Resolution Scale Calculator

Scale image and video resolutions while maintaining aspect ratios

Resolution Scaling Calculator

Original Resolution

px
px

Scaling Method

%

100% = original size, >100% = upscale, <100% = downscale

Digital to Physical Dimensions

Standard print quality is 300 PPI

Common Scale Factors

Resolution Examples

1080p → 1440p
177.8% upscale
1440p → 1080p
56.25% downscale
1080p → 4K
400% upscale
4K → 1080p
25% downscale

Scaling Tips

Downscaling improves performance but reduces quality

Upscaling increases size but may blur images

Maintain aspect ratio to avoid distortion

Use 300 PPI for high-quality printing

Integer scaling (2×, 3×) provides best quality

Understanding Resolution Scaling

What is Resolution Scaling?

Resolution scaling is the process of changing the size of digital content (images, videos, or displays) by adjusting the number of pixels while maintaining the aspect ratio. This allows content to fit different screen sizes or meet specific requirements.

Types of Scaling

  • Upscaling: Increases resolution and file size, may reduce sharpness
  • Downscaling: Decreases resolution and file size, improves performance
  • Integer Scaling: Scaling by whole numbers (2×, 3×) for optimal quality

Scaling Formula

Scale Factor = (Target Pixels ÷ Original Pixels) × 100%

Where pixels = width × height

Aspect Ratio Preservation

Our calculator automatically maintains the aspect ratio when scaling to prevent distortion. The aspect ratio is calculated using the greatest common divisor (GCD) of the width and height values.

Pro Tip: For gaming, downscale resolution to improve performance, then use sharpening filters to restore visual quality.

Common Use Cases

Gaming Performance

Downscale render resolution to boost FPS while maintaining display resolution. Common scales: 75%, 50% of native resolution.

Image Optimization

Reduce image size for web use while maintaining quality. Typical downscales: 50-75% for web, 25% for thumbnails.

Print Preparation

Calculate required resolution for print quality. Use 300 PPI for photos, 150 PPI for general printing.