The calligraphy ink coverage calculator tells you exactly how many bottles of ink you need for your project — wedding envelopes, menu cards, place cards, or large signage — before you start ordering supplies.
Project Details
Bottles Needed
How to Calculate Calligraphy Ink for Your Project
Running out of ink mid-project — especially for a wedding — is a nightmare. This calligraphy ink calculator takes project type, nib, and experience level to give you a reliable bottle count before you place your order.
Step 1: Select your project type
Envelope addressing uses more ink than place cards because each envelope has a full address (3–5 lines), while a place card has just a name. Inner and outer envelope addressing roughly doubles the ink usage compared to outer-only. Signage uses significantly more ink — each letter is much larger.
Step 2: Account for nib type
Pointed pen nibs use much less ink per letter — the fine hairlines barely touch paper. A broad-edge nib or brush pen deposits 3–5× more ink per stroke because of the wider contact area. The same text addressed with a No. 2 pointed nib versus a 3mm broad-edge can use 4× less ink.
Step 3: Add a buffer for experience level
Beginners waste more ink — practice attempts, mis-dips, over-loading the nib, and cleaning failures all consume extra ink. Add 15% for beginners, 5% for experienced calligraphers. Always order slightly more than the estimate — ink keeps for 1–2 years if stored properly.
Frequently Asked Questions
Is this calligraphy ink calculator free?
Yes, completely free with no signup required. Enter your project type and quantity for an instant ink estimate.
Is my data safe and private?
Yes. All calculations run locally in your browser. No data is sent to any server.
How much ink does it take to address wedding envelopes?
A typical A7 wedding envelope with inner and outer addressing uses about 1.5–2ml of ink per piece with a pointed pen. For 100 envelopes, plan for 150–200ml (3–4 bottles of 50ml) plus a 15% beginner buffer. An experienced calligrapher uses slightly less — closer to 1–1.5ml per envelope.
Can I use gouache instead of calligraphy ink?
Yes, but gouache is measured differently. Gouache is mixed with water to a heavy cream consistency — typically 1 part gouache to 1.5–2 parts water by volume. A full tube of gouache (15ml) mixed at 1:1.5 produces about 38ml of usable ink. Gouache gives opaque color on dark paper; standard calligraphy ink works best on white or light paper.
What calligraphy ink is best for wedding work?
Dr. Ph. Martin's Black Star Hi-Carb is a professional standard for black pointed pen work. Sumi ink (Kuretake, Yasutomo) is excellent for broad-edge nibs. For colors, Dr. Ph. Martin's Hydrus or Winsor & Newton Drawing Ink offer smooth flow and vivid color. Avoid India ink that contains shellac — it clogs nibs quickly.
How long does calligraphy ink last once opened?
Most calligraphy inks last 1–2 years if stored properly: cap tightly after each use, store at room temperature away from sunlight. Iron gall ink can ferment and clog nibs — use within 6–12 months. Gouache mixed with water should be used within a few hours. Water-based inks kept in airtight containers last longer.