Image Rotation Angle & Transform Calculator
Calculate rotation angles (90°, 180°, 270°) and transform parameters.
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This image rotator calculates the transform values needed to rotate an image by 90, 180, or 270 degrees, along with the corresponding CSS transform and SVG matrix syntax you can drop straight into your code. It's aimed at developers building image galleries with rotation controls, anyone fixing EXIF orientation issues in photos taken on a phone, and CSS/SVG authors who need the precise rotate() and matrix() values rather than guessing them by hand. Enter your rotation angle and the tool returns ready-to-use transform strings plus the resulting swapped width/height when rotating 90 or 270 degrees. Because it's a calculation utility rather than an image processor, no photo is uploaded — you get instant, accurate transform math directly in your browser without waiting on server round-trips or worrying about where your image data goes. This makes it especially useful when you're debugging a rotation transform that isn't behaving as expected in code. Scroll down to pick your rotation angle and copy the generated transform values into your project.
Features
- Calculate CSS transform: rotate() values for 90°, 180°, 270°
- Generate SVG matrix transform equivalents
- Shows resulting width/height after 90° or 270° rotation
- Supports arbitrary custom rotation angles
- Copy-ready transform syntax for CSS and SVG
- Real-time preview of transform values
- No image upload needed — pure math and syntax tool
- Useful for fixing EXIF orientation logic
Why use this image flip & rotate data transform?
- Instant calculation with no processing delay
- Fully private — no image file is ever uploaded
- Mathematically accurate transform and matrix values
- Removes guesswork from CSS/SVG rotation syntax
- Free with unlimited use and no signup
Frequently asked questions
What CSS property rotates an image?
The transform property with a rotate() function, such as transform: rotate(90deg), rotates an element including images.
Why do width and height swap after a 90° rotation?
Rotating an image 90 or 270 degrees turns its horizontal and vertical axes, so what was the width becomes the height and vice versa.
Does rotating an image with CSS actually change the file?
No, CSS rotation is a visual transform applied at render time and doesn't modify the underlying image file.
How do I fix a photo that displays sideways due to EXIF orientation?
Apply the correct rotation transform based on the EXIF orientation tag value, which this calculator can help you map to degrees.
What's the difference between CSS rotate() and an SVG matrix transform?
CSS rotate() is a simple angle-based transform, while an SVG matrix combines rotation, scale, and translation into one 6-value matrix for more control.
Is my image uploaded when calculating rotation values?
No, this tool only computes transform syntax from the angle you enter — no image file is involved.
Can I rotate by an angle other than 90/180/270?
Yes, you can enter any custom angle and get the corresponding rotate() and matrix transform values.
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