Aspect Ratio Crop Calculator
Design utilities: colors, gradients, CSS, and SVG tools.
What does this tool do?
Crop images and videos to exact aspect ratios. Enter your dimensions, pick 16:9, 4:3, 1:1 or 9:16 (or custom), and get the largest centered crop that fits.
Supported formats
CSS
SVG
HEX
RGB
HSL
Key features
- Live preview
- Copy CSS instantly
- Export options
- Professional output
Crop images and videos to exact aspect ratios. Enter your dimensions, pick 16:9, 4:3, 1:1 or 9:16 (or custom), and get the largest centered crop that fits.
Crop area
Crop Size
-
Trimmed
-
Ratio
16:9
How to Use
- Enter your original width and height in pixels.
- Pick a target ratio like 16:9 or 1:1.
- See the exact centered crop dimensions and a visual preview.
Core Features
- 6 common ratio presets plus visual crop preview
- Largest centered crop computed automatically
- Shows exactly how much gets trimmed
- Free, instant, no signup
Frequently Asked Questions
What does "largest centered crop" mean?
It is the biggest rectangle of your target ratio that fits inside the original, centered - so nothing important near edges is favored.
Is this calculator free?
Yes, free forever.
How to Use Aspect Ratio Crop Calculator
1
Customize
Adjust colors, sizes, and styles.
2
Preview
See changes in real time.
3
Copy Code
Get production-ready CSS/SVG.
100% Private & Secure: This tool runs entirely in your browser. Your data never leaves your device and is never sent to any server.
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