A scale 3D figurine is a printed figure sized as a fixed fraction of the real thing: a 1:12 figure is one twelfth of real height, a 1:48 figure one forty-eighth. Pick the scale first, divide the real height by the second number, and you have the printed height. The same math works for a person, a pet, a mascot or a drawing, as long as you also check that thin parts are thick enough to print.
This guide covers the ratios, the formulas for resizing, the printability checks that save a print, and the safety points for figures that end up in children's hands.
TL;DR
- Scale is a ratio of linear size: model height = real height ÷ the second number (1:12 turns a 5 ft 9 in person into about 5.75 in).
- To resize an existing figure, use target size ÷ current size × 100 as a percentage, and scale all three axes together.
- Thin swords, ears, fingers and tails are what fail first when you shrink a figure, so check them before you commit to a size.
- Figures meant for children under 3 need to avoid small parts; for older kids, supervision and sturdy designs matter.
- We can turn one photo, drawing or logo into a previewed figurine, with size and color chosen before you pay.
Table of Contents
- What "scale" means for a figurine
- Common scales and what they look like in inches
- How to calculate and change a figurine's size
- What to check before shrinking or enlarging
- Filament or resin: which suits a scale figure
- Perspective: why we start from your image
- Starting from a photo, drawing or logo
- Order a scaled figure from us
- Safety: figures for kids, shelves and desks
- A short checklist before you pick a scale
- FAQ
- Sources
What "scale" means for a figurine
A scale ratio compares the length of the model to the length of the real subject. In 1:56, every measurement on the model is one fifty-sixth of the original. That applies to height, width and depth alike, which is why the figure keeps its shape.
The formula is short:
- Model size = real size ÷ the scale denominator. A 180 cm person at 1:6 is 30 cm tall.
- Real size = model size × the denominator. A 3-inch figure at 1:24 stands for a 72-inch (6 ft) person.
Two habits cause most confusion. The first is mixing up the direction: 1:48 is smaller than 1:12, because the bigger denominator means more shrinking. The second is treating "28mm" and similar labels as exact. In tabletop gaming, a label like 28mm loosely names the height of a standing figure, and makers vary in how heroic or chunky the proportions are. Treat it as a category, not a guarantee.
One more point for display scenes: keeping every figure at the same scale is what makes a diorama read as believable. FineScale Modeler's guide to model scale notes that experienced modelers can bend scale for forced perspective, but beginners should keep everything uniform so figures do not look oddly large or small.
Common scales and what they look like in inches
Here is what a 5 ft 9 in (69 in) adult comes out to at the scales people ask about most. The numbers are straight division, so you can redo them for any height.
| Scale | Printed height of a 69 in person | Typical use |
|---|---|---|
| 1:6 | 11.5 in | Collectible action figures |
| 1:12 | 5.75 in | Dollhouses, desk figures |
| 1:24 | 2.9 in | Larger dioramas, model rooms |
| 1:35 | 2.0 in | Military models |
| 1:48 | 1.4 in | O-scale trains, small dioramas |
| 1:64 | 1.1 in | Die-cast vehicle scenes |
Tabletop "mm" sizes sit in the same range. A 28mm gaming figure is roughly 1:56 to 1:64 by convention, which explains why a rule-of-thumb conversion between the two always carries a margin.
For pets, the reverse question is more useful: how big should the figure be on a shelf? A 20 in tall dog at 1:4 is 5 in tall, a comfortable desk size. A 10 lb cat at about 1:5 to 1:6 lands near a hand-sized keepsake. Choose by where it will sit, then work backward.
How to calculate and change a figurine's size
You rarely need a special tool. You need one measurement and one division.
- Measure the dimension that matters on the current model. For a person, that is usually the base to the top of the head. Use the same dimension every time.
- Divide the target by the current size and multiply by 100. A figure that is 34 mm tall and needs to be 28 mm gets 28 ÷ 34 × 100, about 82%.
- Apply it as a uniform scale in your slicer or modeling app, with proportions locked so width and depth change with height.
- Measure again. If the number is off, the scale was applied to one axis only or the model had a different unit.
To move from one scale notation to another, divide the current denominator by the target denominator and multiply by 100. A 1:6 file reprinted at 1:4 needs 150%, since 6 ÷ 4 × 100 = 150. Going the other way, 1:12 to 1:24 is 12 ÷ 24 × 100 = 50%.
A worked example: you want a 1:12 figure of a 4 ft 2 in (50 in) child. Target height is 50 ÷ 12, about 4.2 in. If your file measures 6 in tall, the percentage is 4.2 ÷ 6 × 100 = 70%.
The cube rule for weight and material
Linear size and volume do not move together. Double a figure's height and its volume grows about eight times, since the factor applies three times. Printing a 1:12 figure at 1:6 means roughly eight times the plastic, a longer print and a heavier piece. Going down has the same effect in reverse: a figure at half height uses about one eighth the material, which is why small versions are cheap to make and big ones step up fast in price.
What to check before shrinking or enlarging
Math makes any size possible. The printer decides which ones work. Before you pick a final scale, walk the figure and look for these.
Thin features
Swords, antennae, fingers, whiskers, tails and the thin lines of a drawing become fragile or vanish as you shrink. FDM printers, the common filament type, have a nozzle around 0.4 mm wide, so a feature much thinner than about 1 mm simply will not form cleanly. If a detail matters to you, make that part thicker in the model, or choose a larger scale and accept the bigger footprint.
Base size
If the figure has to stand on a game board, a train platform or a display stand, measure the base after scaling. A figure that is the right height but sits on a base that is too wide for its slot is a common surprise.
Stability and balance
A tall figure on tiny feet topples. A larger, flatter base fixes it and is easy to hide in a scene with grass, snow or paint.
Supports and orientation
After any resize, regenerate supports. Old supports were built for the old dimensions and will not line up. For figures with outstretched arms or sitting poses, supports are normally needed, and sanding afterward removes the marks. If you are placing a model on a build plate yourself, point the face and front toward the side that gets the least support contact.
Hollow versus solid
Hollow models save material, but sealed hollows trap air or resin. If you hollow a figure, give it a drain or vent hole in an inconspicuous place such as under the base.
Filament or resin: which suits a scale figure
There are two common print methods. Resin printing cures liquid with light and gives very fine detail and smooth surfaces, which suits small, detail-heavy pieces such as 28mm gaming figures. Filament printing melts plastic and lays it down in layers. It is usually cheaper and faster, shows layer lines up close, and suits larger figures, keepsakes and shapes with chunkier forms.
For display figures between roughly 3 and 8 inches, filament is a practical choice, and a bit of sanding or paint smooths the finish. Keep the shape bold. Soft curves and clear silhouettes look better in filament than hairline detail.
Perspective: why we start from your image
At 3D Print Pics, we see the same pattern with nearly every order: people pick a scale first, then discover the subject was never designed for it. A child's crayon drawing has outlines a hair thick. A pet photo hides the legs behind the body. A logo has tiny text.
That is why our process puts the preview before the payment. You upload an image, choose colors (up to 7, in non-toxic PLA) and a size, and see the 3D model before you approve it. Scale then becomes a choice you make while looking at the actual figure, not a guess you hope works out.
We built it for parents, pet owners, teachers and small businesses who want a keepsake, not a weekend of slicer settings. If you want to see how size choices change the result, our guide to custom 3D print sizes walks through it.
Ian
Starting from a photo, drawing or logo
Most off-the-shelf scale figures are generic: a standard man, a standard woman, a standard pose. If what you want is a specific person, pet or character, you need to begin from your own image.
The route depends on the source:
- A single photo. One picture can become a figurine without a scan. Our write-up on a no-scan 3D figurine from one photo explains what a good source photo looks like.
- A child's drawing. Flat art can be built up into a solid shape. See how a drawing becomes a 3D model for printing.
- Line art and logos. Clean vector files can skip CAD entirely. Here is how to turn line art into print-ready 3D.
- A business mascot. A logo or sketch can grow into a standing figure, covered in mascot 3D printing from a logo or drawing.
- Flat, relief-style pieces. Not every keepsake has to be fully round. Hobbyists can explore bas relief 3D prints.
- Your own mesh. If you already have a model file and it keeps failing, a mesh repair workflow is the first fix to try.
Whatever the source, give the model a pose that suits the size. Arms close to the body, a sturdy base and simple outlines all raise the odds of a clean print at small scale.
Order a scaled figure from us
If you would rather skip the slicer math, we handle it. Upload your picture to 3D Print Pics, pick a color and size, and review the 3D preview before you commit. Custom 3D models are priced from $49.99 to $77.99, and rush processing is available for an extra $10.
The preview is the key step for scale work. You see the proportions, thin parts and base on screen first, so a figure that would be too delicate at your chosen size shows up before anything is printed.
Safety: figures for kids, shelves and desks
The material is only part of the question. For a figure that a child will hold, the shape and size of the piece matter most.
Children under 3. In the US, the Consumer Product Safety Commission bans children's products for under-3s that present a choking hazard from small parts, and it defines a small part as anything that fits entirely into a cylinder approximating a young child's fully expanded throat, per CPSC small parts guidance. A tiny scale figure, or a thin piece that snaps off, can fall into that category. Treat a small-scale figurine as a display piece for older children and adults, and keep it out of a toddler's reach.
Children over 3. Choose chunkier designs with rounded edges, avoid long thin spikes, and check the figure for breakage after rough play. Thin swords and antennae are the pieces that snap into sharp edges.
Material. Our figures are printed in non-toxic PLA. That is a statement about the filament, though, not a food-contact rating: printed surfaces have tiny grooves, so keep figures away from mouths, plates and cups. We explain this in more detail in our article on why 3D prints are not food safe.
Display and cleaning. Dust with a soft dry or slightly damp cloth. Keep PLA figures out of hot cars and direct sun through a window, where PLA can soften.
A short checklist before you pick a scale
- Decide where the figure will sit and how tall it can be there.
- Convert the real height with real ÷ denominator, then confirm in inches.
- Check that thin parts survive the size, or thicken them.
- Check the base fits its stand, slot or shelf.
- Decide who will handle it. For a toddler, skip small figures altogether.
- Preview the model before you approve it.
FAQ
What is the most common scale for 3D printed figurines?
It depends on use. Desk keepsakes tend to land between 3 and 8 inches, which is about 1:9 to 1:24 for a person. Dollhouse figures are usually 1:12, and gaming figures use the 28mm and 32mm height labels. Choose by the space you have rather than by a single standard.
How do I convert a figure from 1:12 to 1:24?
Divide the current denominator by the target one and multiply by 100: 12 ÷ 24 × 100 gives 50%. Enter 50% with uniform scaling in your slicer. Then measure the result to confirm.
Can I print a figure from a photo at a specific height?
Yes. You pick the height that suits your shelf, then check the preview for thin parts that might not survive at that size. With our service, you see the 3D model before approving the order, so you can change the size or color if needed.
Are small 3D printed figures safe for kids?
They are safe for most older children when designs are chunky and used with supervision. For children under 3, small parts are a choking risk, and US rules ban such products that present that hazard. Keep small scale figures out of reach of toddlers.