The right dimensions, every time.

Dimension Calc was born out of a real need: when generating AI video and media—whether with tools like Sora, Kling, LTX, or any diffusion-based model—getting the exact width and height right is critical. The wrong dimensions mean wasted generations, distorted outputs, and lost time. This app was conceived and built to solve that problem instantly.

Now Dimension Calc is the go-to tool for AI creators, designers, videographers, photographers, and content creators who work with media dimensions daily. Enter any width or height, and the other calculates automatically to maintain your chosen aspect ratio.

Why Dimension Calc?

Whether you're locking in the right resolution for an AI video generation prompt, resizing images for social media, calculating export dimensions for video, or planning screen layouts, Dimension Calc makes it effortless to maintain perfect aspect ratios.

Key Features:

⚡ Instant Calculations
Enter any width or height, and the other dimension automatically calculates to maintain your chosen aspect ratio. No math, no hassle.

🔒 Smart Lock Feature
Lock either width or height to keep one dimension fixed while you experiment with different ratios. Perfect for fitting content to specific constraints.

📐 Any Aspect Ratio
Supports all common ratios (16:9, 4:3, 1:1, 21:9, 9:16) plus custom ratios. Create exactly what you need, not what a preset allows.

👁️ Visual Preview
See your dimensions come to life with a real-time visual frame that updates as you adjust values. Know exactly what your aspect ratio looks like.

📋 One-Tap Copy
Double-tap any value to instantly copy it to your clipboard. Quick, seamless workflow integration.

⚡ Lightning Fast
Clean interface with zero lag. All calculations happen instantly on your device—no internet required.

🎨 Beautiful Design
Modern, intuitive interface that gets out of your way. Professional tool that's a pleasure to use.

Perfect For:
• AI video and image generation (Sora, Kling, LTX, Stable Diffusion, and more)
• Graphic designers creating assets for multiple platforms
• Video editors calculating export dimensions
• Photographers resizing images while maintaining quality
• Social media managers optimizing content for different channels
• Web developers planning responsive layouts
• UI/UX designers prototyping screen dimensions
• Content creators preparing thumbnails and covers

Free with Options:
Dimension Calc is completely free to use with a small, unobtrusive banner ad. Want an ad-free experience? Upgrade once for just $1.99 to remove ads permanently. No subscriptions, no recurring fees—just a one-time purchase for lifetime ad-free access.

No learning curve. No feature bloat. No monthly subscription. Just fast, accurate dimension calculations whenever you need them.

Download now and never struggle with aspect ratio math again.