Architecture Scale Converter for Scenic Designers
Easily convert real-world dimensions into model scale with this free tool designed specifically for scenic designers, theatre artists, and makers. Whether you’re working in 1/4" = 1’-0”, 1:25, or custom scales, this calculator helps you translate inches and feet into millimeters for accurate drafting, 3D printing, and model construction.
How to Use This Tool
Enter a real-world measurement (in inches or feet), choose your desired scale from the dropdown, and get the model-size conversion in millimeters instantly. This converter is ideal for anyone building physical models or printing scenic elements at reduced scale.
A Tool I Wish I Had Sooner
The idea for this tool actually started in graduate school. I remember going through all the steps manually and thinking, there has to be an easier way. At the time, I built an Excel document that worked well enough, but I always wished I could do the same thing quickly on my phone. I even thought about turning it into an app, but that wasn’t really practical. When I started building this version of my website — and with the help of AI — I was finally able to bring the tool to life. It’s simple, fast, and something I would’ve used daily in school and early career.
Frequently Asked Questions
Q: Why does the converter use millimeters?
Millimeters are standard in most model-making and 3D printing workflows because they allow for more precise scaling. Since many scenic designers work across digital and physical formats, having a consistent metric output makes the math easier—especially when working from inches and feet.
Q: What if my scale isn’t listed?
I kept the dropdown focused on the most common theatrical scales, but you can adjust the code or request new ratios. I wanted to prioritize clarity over clutter. If you regularly work in a different scale and want it added, feel free to reach out.
Q: Can I use this on my phone?
Yes. The tool is responsive and works well on mobile. That was a key goal from the start—I wanted something I could use backstage or in the shop without needing a spreadsheet or laptop.