Digital Rebellion Aspect Ratio Calculator

Model ratios, resolution, crops, and fits instantly. Use presets or custom values for engineering planning. See precise outputs, exports, charts, and scaling guidance fast.

Calculator Input Panel

Use this engineering-focused tool to compare source media, target framing, safe fit, fill behavior, and crop impact.

Formula Used

Aspect Ratio = Width ÷ Height
Delivery Scale = min(Max Width ÷ Ratio Width, Max Height ÷ Ratio Height)
Delivery Width = Ratio Width × Delivery Scale
Delivery Height = Ratio Height × Delivery Scale
Fit Scale = min(Delivery Width ÷ Source Width, Delivery Height ÷ Source Height)
Fill Scale = max(Delivery Width ÷ Source Width, Delivery Height ÷ Source Height)
Fit Output = Source Dimensions × Fit Scale
Fill Output = Source Dimensions × Fill Scale
Diagonal Pixels = √(Width² + Height²)
Diagonal Inches = Diagonal Pixels ÷ PPI

The calculator also estimates crop-safe dimensions by trimming either width or height until the source matches the selected delivery ratio.

How to Use This Calculator

  1. Enter the source width and height of your media.
  2. Select a target preset, or choose the custom option.
  3. Type custom ratio values when using a custom frame.
  4. Set the maximum delivery width and height limits.
  5. Choose a scale percentage for quick resized output.
  6. Enter PPI if you want diagonal inches.
  7. Press the calculate button to generate outputs.
  8. Review fit, fill, crop, and export-ready values.
  9. Use the CSV or PDF buttons for download.

Example Data Table

Case Source Target Ratio Max Delivery Expected Delivery Fit Result
Web video master 1920 × 1080 16:9 1920 × 1080 1920 × 1080 1920 × 1080
Cinema scope export 3840 × 2160 2.39:1 4096 × 2160 4096 × 1714 3047 × 1714
Square social crop 3000 × 2000 1:1 2000 × 2000 2000 × 2000 2000 × 1333
Photo to classic frame 5472 × 3648 4:3 4096 × 3072 4096 × 3072 4096 × 2731
Scope to HD delivery 2048 × 858 16:9 1920 × 1080 1920 × 1080 1920 × 804

FAQs

1. What does this calculator measure?

It compares source dimensions, target ratio, delivery size, fit results, fill results, crop-safe framing, scaling outputs, megapixels, and diagonals.

2. What is the difference between fit and fill?

Fit keeps the whole image visible inside the target frame. Fill covers the full frame, but it may crop width or height.

3. Why does the delivery resolution change?

The delivery frame is limited by the maximum width and height you entered. The selected ratio scales inside those limits.

4. When should I use a custom ratio?

Use custom values when your camera, display, engineering panel, or design frame does not match the built-in presets.

5. What does crop loss percentage mean?

It shows how much source image area must be removed to match the chosen target ratio without distortion.

6. Is diagonal inches always accurate?

It is accurate only when the supplied PPI matches the real pixel density of the intended display or imaging surface.

7. Can I use this for video and still images?

Yes. The formulas work for video frames, still photos, displays, engineering panels, mockups, and cropped output planning.

8. Why export CSV or PDF?

CSV is useful for spreadsheets and batch records. PDF is useful for reviews, approvals, and fixed documentation snapshots.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.