PAPERFROST
Make something by hand — papercraft projects, folding, and paper art you can actually finish.
From converting paper weights and cutting clean origami squares to sizing cards and their envelopes, estimating a project’s paper, planning a booklet, and measuring quilling strips, PaperFrost pairs free hands-on calculators with clear, practical guides. Make something by hand, and finish it.
Papercraft Calculators
Free tools for working with paper — a paper weight converter, origami square & size calculator, card & envelope size matcher, paper quantity estimator, booklet imposition planner, and quilling strip length calculator.
Paper Weight Converter
Convert paper weight between gsm and pounds for any grade, and see the same sheet expressed as a basis weight across every grade.
Origami Square & Size Calculator
Cut the largest square from any rectangle, read its diagonal, and plan a model's finished size before you fold.
Card & Envelope Size Calculator
Match a card to its envelope, get the flat blank and score line, and find the nearest standard A-line size.
Paper Quantity Calculator
How many pieces come off each parent sheet, and how many sheets a whole project needs — waste included.
Booklet Signature & Imposition Calculator
Plan a saddle-stitched booklet — padded pages, folded sheets, and which page numbers print on each sheet.
Quilling Strip Length Calculator
Convert a strip length to its finished coil diameter and turns, or a target diameter back to the strip you need.
Museum of Paper & Folding
Wander an immersive, richly illustrated collection — the art of origami, the long history of papermaking, the sculptors and cut-paper artists who work in paper, and the craft of the bound book, each in its own gallery. Every entry, image, and fact is drawn from Wikipedia and Wikimedia Commons.
Tour the museum →From the Journal
Practical guides on paper weights and choosing the right stock, beginner origami folds, cardmaking and quilling, clean scoring and folding, and storing and flattening your paper — reading to pair with the calculators above.
Understanding Paper Weights: GSM vs LB
Why the same sheet is labelled 80 lb in one shop and 216 gsm in another, what grammage really measures, and how to read a paper weight so you buy the right stock.
Beginner Origami: The Folds and Bases to Learn First
The handful of folds and starting bases that unlock most traditional origami — valley and mountain folds, the squash and petal fold, and the preliminary and bird bases.
Cardmaking Basics: Sizing, Scoring, and Your First Card
A practical start in cardmaking — the standard card sizes, how to cut and score a clean base from a single sheet, matching an envelope, and a simple layout that always looks good.
Quilling for Beginners: Rolling Your First Coils
Everything to start paper quilling — the strips and tools, how to roll a tight and a loose coil, the basic shapes you pinch from them, and how to plan strip lengths.
Choosing the Right Paper for Each Craft
Origami, cardmaking, quilling, and bookbinding each want a different paper. A practical guide to weight, grain, and surface so your project behaves the way you expect.
Scoring and Folding: How to Get Clean, Crack-Free Creases
Why cardstock cracks when you fold it and how scoring fixes it — the tools, the technique, which way to fold a scored line, and how to rescue a fold gone wrong.
Keep Learning
Plain-language explainers on the craft behind the tools — how paper is made and measured, the folds and coils that start most projects, and the techniques and traditions that tie it all together — everything you need to go deeper with confidence.
Visit the Learn hub →