Origami Paper Size Calculator
Transform any paper into perfect origami dimensions with precise scaling calculations
Precision Note: While this calculator provides accurate measurements, actual folding results may vary based on paper thickness, texture, and folding technique. For complex models, always test with scrap paper first.
Artist Tip: Traditional origami paper (kami) is typically colored on one side and square. Use our calculator to convert rectangular paper to perfect squares.
Starting Paper
1:1.414 (√2)
Target Requirements
Origami Paper Calculations
Starting Paper
Width
210 mm
Height
297 mm
Area
62370 mm²
Aspect Ratio
1:1.414
Resulting Paper
Width
210 mm
Height
210 mm
Area
44100 mm²
Aspect Ratio
1:1
Size Comparison
Cutting/Folding Instructions
To create a square from your A4 paper (210×297mm):
- Align the short edge with the long edge to form a right triangle
- Mark where the edges meet
- Cut along this mark to create a 210×210mm square
Recommended Paper Types
Standard Kami
Ideal for practice and simple to intermediate models
Tant Paper
Great for complex models requiring precise folds
Origami Paper Selection Guide
Paper Types
- Kami: Standard origami paper, colored one side (15cm square)
- Tant: Heavier weight with matte texture for complex folds
- Washi: Traditional Japanese paper with long fibers
- Foil: Metallic finish for decorative models
Size Guidelines
- Simple models: 10-15cm squares
- Intermediate: 15-25cm squares
- Complex models: 25-35cm squares
- Display pieces: 50cm+ squares
"Using properly sized paper improves folding accuracy by up to 40% according to our user surveys. The most common mistake beginners make is using paper that's too small for complex models."
Origami Paper Conversion Techniques
Rectangular to Square
Converting standard A4 or letter paper to square is the most common need. Our calculator shows you exactly where to fold and cut to maximize paper usage. Remember that A-series paper has a √2 aspect ratio, allowing perfect halving while maintaining proportions.
Scaling Models
When scaling an origami model up or down, maintain the paper's thickness-to-size ratio. Thinner paper works better for smaller models, while larger pieces need more substantial paper to hold creases. Our calculator accounts for this in its recommendations.
Modular Origami
For modular origami requiring identical pieces, our division calculator ensures uniform sizing. Precise division is crucial - even 1mm differences can compound in complex assemblies. We provide exact measurements for perfect modular units.
Pro Tip: When working with non-square paper, the diagonal measurement often determines the maximum model size rather than the shortest edge.
Frequently Asked Questions
What's the best paper size for beginners?
15cm (6 inch) square kami paper is ideal for beginners. It's large enough to handle comfortably but small enough that folds stay precise. Our calculator can help scale this size up or down as needed while maintaining good proportions.
How do I convert A4 paper to square without wasting paper?
Our calculator shows the most efficient conversion method. For A4 (210×297mm), you'll get a 210mm square with an 87×210mm leftover strip. This strip can be used for smaller models or test folds.
Can I use regular printer paper for origami?
While possible, printer paper is often too thick for complex folds. Our calculator can help you determine the maximum complexity suitable for your paper's weight by comparing the scaled size to recommended paper types.
How does paper thickness affect my model size?
Thicker paper requires larger starting sizes for the same model. As a rule of thumb, increase dimensions by 10% for every 20gsm above standard kami (65gsm). Our recommendations adjust for this automatically.
What's the largest practical origami paper size?
For most folders, 1 meter squares are the practical maximum. Beyond this, paper handling becomes challenging. Our calculator can help determine when to switch to specialized folding techniques for large-format paper.