Video Ratio Calculator

Width (pixels):

Height (pixels):

Or Select Preset Ratio:

Scale By:

New Dimension Value:

Creating videos or editing media often requires precise control over video dimensions and aspect ratios. Whether you’re producing content for YouTube, Instagram, TikTok, or cinematic projects, using incorrect ratios can lead to black bars, stretched visuals, or poor display quality.

Our Video Ratio Calculator makes this process effortless. It helps you calculate the exact aspect ratio, scale video dimensions proportionally, and convert ratios into decimal values for professional editing or streaming purposes.

This online tool is perfect for content creators, videographers, editors, and hobbyists who want quick, accurate calculations without manual math.

Why Use a Video Ratio Calculator?

Manual calculations of video ratios and scaling can be tricky, especially with non-standard resolutions or when resizing for different platforms. Using this tool allows you to:

Quickly calculate the aspect ratio of any video.
Scale videos proportionally without distortion.
Convert width and height into decimal ratios for technical precision.
Save time and reduce errors during video production.
Test preset aspect ratios like 16:9, 4:3, 1:1, and more.

Key Features of Our Video Ratio Calculator

Width and Height Input – Enter your video’s pixel dimensions for calculation.
Preset Ratio Options – Choose popular presets like 16:9, 4:3, 9:16, or 21:9.
Scaling Functionality – Scale by width or height while keeping proportions intact.
Decimal Ratio Output – Shows the ratio as a decimal for professional editing.
Original and Scaled Size Display – Compare the original and adjusted video dimensions.
Easy Reset – Clear inputs and start a new calculation instantly.

How to Use the Video Ratio Calculator

Using this calculator is simple and intuitive:

Enter Width and Height – Provide the original video dimensions in pixels.
Select a Preset Ratio (Optional) – Choose a standard ratio if you want to automatically fill width and height.
Choose Scale Dimension – Decide whether you want to scale by width or height.
Enter New Dimension Value – Specify the new width or height to automatically calculate the corresponding dimension.
Click “Calculate” – View the aspect ratio, original size, scaled size, and decimal ratio instantly.
Reset – Click the Reset button to clear all values and start fresh.

Example: Scaling a Video for YouTube

Suppose you have a video with dimensions 1920 × 1080 pixels, which is a standard 16:9 widescreen ratio. You want to scale the width to 1280 pixels for online upload without distorting the image.

Enter Width = 1920 and Height = 1080.
Select Scale By = Width.
Enter New Width = 1280.
Click Calculate.

The calculator automatically adjusts the height to 720 pixels, maintaining the original 16:9 ratio. The decimal ratio will display as 1.78, which confirms proportional scaling.

This ensures your video fits perfectly on platforms that require specific resolutions.

Benefits of Using This Tool

Professional Accuracy – Ensures your video dimensions stay proportional.
Time-Saving – Reduces manual calculations when resizing or cropping videos.
Platform Compatibility – Quickly adjust videos for YouTube, Instagram, TikTok, Vimeo, or personal projects.
Ease of Use – No complex software required; it works directly in your browser.
Versatile Presets – Supports standard and cinematic ratios for photography and film.

Tips for Optimal Use

Always check the preset ratios before entering custom dimensions.
Use the scale feature to maintain proportions while resizing.
For social media, select common aspect ratios like 1:1 (Instagram) or 9:16 (TikTok).
Remember the decimal ratio is useful for editing software and technical settings.
Double-check input values for width and height to ensure accurate calculations.

Frequently Asked Questions (FAQs)

1. What is an aspect ratio?
An aspect ratio is the proportional relationship between the width and height of a video or image.

2. Why is the aspect ratio important?
Using the correct aspect ratio prevents distortion, stretching, or black bars on different devices.

3. Can I calculate non-standard ratios?
Yes, enter any width and height to calculate custom ratios.

4. What does the decimal ratio mean?
It represents the width divided by height, useful for precise editing or software input.

5. Can I scale videos without distorting them?
Yes, the tool calculates the corresponding dimension automatically to preserve proportions.

6. Which preset ratios are included?
Common ratios like 16:9, 4:3, 1:1, 9:16, 21:9, 2.35:1, 3:2, and 5:4.

7. Can this tool be used for photos?
Absolutely, it works for images, videos, and any media that requires proportional scaling.

8. What if I only know one dimension?
Use the scale by width or scale by height feature to calculate the missing dimension.

9. Is it suitable for professional video editing?
Yes, it provides precise ratios and scaled dimensions for editors.

10. Do I need any software to use it?
No, it’s fully online and works in any modern browser.

11. Can I reset the calculator?
Yes, the Reset button clears all values instantly.

12. Does it support vertical video formats?
Yes, presets include 9:16 for vertical video content.

13. Can I manually adjust width and height?
Yes, enter any values to calculate custom aspect ratios.

14. Is it free to use?
Yes, this tool is completely free with no registration required.

15. Can I scale multiple videos at once?
Currently, the tool works with one video at a time, but you can quickly repeat calculations for multiple videos.

Conclusion

Our Video Ratio Calculator is an essential tool for content creators, editors, and anyone working with video or images. By providing precise aspect ratios, scalable dimensions, and decimal values, it saves time, reduces errors, and ensures your media displays perfectly on all platforms.

Whether you’re uploading to YouTube, sharing on Instagram, or editing cinematic content, this calculator gives you the confidence that your videos are sized and proportioned correctly.