Aspect Ratio Calculator
Convert between any aspect ratios with frame-accurate precision. Essential for filmmakers, video editors, and content creators working across different formats.
Input & Output Value Types
IInput Value Types
Source Resolution
Resolution enum or custom values
Input resolution from preset options or custom dimensions
Target Aspect Ratio
StandardRatio enum or custom values
Target aspect ratio from preset options or custom ratios
OOutput Value Types
New Dimensions
Calculated resolution maintaining aspect ratio
- • Example: 1920 × 1080
- • Example: Precise integer calculations
- • Example: Maintains proportional accuracy
Crop/Letterbox Information
Format transformation details
- • Example: Crop dimensions when needed
- • Example: Letterbox/pillarbox calculations
- • Example: Pixel-accurate positioning
Professional Calculator in Your Pocket
Get instant, frame-accurate aspect ratio calculations with our native app. Designed specifically for filmmakers, video editors, and content creators.
Lightning Fast
Get instant calculations without waiting for web pages to load
Everything You Need for Professional Work
From indie films to Hollywood productions, our aspect ratio calculator handles every format and use case.
Preset Resolution Library
Built-in common video formats (4K DCI, 4K UHD, 1080p, etc.) with custom input options for specialized workflows.
Crop & Letterbox Support
Handle different aspect ratio transformations while preventing distortion with intelligent cropping and letterboxing.
Real-time Calculation
Automatically calculates new dimensions as you adjust inputs with live updates for immediate feedback.
Professional Aspect Ratio Reference
| Ratio | Name | Common Use | Example Resolution |
|---|---|---|---|
| 2.39:1 | CinemaScope | Theatrical releases, epic films | 4096×1716 |
| 1.85:1 | Flat / Academy Flat | Standard cinema, most films | 1998×1080 |
| 16:9 | HD / Widescreen | TV, streaming, YouTube | 1920×1080 |
| 21:9 | Ultra-wide | Cinematic content, gaming | 2560×1080 |
| 9:16 | Vertical / Portrait | TikTok, Instagram Stories | 1080×1920 |
| 1:1 | Square | Instagram posts, profile pics | 1080×1080 |
Professional Aspect Ratio Calculator Calculator in Your Pocket
Professional calculator app designed specifically for filmmakers. Twelve essential tools including speed percentage, timecode math, and aspect ratio calculations.