Miniature Scale Calculator
Welcome to Size Matters — our friendly tool for getting dollhouse, roombox & minis scales just right.
Use this free Dollhouse Scale Calculator to convert real-world dimensions into miniature sizes for 1:12, 1:24, and 1:48 scale dollhouses. You can also reverse-calculate miniature measurements to determine their full-size dimensions. Measurements can be entered in inches, feet, or millimeters.
Using the Dollhouse Scale Calculator
Our Dollhouse Scale Calculator removes the guesswork from scaling measurements. Enter a real-world measurement and select your desired scale. The calculator will instantly convert the dimension into the correct miniature size.
Whether you're building furniture, designing a room, creating architectural details, or shopping for accessories, accurate scale conversions help ensure that every piece fits perfectly within your miniature world.
Remember: The secret to realistic miniatures isn't just great craftsmanship—it's maintaining the correct proportions throughout your entire project.
Scale Down (Real → Miniature)
Scale Up (Miniature → Real)
Common Dollhouse Scale Reference Chart
| Real Item | 1:12 Scale | 1:24 Scale | 1:48 Scale |
|---|---|---|---|
| Standard Door (80") | 6.67" | 3.33" | 1.67" |
| Dining Table (30") | 2.50" | 1.25" | 0.63" |
| Sofa (84") | 7.00" | 3.50" | 1.75" |
| Refrigerator (70") | 5.83" | 2.92" | 1.46" |
| Queen Bed (80") | 6.67" | 3.33" | 1.67" |
GET IT TO GO!
It’s free, with no account needed.
📲 Here’s how to get it:
Open this link in your phone’s browser:
https://letsmakeitmini.com/size-matters/
Android: Open in Chrome. Tap “Install Size Matters” if it appears, or use Chrome’s three-dot menu → Add to Home screen → Install.
iPhone: Open in Safari. Tap Share → Add to Home Screen. If “Open as Web App” appears, turn it on, then tap Add.
If Facebook opens the link inside its own browser, copy the link and paste it into Chrome or Safari first.
Before using it offline, open the app while connected to the internet and wait for “Ready for offline use on this device.”
Then your little measuring helper is just a tap away. 💚
Give it a try and tell me what you’re making!