Image Pixel Calculator Online – Megapixels, Aspect Ratio & Print Size
Calculate image dimensions, total pixels, megapixels, aspect ratio, and print size at 300 DPI instantly. No upload required. Privacy-safe and supports all image formats.
Drag & drop your image here
or click to browse
Introduction
Ever needed to know the total pixel count, megapixels, or aspect ratio of an image for printing or web design? Our Image Pixel Calculator Online gives you instant access to all that data. Just drag and drop any image, and you'll get width, height, total pixels, megapixels, aspect ratio, and even estimated print size at 300 DPI. No upload, 100% private.
How to use the Image Pixel Calculator Online in 3 steps
- Drag & drop your image into the box above, or click to select a file (JPG, PNG, WebP, GIF, BMP, SVG, HEIC – all supported).
- Instantly see the preview and all pixel statistics below – width, height, total pixels, megapixels, aspect ratio, and print dimensions.
- Use the data for your projects: check image dimensions, calculate megapixels for printing, or find the perfect aspect ratio for social media.
What is an Image Pixel Calculator Online?
It's a smart online tool that not only shows image dimensions but also calculates derived values: total pixels (width × height), megapixels (total / 1,000,000), aspect ratio (simplified ratio), and print size in inches at 300 DPI. Perfect for photographers, designers, and anyone preparing images for print or web. This free online tool works entirely in your browser – no server uploads, no watermarks.
Why use an Image Pixel Calculator Online?
Knowing just the dimensions is often not enough. For high‑quality printing, you need megapixels and print size. For video or design, aspect ratio matters. This tool gives you all in one place, saving you manual calculations. It’s also completely private – your images never leave your device.
Manual calculation vs our online pixel calculator
Manual: Multiply width × height, divide by 1 million, find GCD for aspect ratio – time‑consuming and error‑prone.
Our tool: Instant, accurate, and effortless. It’s the ultimate megapixel calculator and aspect ratio calculator combined.
Why everyone loves this tool
Your images stay on your device. We never upload or store anything. Processing happens locally in your browser. That’s why it’s secure and private – a true privacy‑safe image pixel calculator online.
Frequently Asked Questions
1. What image formats does the Image Pixel Calculator Online support?
We support all common formats: JPG, PNG, WebP, GIF, BMP, SVG, and even HEIC. If it’s an image, our online pixel calculator will read its dimensions.
2. Do you store my images?
No. Everything runs in your browser. Your images never leave your computer. We value your privacy – that’s what makes this the best free image pixel calculator online.
3. What is a megapixel?
A megapixel (MP) is one million pixels. It's calculated by multiplying width and height and dividing by 1,000,000. For example, a 1920x1080 image is about 2.07 megapixels. Our megapixel calculator does this instantly.
4. How is aspect ratio calculated?
We simplify the ratio of width to height by dividing both by their greatest common divisor. For example, 1920x1080 becomes 16:9. This aspect ratio calculator gives you the cleanest format.
5. What is print size at 300 DPI?
We divide the pixel dimensions by 300 (dots per inch) to give the physical print size in inches. A 3000x2400 pixel image would print at 10x8 inches at 300 DPI. Perfect for planning prints.
6. Can I use this on my phone?
Absolutely. The tool is fully responsive. Just open it on your smartphone, tap the drop zone, and select an image from your gallery. It’s a mobile‑friendly image pixel calculator online.
7. Is there a limit on file size?
No fixed limit. Very large images (100MB+) might take a moment to load, but they still work. It depends on your device’s memory. Our tool handles large files better than most online pixel calculators.
8. Why should I use this instead of Photoshop?
Photoshop is heavy and expensive. Our tool is instant, free, and gives you all pixel statistics without any software installation. It’s the ideal free alternative for quick image dimension checks.
Ready to use the Image Pixel Calculator Online?
Try it now – drag an image above. No signup, no hidden fees. It’s that simple. If you find it useful, bookmark us for future image dimension and pixel calculations!