Aspect Ratio Calculator: Quick and Clear Results

Enter original dimensions and one new dimension to calculate the missing value

The calculator will maintain the aspect ratio when scaling your dimensions.

Original Dimensions

New Dimensions (enter one value)

This aspect ratio calculator keeps your width and height aligned. Enter the original width and height, then type one new value to resize.

What This Calculator Does

The aspect ratio calculator preserves the link between width and height during scaling. It calculates the missing dimension as you type. It displays the simplified ratio like 16:9.

Fields and what to enter:

Use the same unit in all fields for a correct scale.

How It Works

Enter your original width and height. The tool reduces them to the smallest whole numbers. Aspect ratio is width divided by height in simplest form. This gives a clear ratio such as 4:3 or 3:2.

When you type a new width, it computes the matching height. The formula uses original height times new width divided by original width. Type a new height to compute the matching width. The formula uses original width times new height divided by original height. The result rounds to two decimals.

It checks the ratio against known targets and may add a label.

How to Use This Tool

1. Type the original width and height.

2. Enter one new dimension only. The other new field clears as you type.

3. Watch the missing value and the ratio appear.

4. Click Clear All to reset everything.

Why Use This Tool?

The aspect ratio calculator saves time and keeps images clean. It keeps shapes consistent across sizes.

It serves design teams and video editors. It helps photographers and printers.

Benefits for Every User

You get clear math and instant feedback. The process removes guesswork and saves clicks.

New values appear as you type. Results round to two decimals for clean handoff to your app.

Notes and limits:

Final Thoughts

Use this aspect ratio calculator for quick and accurate results. It fits daily design and media work.

Set your originals. Enter one new size. Get the matching value and the correct ratio.