Is Aspect Ratio Calculator completely free?

Yes, completely free with no registration, login, or hidden fees required. Use unlimited calculations.

What aspect ratios does this calculator support?

Supports all aspect ratios including 16:9, 4:3, 21:9, 1:1, 3:2, 9:16, and custom ratios. Simply enter any width and height values.

Can I calculate aspect ratio for any resolution size?

Yes, works with any pixel dimensions from small mobile sizes (320x480) to large displays (7680x4320) and beyond.

How do I scale a resolution while keeping aspect ratio?

Enter your current aspect ratio dimensions first, then in the Scaling section, input just the new width or height. The calculator automatically computes the matching dimension to maintain the ratio.

Does Aspect Ratio Calculator work on mobile devices?

Yes, fully responsive and works on iPhone, Android, iPad, tablets, and desktop browsers. No app installation needed.

Is my data safe using this calculator?

Yes, 100% safe. All calculations happen locally in your browser. No data is sent to servers or stored anywhere.

What file formats can I export results to?

Results can be copied to clipboard instantly or downloaded as a .txt text file. Paste into any application including Photoshop, Premiere, Final Cut Pro.

Why does my scaled resolution show decimal values?

Some aspect ratios produce decimal pixels. Round to nearest whole number, or use the 'Round' toggle to auto-round all results.

free

Aspect Ratio Calculator — free

Calculate and scale aspect ratios for any resolution.

Common Presets

Width (px)

Height (px)

How to use Aspect Ratio Calculator

Enter Your Current Resolution

Click the 'Width' input field in the top section and type your current width value in pixels. Then click the 'Height' field directly below and enter the corresponding height value. Both fields accept whole numbers only.

Click Calculate Aspect Ratio Button

Press the blue 'Calculate' button located below the input fields. The tool instantly computes your aspect ratio and displays it in simplified form (e.g., 16:9, 4:3) in the 'Result' box on the right side.

Select Target Resolution to Scale

In the 'Scaling' section below, enter your desired width or height in the respective input fields. Leave the other dimension blank. Click 'Scale' button to automatically calculate the matching dimension while maintaining the original aspect ratio.

Copy or Download Your Results

Click the 'Copy' icon next to your calculated values to copy them to clipboard, or select 'Download' to save results as a text file for later reference.

Frequently Asked Questions

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