Resolution Scaling Calculator

Fast, accurate, and free online Resolution Scaling Calculator tool that runs directly in your browser.

Secure (SSL)

Client-Side Processing

100% Free

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Instructions

1

Enter data
Enter content, paste text or load a file from disk.
2

Click the button
The tool will immediately process your data in the browser.
3

Get the result
Copy the finished text or save the file to your device.

                                                function runTool() {

                                                  return "Result ready in 0.1s";

                                                }

Resolution Scaling Calculator

Calculate new dimensions, aspect ratios and crops for images and videos.

Configuration

Source Dimensions

Width (px)

Height (px)

Target Dimensions (Target)

Width (px)

Height (px)

Scaling Mode

📐

Waiting for data

Enter the dimensions on the left and click "Calculate" to see the result.

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Resolution Scaling Calculator - Convert and Adjust Image Dimensions

A professional online tool that automatically converts image resolution, maintaining proportions and the highest quality. The Resolution Scaling Calculator is an indispensable assistant for graphic designers, filmmakers and digital content creators who want to precisely adjust dimensions to the needs of their project.

How does the resolution scaling calculator work?

The scaling calculator allows you to recalculate the new resolution of an image or video based on the original dimensions and the selected change factor (e.g. 50%, 200% or specific pixel values). The tool automatically maintains proportions, so the graphics are not deformed. Just enter the width and height of the original and the calculator will calculate the exact dimensions after scaling.

Example:If your image is 1920×1080 pixels and you want to enlarge it by 150%, the calculator will show a new size of 2880×1620 pixels.

Why use the Scaling Calculator?

Automatic image scaling without distortion.
Ability to scale up (enlarge) and down (reduce).
Support for raster images (JPG, PNG) and video (e.g. 4K → Full HD).
Useful for web developers, graphic designers and online content creators.

How to use the tool?

Enter the width and height of the original image.
Enter a scaling percentage or new values in pixels.
Click "Calculate" - the calculator will automatically calculate the new size.
Read the result in pixels, proportions and percentage change.

Uses of the calculator

Graphics and design

Use the calculator to adjust the dimensions of banners, icons or graphics to websites, maintaining perfect proportions regardless of screen resolution.

Video production

With the calculator you can quickly convert 4K, 2K, Full HD and SD formats. It makes it easier to prepare videos for various platforms - YouTube, Instagram, TikTok or television.

Conversion in both directions

The tool allows not only to calculate a new resolution based on the scaling percentage, but also vice versa - to determine the scale needed to obtain a specific format. If you want to reduce the graphics from 3840×2160 to 1920×1080, the calculator will automatically show that this means scaling by 50%.

Tip:When working with images, it is worth remembering that enlarging low resolution results in loss of quality. The calculator helps you avoid mistakes by providing accurate proportions and conversion factors.

Formulas used by the calculator

New Width = Original Width × (Percent / 100)
New Height = Original Height × (Percentage / 100)
Proportion = Width / Height

Example scenarios

Graphics change 800×600 → 400×300 (50% reduction).
Full HD image scaling 1920×1080 → 2560×1440 (133% enlargement).
Convert 4K (3840×2160) file to HD (1280×720) to save space.
Preparing graphics for various resolutions of mobile and desktop screens.

Frequently asked questions (FAQ)

Does the calculator change the image quality?

No, the calculator only calculates new dimensions. The quality changes only when physically rescaling in a graphics program.

Can I only scale in one direction?

Yes, you can enter only the width or height and the tool will automatically maintain the aspect ratio of the image.

What formats are supported?

The calculator supports all standard video and image resolutions, including