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Printer Ink Cost Calculator: See What Your Printer Really Costs Per Page

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If you've ever wondered whether you're paying too much for printer ink — or whether switching to compatible cartridges would actually save you money — we built the tool to answer that question. Our Printer Ink Cost Calculator shows you the real cost per page for any cartridge, projects your annual and lifetime ink spend, and lets you compare OEM, compatible, and remanufactured options side by side. This post explains how to use it and what it reveals about the true cost of printer ink.

Why "Cost Per Page" Is the Number That Actually Matters

Most people compare printer ink by price per cartridge. That's the wrong number. A $12 standard-yield cartridge and a $28 high-yield cartridge from the same brand may print the same number of pages — or the high-yield may print three times as many. The only way to compare fairly is cost per page: the price of the cartridge divided by its rated page yield.

The formula is simple:

Cost per page = Cartridge price ÷ Page yield

A $28 cartridge rated for 825 pages costs $0.034 per page. A $12 cartridge rated for 180 pages costs $0.067 per page — nearly double. Our calculator automates this math and applies it to your actual print volume, so you can see annual and lifetime costs in real dollars.

How to Use the Printer Ink Cost Calculator

The calculator is free to use — no signup required. Here's what each field does:

  • Cartridge price: Enter the price of the cartridge you're comparing (OEM, compatible, or remanufactured)
  • Page yield: Enter the manufacturer's rated yield (found on the cartridge box or product page)
  • Monthly print volume: How many pages do you typically print per month? Even a rough estimate works.
  • Ink type selector: Switch between OEM, compatible, and remanufactured to see side-by-side comparisons instantly

The calculator outputs your cost per page, monthly spend, annual spend, and cumulative 3-year cost. It also shows total savings when switching from OEM to compatible.

A Real-World Example: HP 67XL

Here's what the calculator reveals for one of the most popular home printer cartridges:

  • HP 67XL (OEM, color): ~$28 for 200 pages = $0.14 per page. At 100 pages/month, that's $168/year in ink alone.
  • Compatible HP 67XL (color): ~$8–10 for 200 pages = $0.04–0.05 per page. At 100 pages/month, that's $48–60/year.
  • Annual savings: $108–$120. Over 3 years, that's $324–$360 saved — just on color ink.

Browse HP 67XL compatible cartridges at Castle Ink.

This math plays out similarly across nearly every cartridge line. Compatible cartridges from Castle Ink are manufactured to the same ISO yield standards as OEM cartridges, so the page yield numbers are comparable — not inflated.

What the Calculator Reveals About Subscription Ink Programs

HP's Instant Ink program and similar subscription services advertise low monthly rates (e.g., $5.99/month for 100 pages). The calculator helps you stress-test these claims. At $5.99 for 100 pages, you're paying $0.06/page — more than double what compatible ink costs at typical volumes.

Subscription ink programs also add hidden costs: if you print fewer pages than your plan covers, you're paying for pages you didn't use. If you print more, you pay overage fees. And if you cancel, your printer may stop working until you purchase a non-subscription cartridge. Our calculator's monthly volume field makes these tradeoffs visible in real numbers.

The "Printers to Avoid" Angle

The calculator also tells you something useful when shopping for a new printer: if a printer's OEM cartridge has a low page yield (common in budget inkjets), your annual ink cost can exceed $200 even at moderate print volumes. This is the "cheap printer trap" — a $60 printer that costs $180/year to run.

Before buying any printer, run its cartridge specs through the calculator. The printers that score best — lowest cost per page with compatible ink — tend to be Brother INKvestment models, Canon PIXMA, and Epson EcoTank. See our full breakdown in which printers work best with compatible ink in 2026.

Printers With the Best Economics for Compatible Ink

Based on our calculator analysis across hundreds of printer models, here are the standout picks:

The Page Yield Myth

One caveat worth knowing: manufacturer page yield ratings are based on ISO standard test pages — documents printed at 5% coverage, meaning pages that are mostly white with light text. Real-world documents (with images, formatting, color, or dense text) typically yield 20–40% fewer pages than the rated number. The calculator uses rated yields, so your real cost per page may be slightly higher. We note this so you can factor it in — and so you understand why a "700-page cartridge" might actually run out at 450 pages on your work documents.

This doesn't change the OEM-vs-compatible comparison: both are rated using the same ISO standard, so the savings percentages hold.

Try the Calculator

The Printer Ink Cost Calculator is the fastest way to see whether your current ink setup is costing you more than it should — and how much you'd save switching to compatible cartridges from Castle Ink.

Also worth reading: our guide to best printers that don't lock you into OEM ink, and if you're dealing with HP firmware blocking your cartridges, see how to stop HP firmware updates from blocking your ink.

Shop compatible cartridges at Castle Ink:

Written and reviewed by — Founder of Castle Ink, 20+ years in the printer & imaging supplies industry.

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