GRAPHITEGUILD
Learn to draw — graphite, ink, and the fundamentals of the sketch.
From picking the right graphite grade and paper weight to setting up a perspective grid, scaling a reference image, training your eye on a value scale, and matching a pencil to the page, GraphiteGuild pairs free hands-on drawing calculators with practical guides and a richly illustrated museum. Learn the fundamentals, not just the finished picture.
Drawing Calculators & Tools
Free tools for drawing fundamentals — graphite grade guide, paper weight/gsm calculator, perspective grid generator, grid-transfer calculator, value scale generator, and a pencil-to-page size guide.
Graphite Grade (H/B) Guide
Look up any grade from 9H to 9B on a hardness-to-darkness scale, or enter a target darkness and get the grade recommendation for it
Paper Weight & GSM Calculator
Convert paper weight between pounds and gsm across bond, text, cover, and index stocks, plus a recommended gsm range for your medium
Perspective Grid Generator
Place the horizon and vanishing point(s) for 1-point or 2-point perspective, and get the exact guide angle to any reference point
Proportion & Grid-Transfer Calculator
Scale a gridded reference photo onto a larger drawing surface — get the scale factor, target cell size, and a distortion check
Value Scale Generator
Generate an evenly stepped grayscale value scale from paper white to full black, with the exact hex code for each step
Pencil-to-Page Size Guide
Scale a drawing between ISO 216 paper sizes (A0–A6) and get the linear/area scale factor plus a lead-width recommendation
Museum of Drawing & Illustration
Wander an immersive, richly illustrated collection — the drawing masters who set the standard for draftsmanship, the sketchbooks and studies behind their finished work, the botanical and scientific illustrators who used drawing to record the natural world, and the history of the pencils, inks, and brushes themselves, 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 graphite grades, paper choice, perspective, proportion, value, and the materials behind every drawing.
How to Choose the Right Graphite Pencil Grade
A practical guide to the 9H-to-9B hardness scale — what the letters mean, why softer grades mark darker, and how to build a small working set instead of guessing.
A Beginner's Guide to Perspective: 1-Point vs 2-Point
What a vanishing point actually is, when to reach for one versus two of them, and how to set up a horizon line that matches the vantage point you're trying to draw.
Understanding Paper Weight: GSM, Pounds, and What They Mean for Drawing
Why a 'lb' paper weight doesn't mean what it looks like it means, how gsm gives you an honest comparison across brands, and which weight range actually suits which medium.
The Grid Method: How to Scale Any Reference Drawing Accurately
The centuries-old technique for enlarging a reference image without distortion — how to set the grid, find the scale factor, and catch a stretched drawing before it's too late.
Mastering Value: Why Every Drawing Needs a Value Scale
Value — not line, not detail — is what makes a drawing read as three-dimensional. Here's why a simple grayscale strip is the single most useful practice tool for seeing it correctly.
Blending Techniques for Graphite and Charcoal
Blending stumps, tortillons, tissue, and your own finger — what each tool actually does to graphite and charcoal, and when smooth isn't the goal.
Keep Learning
Reference material on materials and tools, technique and methods, the masters who shaped drawing history, and how drawing serves science and nature — everything you need to dig deeper and keep sketching.
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