What is the cheapest printer ink per page?

As of September 21, 2026, 18:39 UTC, the cheapest printer ink per page BuyPerUnit tracks is the Faslvink Compatible Ink Refill Bottles Replacement for Epson 502 Ink Black at $0.0006/page ($16.99 at Amazon). The median across 883 in-stock listings is $0.0400/page; anything under $0.0175/page beats three quarters of them. Price per page is the cartridge or bottle price divided by its manufacturer-rated page yield, so high-yield (XL) cartridges and ink-tank bottles dominate the top of the ranking.