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Aspect Ratio & Screen Resolution Converter

Calculate pixel dimensions for any aspect ratio. Includes presets for social media, YouTube, and AI image generators like Midjourney.

Width (px)

Height (px)

Lock Aspect Ratio

Common Ratios

Device & Platform Presets

Visual Preview

16:9

1920 x 1080

Megapixels

2.1 MP

Total Pixels

2,073,600

What is the Aspect Ratio & Screen Resolution Converter?

The Aspect Ratio & Screen Resolution Converter is a specialized utility for digital artists, UI designers, and content creators who need to maintain specific proportions across different display formats. Whether you are prepping a video for YouTube (16:9), a TikTok Reel (9:16), or an AI-generated image for Midjourney, this tool ensures your dimensions are pixel-perfect.

Unlike a simple calculator, this tool provides a visual preview of the aspect ratio frame, allowing you to see the actual shape of your content before you start your project. It also calculates the total megapixel count, which is critical for staying within the resource limits of modern AI models and web performance standards.

How to Calculate Custom Resolutions

Set Your Base Value

Enter either the width or height in pixels. Use the "Lock Ratio" toggle to keep proportions constant.

Choose a Preset

Select from common ratios like 16:9 or platform-specific dimensions for Instagram and TikTok.

Preview the Frame

Watch the visual preview box adjust its shape to represent the final aspect ratio of your content.

Copy and Apply

Instantly copy the dimensions to use in Photoshop, After Effects, or your favorite AI art tool.

Why Aspect Ratio Matters

Aspect ratio is the proportional relationship between width and height. Using the wrong ratio can result in awkward black bars (letterboxing) or critical parts of your image being cropped out by social media algorithms. By calculating the exact pixels beforehand, you ensure that your visuals are displayed exactly as intended across all devices.

Frequently Asked Questions

How do I calculate pixel dimensions from an aspect ratio?

Enter either the width or height and select your desired aspect ratio (e.g., 16:9). The tool will automatically calculate the missing dimension. If you change the ratio, it will update the dimensions while trying to stay close to your original resolution.

What are the best aspect ratios for social media?

Common ratios include 9:16 for TikTok and Instagram Reels, 4:5 for Instagram portrait posts, 1:1 for square posts, and 16:9 for YouTube and X (Twitter) landscape videos.

What is the "Lock Aspect Ratio" feature?

When enabled, changing either the width or the height will automatically adjust the other value to maintain the current proportion. This is useful when resizing images for specific containers.