Resize Image in Inches
Enter the width and height in inches, set the DPI, and get an image with the matching pixel size.
Drag and drop an image here
JPG, PNG, WebP, AVIF, HEIC, GIF or BMP · one file · up to 50 MB
Your image stays on this device and is never uploaded.
How to use the Resize Image in Inches
- Choose an image, or drag it onto the drop area. It stays on your device.
- Pick Inches, then enter the width and height you need. With Lock aspect ratio on, the second value follows the first so the picture is not squashed.
- Check the DPI. It only decides how many pixels each unit holds, so the same size at a higher DPI gives a bigger, sharper file.
- Choose JPG, PNG or WebP and, for JPG or WebP, the quality. The preview shows the new pixel size before you save.
- Press Resize image, then download the result. The original file is never changed.
About this tool
Inches are the simplest case because DPI is already pixels per inch: pixels = inches × DPI. A 4 × 6 inch print is 1200 × 1800 pixels at 300 DPI, 600 × 900 at 150 DPI, and 2400 × 3600 at 600 DPI. A 5 × 7 inch print is 1500 × 2100 pixels at 300 DPI.
Most print labs ask for roughly 300 DPI for a sharp photo, although many accept less for large prints viewed from a distance. If you only need the picture to fit a screen or an upload limit, you do not need 300 DPI, and a lower value keeps the file small.
Print sizes also have an aspect ratio. A 4 × 6 print is 3:2, an 8 × 10 print is 5:4, and a phone photo is often 4:3 or 16:9. Forcing a different shape squashes the picture, so crop first if the shapes do not match.
Practical uses
- Getting a photo to the pixel size a print lab suggests for a 4 × 6, 5 × 7 or 8 × 10 print.
- Preparing artwork for a frame or card of a known size.
- Checking how big a print an existing image can support.
Tips for better results
- Compare the shape of your photo with the print shape before you resize.
- Do not enlarge a small image a lot and expect a sharp print. Resizing cannot add detail.
- Keep the original file in case you want a different size later.
Frequently asked questions
How do I convert inches to pixels?
Multiply the inches by the DPI. For example, 6 inches at 300 DPI is 1800 pixels.
How many pixels do I need for a 4×6 photo?
1200 × 1800 pixels gives 300 DPI. 600 × 900 pixels is enough for 150 DPI, which still looks fine for many casual prints.
Does resizing change the quality?
Shrinking an image is safe. Enlarging it cannot add detail, so the tool warns you when the new size is larger than the original.
Is my image uploaded?
No. The file is read and rewritten in your browser, and it never leaves your device.
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Privacy
Your image is processed in your browser on your own device. It is not uploaded to Paul Digital or any other server, and nothing is stored once you close the page.