Tiered SaaS Plan Cost Calculator

About this calculator

Tiered SaaS pricing typically bundles a base subscription fee with a number of included seats, then charges a per-seat overage rate once you exceed that allotment — and often applies an annual-billing discount (commonly 15-20% off the monthly-equivalent rate) as an incentive to commit for a year instead of paying month to month. The real monthly cost is rarely just the sticker price: it's the base fee plus (extra seats × overage rate), averaged out over the billing term.

SaaS buyers — IT procurement, finance teams, and startup founders comparing vendors — run this math when evaluating tools like project management or CRM software, because list prices are built to look simple on a pricing page while the actual per-seat cost at a company's real headcount can differ substantially, especially once a team grows past the included-seats threshold. Vendors and revenue teams use the same calculation in reverse when modeling how a pricing tier change affects existing customers' bills.

This calculator takes your plan tier, seat count and billing term and returns the real monthly and yearly cost, including cost per seat.