AI Unit Economics Calculator
Compare what a customer pays with the AI and variable cost they cause.
In short
Formula: Contribution = Revenue - (AI cost + Other variable cost); Margin = Contribution / Revenue
What this calculator does
Contribution margin as used in unit economics: revenue less the variable costs the user entered, over revenue. Only the costs entered are subtracted — no fixed cost, overhead or target margin is applied.
Use it to turn Currency, Revenue per customer for the period, AI cost per customer, Other variable cost per customer (optional), and the other shown inputs into a checked result you can compare, copy, or rerun with different assumptions.
The page shows the formula, a numeric worked example, and the assumptions that affect this professional & industry calculation.
Inputs and what they mean
- Currency
- — Amounts are shown in the currency you pick. No exchange rate is applied..
- Revenue per customer for the period
- — What one customer pays you in the period..
- AI cost per customer
- — The AI cost one customer causes in the same period..
- Other variable cost per customer (optional)
- — Optional component. Leave at 0 to exclude it from the result..
- Price as of (optional)
- — The date you took these prices. It is shown with the result so the figure is never read as a current vendor price..
- Price source (optional)
- — Where the prices came from. Shown with the result..
How to use it
- Enter your own figures — the calculator never fills in a rate, price or benchmark for you.
- Press Calculate to see the result.
- Read the formula, variables, assumptions and source below the result before you rely on it.
Formula
Contribution = Revenue - (AI cost + Other variable cost); Margin = Contribution / Revenue.
Inputs used: Currency, Revenue per customer for the period, AI cost per customer, Other variable cost per customer (optional), Price as of (optional), Price source (optional).
Edge handling: Revenue per customer for the period is required.; Revenue per customer for the period cannot be negative.; Revenue per customer for the period must be no more than 1000000000000.; AI cost per customer is required.; AI cost per customer cannot be negative..
Worked example
$60 of revenue against $14.50 of AI cost per customer
- Start with Currency: USD, Revenue per customer for the period: 60, AI cost per customer: 14.50, Other variable cost per customer (optional): 6.
- Apply the method: Contribution = Revenue - (AI cost + Other variable cost); Margin = Contribution / Revenue.
- Only the variable costs you entered are subtracted; no benchmark margin is applied.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
- Inputs outside the supported range are rejected rather than forced into a result.
- The result depends on the values you enter for this ai unit economics calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.
Reference: The Linux Foundation — Unit economics — FinOps Framework
Last reviewed:
Common questions
Where does this formula come from?
FinOps Framework capability: unit economics — cost per business unit is total cost for a period divided by the units delivered in the same period; a workload's cost is the sum of its metered components charged at the rates the organisation actually pays. See the source link on this page.
What kind of calculation is this?
Contribution per customer and the margin it represents, from the revenue and variable costs the user entered. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.
What are its limits?
Arithmetic over the figures entered — it cannot tell whether the metering, logs or invoices behind them are complete. The result is only as current as the rates entered; a rate taken months ago is not a current price. Tiered, committed-use, cached-input and minimum-spend pricing are not modelled unless the user has already reduced them to the rates entered. Contribution is not profit: fixed costs, support and acquisition cost are not included unless the user entered them as variable cost. A single period tells you nothing about a customer's lifetime value.
How do I use the AI Unit Economics Calculator?
Enter the required values for Currency, Revenue per customer for the period, AI cost per customer, Other variable cost per customer (optional), Price as of (optional), and the other fields shown. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.
What formula does the AI Unit Economics Calculator use?
Contribution = Revenue - (AI cost + Other variable cost); Margin = Contribution / Revenue The visible formula section above lists the calculation path and the edge cases the page handles, so the result can be checked without relying on the form alone. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.
Can the AI Unit Economics Calculator be used for exact decisions?
Use it as a calculation aid, not as a substitute for checking the underlying rule, contract, policy, or professional advice that applies to your situation. When a result depends on local rules, personal details, prices, or dates, enter those values yourself and confirm them before acting.
Formula, source and verification
Contribution per customer and the margin it represents, from the revenue and variable costs the user entered.
The question it answers: What does one request or one customer cost us in AI, and does the revenue cover it?
The formula
Contribution = Revenue - (AI cost + Other variable cost); Margin = Contribution / Revenue
- R — Revenue per customer
- (currency). What one customer pays in the period.
- Ca — AI cost per customer
- (currency). AI cost one customer causes in the same period.
- Co — Other variable cost per customer
- (currency). Optional; excluded at zero.
- M — Contribution margin
- (%). Contribution over revenue.
Units: Currency in, currency and a percentage out.
What kind of calculation this is
Business input model. The answer depends on business figures only you can supply, such as your own costs, rates or volumes. No market or benchmark values are assumed for you.
Method
Contribution margin as used in unit economics: revenue less the variable costs the user entered, over revenue. Only the costs entered are subtracted — no fixed cost, overhead or target margin is applied.
Assumptions built into the result
- Mathematical: All the figures entered cover the same measurement period.
- Mathematical: Token counts, requests and hours are taken from the user's own logs or bill.
- Mathematical: Revenue and costs are for the same customer and the same period.
- Mathematical: The costs entered are variable with the customer.
Figures this calculator will never guess for you
- No target, benchmark, industry average or typical figure is supplied for any value.
- A definition is never presented as a goal: a cost per request is not a target cost per request, and a contribution margin is not a target margin.
- No model price, GPU price, rate card or list price is built in; every amount is entered by the user.
- No token count, context length or output length is assumed on the user's behalf.
- No currency conversion is applied; amounts stay in the currency selected.
- No target margin, benchmark margin or acceptable AI cost share is supplied.
- No overhead, fixed cost or discount is assumed.
Limitations
- Arithmetic over the figures entered — it cannot tell whether the metering, logs or invoices behind them are complete.
- The result is only as current as the rates entered; a rate taken months ago is not a current price.
- Tiered, committed-use, cached-input and minimum-spend pricing are not modelled unless the user has already reduced them to the rates entered.
- Contribution is not profit: fixed costs, support and acquisition cost are not included unless the user entered them as variable cost.
- A single period tells you nothing about a customer's lifetime value.
Source and version
- Standard or reference
- FinOps Framework — unit economics and workload cost — FinOps Foundation (FinOps Framework capability: unit economics — cost per business unit is total cost for a period divided by the units delivered in the same period; a workload's cost is the sum of its metered components charged at the rates the organisation actually pays.)
- Published source
- The Linux Foundation — FinOps Framework
- Formula version
- Version 1
- Verification
- Reviewed against the cited source on
- How much weight the source carries
- Standards or government
- Applies to
- Currency
- Amounts stay in the currency you choose; no exchange rate is applied.
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