How to use this calculator
A $29 plan with $4.50 in AI cost and $2 in other variable cost has a different margin profile than a normal SaaS product.
SaaS
AI SaaS Unit Economics Calculator
Use this to see whether an AI SaaS user is profitable after model and variable costs.
Formula
Contribution per user = price - AI cost - other variable cost.
What the result means
This page explains the arithmetic behind the estimate so you can adjust assumptions before using the number in planning.
Read the guide
Understand AI SaaS unit economics, contribution margin, and why API costs should be modeled per user.
AI SaaS Unit Economics: How to Know If Each User Is ProfitableCommon questions
Does this include fixed costs?
No. It focuses on user-level variable economics.
Why separate AI cost?
AI costs can scale directly with usage and should not be hidden inside generic infrastructure.
Is this accounting advice?
No. It is a planning model.