How many masters are on a risograph master stencil roll?

A standard OEM master stencil roll contains approximately 220 masters (stencils), as reported by Hallagans (a major US riso supplier) as of 2025. Rolls typically cost $50–75 USD each, giving a per-master cost of roughly $0.23–$0.34.

How does spoilage affect my riso print run?

The first sheet through each new master is a 'proof print' that is often discarded. Mis-registration, ink transfer, and test pulls also consume sheets. Typical spoilage is 5–15% on top of your intended run. This calculator lets you set your own spoilage percentage so the total sheets and consumables cost reflects what you'll actually use.

Risograph Zine DIY Cost-Per-Copy Calculator

Print Run & Zine Structure

Copies in run Number of finished zines you plan to print

Zine page count Include covers; must be a multiple of 4 for saddle-stitch

Zine pages per sheet (imposition)

Ink colors Each color = 1 master per unique layout

Spoilage / test pulls (%) Proof prints, mis-registration rejects, setup waste (typically 5–15%)

Printing Double-sided zines print both sides of each sheet

Ink Tubes

Cost per ink tube ($) OEM tubes ~$45–50 (Hallagans, 2025)

Impressions per tube Light art: ~10,000; heavy coverage: ~5,000

Master Stencils

Cost per master roll ($) OEM rolls ~$50–75 (Hallagans, 2025)

Masters per roll Standard OEM roll ≈ 220 masters

Paper

Cost per sheet ($) Typical uncoated bond/newsprint 60–100gsm: $0.03–$0.12/sheet

Binding & Finishing

Binding method

Binding cost per copy ($)

Trimming/folding cost per copy ($) Enter a unit cost if outsourcing; $0 for DIY

Labor & Overhead

Total labor hours for run Setup, printing, collating, folding, binding

Your hourly rate ($)

Run overhead ($) Electricity, packaging, shipping materials, etc.

Sell Price Target

Target gross margin (%) 50% = sell at 2× cost; 67% = 3× cost

Currency

Cost per copy

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true cost (materials + labor + overhead)

📄 Sheets needed (inc. spoilage)	—
🖼 Masters needed	—
🖊 Ink tubes needed	—
Cost breakdown
Ink cost	—
Master stencil cost	—
Paper cost	—
Binding & finishing	—
Labor	—
Overhead	—
Total run cost	—

Suggested sell price at 50% margin

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Master stencil cost per copy—

Ink cost per copy—

Paper cost per copy—

Labor cost per copy—

Impressions (color × page passes)—

Gross profit per copy at sell price—

Total gross profit for run—

Formula & sources: stencil.wiki Risograph Buying Guide · OEM pricing: Hallagans (2025)

What this calculator does

This tool is built for independent risograph owners — zine makers, artist publishers, and print studios — who want to know the true cost per copy of a DIY riso print run, not a quote from a third-party studio. It models every real cost: ink tube consumption, master stencils used, paper, binding, your labor at your own rate, and run overhead. From that it computes a cost-per-copy and a suggested retail price at your target margin.

How to use it

Print run & structure: Enter how many copies you're printing, total page count (must be divisible by 4 for saddle-stitch), your imposition layout (e.g. 4 pages per tabloid sheet), number of ink colors, spoilage %, and whether you print double-sided.
Ink tubes: Set your tube cost (OEM tubes run ~$45–50 from US suppliers like Hallagans as of 2025) and the impressions per tube — 7,000 is a reasonable mid-coverage default; adjust for light line art (up to ~10,000) or heavy blocks (as low as ~5,000).
Master stencils: Set roll cost and masters per roll. A standard OEM roll yields ~220 masters.
Paper, binding, labor, overhead: Enter your own unit costs. Labor is the total hours for the whole run (setup, printing, collating, folding, binding), at your hourly rate.
Set your target margin to see the recommended sell price — 50% gross margin means selling at 2× cost; 67% means 3× cost.

How masters and impressions are counted

Each unique ink color on each unique imposed sheet requires its own master stencil. For a double-sided zine, each side of each sheet is a unique impression pass. The calculator computes:

Sheets needed = ⌈copies × (1 + spoilage%) / pages_per_sheet⌉ × pages needed… adjusted for imposition
Masters needed = (sheets' unique layouts) × colors × sides printed
Impressions = sheets × colors × sides (each impression consumes a tiny amount of ink from the tube)

One master is consumed per color layer per pass setup — not per page printed. A master is burned once and then used to print the entire run of that sheet. So a 2-color, 100-copy run of a 16-page half-letter zine needs 4 unique sheet layouts × 2 colors × 2 sides = 16 masters total, regardless of how many copies you print.

When is risograph cost-effective?

The master stencil cost is fixed per color-layer-layout regardless of run length. That makes riso very efficient at higher copy counts — the per-copy master cost drops rapidly. Under ~30 copies, the master setup cost per copy dominates and digital printing is often cheaper. Over 100–200 copies, riso's low ink cost per impression pulls ahead of digital. This is why most riso studios impose minimum run sizes.

Common mistakes when costing a riso zine

Ignoring labor: Collating, folding, and stapling 100+ zines by hand takes real time. At even $15/hour this is often the biggest cost.
Forgetting spoilage: Every new master pass wastes a proof sheet. Budget 10–15% extra sheets and ink.
Forgetting double-sided impressions: A double-sided 2-color zine needs 4 ink passes per sheet — 4× the ink of a 1-color single-sided print.
Pricing for materials only: If you sell at material cost with no labor recovery, you're effectively working for free.
Using generic ink-yield estimates: If your artwork has large solid-ink areas, halve the default yield. Dense riso coverage uses far more ink per impression.

Frequently asked questions

How many masters does a risograph zine use?

Each unique ink color and each unique page layout requires its own master stencil. For a saddle-stitched zine, each sheet carries 2 spreads (4 zine pages) per side when imposed as half-letter on tabloid. A 16-page 2-color zine needs 4 unique sheet layouts × 2 colors × 2 sides = 16 masters. This calculator totals all masters across your run automatically.

How much ink does a risograph tube yield?

A 1000ml OEM RISO ink tube typically yields roughly 5,000–10,000 impressions depending on image area coverage. Light line-art designs land near the high end; dense areas of heavy coverage near the low end. The default in this calculator is 7,000 impressions per tube — edit it to match your actual coverage. Coverage estimates are your biggest accuracy lever.

How many masters are on a risograph stencil roll?

A standard OEM master stencil roll contains approximately 220 masters (stencils). As of September 2025, Hallagans (a major US riso consumables supplier) priced rolls at $50–75 depending on size, giving a per-master cost of roughly $0.23–$0.34 each.

Why do riso zine page counts have to be multiples of 4?

A saddle-stitched (folded-and-stapled) zine is made from folded sheets. Each sheet yields 4 zine pages (front and back of the fold). The most common imposition for a half-letter zine on tabloid paper fits 4 pages per sheet. Therefore the total page count must be divisible by 4 — a partial sheet is uneconomical and causes uneven folding. If you need an odd count, round up to the next multiple of 4 and leave those pages blank or use them for an extra design element.

What should I charge for my risograph zine?

At minimum you need to charge above your true cost per copy (materials + labor + overhead). Many riso zine makers use a 50% gross margin (2× cost) for online/table sales, or price at 3–5× material-only cost for wholesale. The calculator shows you both the raw cost-per-copy and a suggested sell price at your chosen margin. Factor in any table fees, Etsy fees, or platform commissions — they will reduce your effective margin.

Does spoilage really matter?

Yes — significantly at short runs. At 10% spoilage on a 50-copy run you're effectively printing 55 sheets per layout, which costs you 10% more paper, 10% more ink, and potentially an extra master. At 100-copy runs the proportional hit is the same but the absolute cost is higher. Always budget for at least one proof sheet per master (i.e., at least one per color-layer per sheet layout) plus realistic mis-registration rejects.

Note: Consumable prices and yields vary by supplier, region, and machine model. All figures are editable — replace defaults with your actual supplier prices. This tool is an estimate for planning purposes and does not constitute financial or business advice.