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The target here is 400 × 1000 px: a portrait (tall) 2:5 image of 0.4 megapixels. The preset fills in both dimensions for you, so you only need to add the photo and download the result.
Because the output size is fixed, the photo's own shape matters: if it is not 2:5, you either crop it or it gets distorted. The table below shows how much each common photo shape loses.
| Output size | 400 × 1000 px |
|---|---|
| Aspect ratio | 2:5 (portrait) |
| Total pixels | 400,000 (0.4 MP) |
| Prints at 300 DPI | 1.3 × 3.3 in (3.4 × 8.5 cm) |
Related guide: JPG vs PNG vs WebP vs AVIF: Which Image Format to Use
Fitting a photo into 400 × 1000 px
Resizing to a fixed width and height only gives a clean result when the photo has the same shape as the target. A shape mismatch has two outcomes: the picture is stretched, or part of it is cropped. Crop first, then resize, so you decide what is cut. This is how much of each common photo would be lost to fill 2:5:
| Starting photo | Cropped away to fill the shape |
|---|---|
| Phone photo (4000 × 3000, 4:3) | About 70% of the image |
| DSLR photo (6000 × 4000, 3:2) | About 73% of the image |
| Video frame (1920 × 1080, 16:9) | About 77% of the image |
| Portrait phone photo (3000 × 4000, 3:4) | About 47% of the image |
Size, quality and file weight
400,000 pixels saved as a JPG at web quality typically weigh about 39.06 KB to 117.19 KB, depending on how much detail the picture contains. Flat graphics and screenshots saved as PNG compress very well when colors are simple, and poorly when they contain photographic gradients.
For photos, JPG or WebP are good choices; for logos, text or transparency, PNG keeps edges clean.
How large can it be printed?
These figures follow from the pixel count: print size = pixels ÷ DPI. Going above the 300 DPI row gives no visible benefit; going below it looks softer.
| Quality | DPI | Print size |
|---|---|---|
| Screen-resolution draft | 72 | 5.6 × 13.9 in (14.1 × 35.3 cm) |
| Acceptable for posters | 150 | 2.7 × 6.7 in (6.8 × 16.9 cm) |
| Photo quality | 300 | 1.3 × 3.3 in (3.4 × 8.5 cm) |
Related presets
Nearby sizes in this category
More in this category: Resize Image to Exact Pixel Dimensions. For several photos at once, use the bulk image resizer.
Frequently asked questions
What aspect ratio is 400 × 1000?▼
How big will a 400 × 1000 file be?▼
How large can I print a 400 × 1000 px image?▼
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