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Description
Use Image Ratio Calculator on any tab for images, video, or print. Turn picture ratios into pixels and back. Calculate aspect ratio. Turn any width and height into a clean proportion at a glance. This image ratio calculator reduces the numbers with a real GCD, then shows a fraction and a decimal side by side, ready to copy. Need to calculate image ratio in a hurry? Open the toolbar and the aspect ratio finder detects it instantly. 🎯 What the image ratio calculator does ➤ Scale a size up or down with the shape locked. ➤ Determine the shape from two numbers without opening an editor. ➤ Run an image ratio calculator online in any browser tab. ➤ Lock one side, change the width, and recalculate the other. ➤ Check a photo with the built-in image size ratio calculator. ➤ Export an SVG placeholder into design tools like Figma. 🖼️ Image Aspect Ratio Calculator, from a file or a page Drop a file on the popup, or hover a picture on a page and press a key. It reads the real pixels of the file, so you can calculate image size based on pixels with no editor to open. A screenshot, a logo, or a camera shot all work. 📊 Image ratio calculator presets across eighteen categories ✔ Social Media — feed posts, stories, thumbnails, and profile covers. ✔ Video & Film — HD, Full HD, 4K, 8K, and cinema DCI, so a 4k ratio is one click away. ✔ Screens & Devices — laptops, tablets, and phones by exact size. ✔ Print & Presentation — portrait photo prints in a 3:4 aspect ratio and beyond, ISO paper, and slide decks. ✔ Web & Graphics — banners, og:image, favicons, and app icons. 🔍 Find the format you need ▸ Search any preset by name, size, or shape. ▸ Match a monitor with the built-in screen ratio calculator. ▸ Pick a category and a preset, and the fields fill in. ▸ Story formats are ready at a 9:16 size. ▸ Compare formats for each preset. ▸ Need exact numbers? Use the image ratio calculator pixels readout. 🔷 Preview the shape instantly It draws a real rectangle as you type. Ask for a 16:9 aspect ratio and the frame snaps to widescreen, while a 1:1 post stays square. The image ratio calculator turns a tall story, a wide banner, or a square post into a shape you can see right away. 🔢 Numbers you can trust 1️⃣ Ask for a 4:3 aspect ratio and the answer is exact. 2️⃣ Work in pixels and the math never shows NaN. 3️⃣ 16:9 in pixels resolves to 1280 × 720, 1920 × 1080, or any 16:9 proportion. 4️⃣ Every readout copies to the clipboard in one click. 👥 Built for ◆ Designers checking a layout before they export. ◆ Video editors who need 16:9 in pixels for a timeline. ◆ Photographers checking a crop before they print. ◆ Developers who calculate image size based on pixels. ◆ Teachers preparing slides for any projector. ◆ Anyone who needs exact image proportions. 🚀 Quick start with the aspect ratio calculator for images 1. Install with the Add to Chrome button. 2. Open the extension from your toolbar. 3. Type a size, pick a preset, or drop a photo. 4. Read the result and copy what you need. 🔒 Private by design It runs on your machine with no server and no data collection, so your files never leave the browser. The 16:9 calculator and every preset work without an internet connection. 🌗 Made to feel native - Light and dark themes. - Full keyboard support. - Presets work offline. - No sign in, no tracking. ❓ Frequently asked questions 📌 How to calculate aspect ratio of an image? 💡 Type the width and the height, and the tool reduces them to a clean fraction as you stop typing. 📌 Can I check a file with the ratio image calculator? 💡 Yes. Drop a photo and it reads the real pixels, so a 1200 × 1600 shot comes back as a 3:4 ratio. 📌 How do I resize a picture without distorting it? 💡 Turn the lock on and enter a new width. The image ratio calculator resize mode keeps the height in proportion. 📌 How do I match a print size before I export? 💡 Open Print & Presentation and pick the format. The same shape works either way: a portrait 1200 × 1600 image reads as 3:4, and a landscape 1600 × 1200 image as a 4:3 ratio. 📌 Which formats are covered? 💡 Over one hundred presets across eighteen categories. The image ratio calculator covers every one of them. 📌 How do I size a post for social media? 💡 Open Social Media and pick the format you post in. A feed post is set to a 4:5 aspect ratio in one click. 📌 Do I need an account? 💡 No. It runs locally with no sign in or setup. Install the image ratio calculator — the toolbar tool that keeps every print, post, or export at your intended size. This extension is an independent tool, not affiliated with or endorsed by Figma or any other third-party platforms.