3D Height Comparison Tool

How to Use the 3D Tool

Our 3D height comparison tool provides an immersive way to visualize height differences:

1. Add People: Enter names and heights for the people you want to compare.
2. Customize Avatars: Choose between male/female models and select colors.
3. Interactive View: Rotate, zoom, and pan around the 3D scene to see from any angle.
4. Share Results: Generate shareable links or download images of your comparison.

3D Features

• Realistic 3D human models with accurate proportions
• Interactive camera controls (rotate, zoom, pan)
• Customizable avatar colors and gender selection
• Quick-pick preset heights (averages by country, public figures)
• Real-time height adjustments with smooth animations
• High-quality rendering for professional presentations
• Export capabilities for images and sharing
• Responsive design that works on all devices
• Shareable links to collaborate with others

How the 3D Scaling Works

Every model shares the same base rig, sized to a 180 cm reference height. When you enter a height, the model is scaled by exactly your height ÷ 180 on all three axes, so a 165 cm and a 195 cm person in the same scene are proportioned exactly 165:195 relative to each other — not stretched or distorted independently.

The camera and grid floor automatically re-center and re-space whenever you add, remove, or resize a person, so the whole group stays framed regardless of how many people or how large the height range is.

Frequently Asked Questions

1. How accurate are the 3D height comparisons?

The 3D models are scaled directly from the height you enter: scale = your height ÷ 180 cm (the base model's intrinsic height), so the relative proportions between any two people in the scene are mathematically exact — not an artist's approximation.

2. Can I share my 3D height comparisons?

Yes. Generate a shareable link that encodes every person's name, height, color, and avatar directly in the URL, or download a PNG snapshot of the current camera view to share anywhere.

3. Does the 3D tool work on mobile devices?

Yes, with touch-friendly rotate/zoom/pan controls, though a 3D WebGL scene is naturally heavier than a flat image — on very old devices or with many people added, the 2D Height Comparison tool will feel snappier.

4. How many people can I compare at once?

There's no hard cap — people are added to a scene that automatically re-spaces itself — but rendering many 3D models at once is more demanding on your device's GPU than the 2D tool. For comparing a large group, the 2D tool is the lighter-weight option.

5. Can I customize the avatar appearance?

Yes — choose a male or female model and any color from the palette or a custom color picker, per person.

6. Can I use preset heights instead of typing a number?

Yes — the "Quick pick" dropdown in the add-person form includes average heights by country and well-known public figures, pulled from the same reference data as the 2D comparison tool, filtered to only the presets this tool can render as a 3D human model.

7. What's the difference between this and the 2D Height Comparison tool?

Same underlying idea — compare heights side by side — but this version renders full 3D models you can rotate, zoom, and pan around, at the cost of a heavier initial load. The 2D tool trades the 3D view for a lighter, faster flat comparison and supports objects, animals, and landmarks alongside people, which this tool doesn't.

8. Is my height data uploaded or stored anywhere?

No. Everything — the 3D scene, your entered heights, colors, and names — is computed and rendered entirely in your browser. A shareable link works by encoding your data directly into the URL itself, not by saving it to a server.

9. Why does the first load take a moment?

The 3D scene and its human model need to download and initialize before anything renders — a one-time cost per visit (cached afterward by your browser), unlike the instant 2D tool. A loading skeleton shows while this happens.