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Aspect Ratio Calculator

Aspect Ratio Calculator

Common Presets
Original Width (px)
Original Height (px)
Scale to New Size (enter one)
New Width
New Height
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Detailed Guide Coming Soon

We're working on a comprehensive educational guide for the Aspect Ratio Calculator in your language. The content below is shown in English.

What is Aspect Ratio Calculator?

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An aspect ratio calculator determines the proportional relationship between width and height, expressed as W:H. It lets you scale dimensions while preserving the original ratio to prevent distortion.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

נוסחה

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f(x)Scale by width: New Height = Original Height × (New Width ÷ Original Width)

How to Aspect Ratio Calculator

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  1. 1Aspect Ratio = Width : Height, simplified by dividing both by their GCD
  2. 2GCD (Greatest Common Divisor) found using the Euclidean algorithm
  3. 3Scale by width: New Height = Original Height × (New Width ÷ Original Width)
  4. 4Scale by height: New Width = Original Width × (New Height ÷ Original Height)

Worked Examples

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Example 1
Given:1920 × 1080 pixels
תוצאה:Aspect ratio 16:9 — scale to 1280 wide gives 720 height
Example 2
Given:2560 × 1440 pixels
תוצאה:Aspect ratio 16:9 — scale to 1920 wide gives 1080 height
Example 3
Given:1024 × 768 pixels
תוצאה:Aspect ratio 4:3 — scale to 800 wide gives 600 height

Common Aspect Ratios and Uses

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RatioCommon NameTypical Use
16:9WidescreenHD and 4K TV, YouTube, monitors
4:3TraditionalOld TVs, tablets, iPad
1:1SquareInstagram, profile photos
9:16PortraitMobile video, TikTok and Reels
21:9UltrawideCinema and gaming monitors

Frequently Asked Questions

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Q

What is Aspect Ratio?

A

An aspect ratio calculator determines the proportional relationship between width and height, expressed as W:H. It lets you scale dimensions while preserving the original ratio to prevent distortion

Q

How accurate is the Aspect Ratio calculator?

A

The calculator uses the standard published formula for aspect ratio. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

Q

What units does the Aspect Ratio calculator use?

A

This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

Q

What formula does the Aspect Ratio calculator use?

A

The core formula is: Aspect Ratio = Width : Height, simplified by dividing both by their GCD. Each step in the calculation is shown so you can verify the result manually.

Formula-verified for precision
Reviewed October 2026
Our methodology

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