is usually to see what changes across densities. The image DPI converter works the full print-quality triangle, the millimetres to inches converter handles pure physical units, and the CSS unit converter translates screen units where the base font size rules.
For resizing an actual file, the resize image to exact size resamples to a target pixel dimension.
Who this tool is for
- Designers moving between screen mockups and print dimensions
- Anyone checking how large a photo will print
- Web developers converting CSS pixel values
- Print shop staff working from customer files
When to use it
- Setting a print size from an image's pixel dimensions.
- Converting a screen design into physical measurements.
- Checking what a resolution like 1920x1080 covers at a density.
- Working out pixels for a physical target size.
How it is calculated
Inches = pixels ÷ DPI. Pixels = inches × DPI. Centimetres = inches × 2.54. The common densities are 72 for legacy web, 96 for standard screens, 150 for draft print and 300 for photo-quality print. The calculation is linear, so doubling the pixels doubles the size at fixed DPI.
Worked example: 1,920 × 1,080 pixels at 96 DPI is 20 × 11.25 inches, or 50.8 × 28.6 cm. At 300 DPI the same pixels are 6.4 × 3.6 inches - the pixel count never changed, only the density applied to it.
72 versus 96 DPI is a historical split: Mac displays settled at 72, Windows at 96. A CSS pixel is nominally 1/96 inch, which is why the two conventions still coexist and why a 'pixel' is not a fixed physical length.
The same pixels at different DPIs
| DPI | Inches | Centimetres | Use |
|---|---|---|---|
| 72 | 26.7 × 15.0 | 67.7 × 38.1 | Legacy web |
| 96 | 20.0 × 11.3 | 50.8 × 28.6 | Standard screen |
| 150 | 12.8 × 7.2 | 32.5 × 18.3 | Draft print |
| 300 | 6.4 × 3.6 | 16.3 × 9.1 | Photo print |
A worked example
These are the values the calculator opens with, so you can see exactly what it does with them. Change any value on the page and the result updates; the figures below come from the same calculation.
| Input | Value |
|---|---|
| Pixel dimensions | 1920 × 1080 |
| DPI | 96 |
With those inputs, the calculator returns:
- Size: 20 × 11.25 inches
- Size: 50.8 × 28.6 cm
- At 300 DPI: 6.4 × 3.6 inches
- Aspect ratio preserved: 16:9
What you enter, and what you get back
| Item | Details |
|---|---|
| Pixels | Width and height, or a single value. |
| DPI | Sets the physical density for the conversion. |
| Result | Inches, centimetres, the reverse conversion and cross-density sizes. |
Issues you may run into
| What you see | Why it happens | What to do |
|---|---|---|
| Size differs between apps | Different assumed DPI (72 vs 96 vs 300). | State the DPI explicitly in the handoff. |
| Print is the wrong size | File DPI metadata not matching intent. | Set the DPI in the export, not just the size. |
| Text looks tiny in print | Screen px treated as print points. | 1 pt ≈ 1.33 px at 96 DPI - convert properly. |
| Aspect ratio drifts | Width and height converted at different DPIs. | One DPI governs both dimensions. |
Assumptions and limitations
- A pixel has no fixed physical size; the answer is only meaningful with a stated DPI.
- Assumes square pixels and a single density across the whole dimension.
- Does not resample images - it converts measurements only.
- For print-quality thresholds, use the image DPI converter's verdict.
Frequently asked questions
How do I convert pixels to inches?
Divide the pixel count by the DPI. At the standard 96 DPI, 960 pixels is 10 inches; at 300 DPI the same 960 pixels is 3.2 inches. Always state the DPI, because a pixel alone has no physical size.
How do I convert inches to pixels?
Multiply inches by the DPI. A 10-inch width at 300 DPI needs 3,000 pixels; at 96 DPI it needs 960. The calculator runs this direction when you have a physical target and need the pixel dimensions.
How many pixels are in an inch?
It depends on the DPI: 96 at standard screen density, 72 at legacy Mac density, 300 for photo print. There is no fixed answer - the pixel-to-inch relationship is set by whatever density you assume.
What DPI should I use for the conversion?
96 for screen and CSS work, 150 for draft or large-format print, 300 for photo-quality print. Use the density that matches where the result will be used, and the same density for both dimensions.
How do I convert pixels to centimetres?
Convert pixels to inches first, then multiply by 2.54. 1,920 pixels at 96 DPI is 20 inches, which is 50.8 cm. The calculator returns centimetres alongside inches so the second step is automatic.
How big is 1920x1080 in inches?
At 96 DPI it is 20 × 11.25 inches; at 300 DPI, 6.4 × 3.6 inches; at 72 DPI, 26.7 × 15 inches. The 16:9 ratio stays the same at every density - only the physical size changes with the DPI applied.