Aspect Ratio Calculator – Instantly Calculate and Convert Aspect Ratios
Whether you're editing video, resizing images, designing a website, or choosing the perfect display, understanding aspect ratios is crucial. The Aspect Ratio Calculator helps you calculate or convert the proportional relationship between width and height quickly and accurately.
At Calculators.at, our free Aspect Ratio Calculator makes it easy to maintain visual consistency and avoid distortion in your media projects.
🔍 What Is an Aspect Ratio?
An aspect ratio is the relationship between the width and height of a screen, image, or video. It's typically expressed as two numbers separated by a colon (e.g., 16:9, 4:3, or 21:9).
Formula:
Aspect Ratio = Width ÷ Height
Expressed in lowest terms (e.g., 1920:1080 = 16:9)
🧮 How to Use the Aspect Ratio Calculator
- Enter either:
- 📐 Width and height values
- Or an existing aspect ratio (e.g., 16:9) and a new width or height
- Click "Calculate" to get:
- The aspect ratio in lowest terms
- The corresponding missing dimension (if resizing)
✅ Why Use an Aspect Ratio Calculator?
- 🎬 Resize videos or images without distortion
- 🖥️ Select ideal screen sizes and resolutions
- 🎨 Maintain design symmetry on web pages
- 📱 Format content for mobile, social media, or widescreens
- 📸 Prepare photography prints accurately
🧠 Example Calculations
- Width: 1920, Height: 1080 → Aspect Ratio = 16:9
- Resize a 4:3 video to 800px wide → New height = 600px
- Resize a 1:1 image to 400px high → New width = 400px
👥 Who Should Use It?
- 🎥 Video editors and YouTubers
- 📷 Photographers and graphic designers
- 🌐 Web and UI/UX designers
- 💻 Developers and content creators
- 🧑🏫 Students and educators in media or design