Free Tool for Founders

Calculate your
TAM / SAM / SOM

Stop guessing your market size. Instantly calculate accurate, data-backed numbers for your pitch deck and business plan.

Interactive TAM / SAM / SOM Calculator

Total global universe of people who could use your product.

Average $ earned per customer per year.

The % of the TAM you can practically reach.

The % of the SAM you can realistically capture in years 1-3.

Average marketing & sales cost to win 1 customer.

Percentage of revenue left after direct costs (hosting, API limits).

Total Addressable Market (TAM)

$12,000,000

The total market demand.

Serviceable Available Market (SAM)

$2,400,000

The segment targeted by your products/services.

Serviceable Obtainable Market (SOM)

$120,000

Your realistic revenue target.

Customers Needed

100

To hit your SOM target.

Target MRR

$10,000

Monthly Recurring Revenue.

LTV Goal

$3,600

Assuming 3-year retention.

LTV:CAC Ratio

7.2:1

Over 3:1 is excellent.

Payback Period

5.0 mo

Months to recover CAC.

Gross Margin MRR

$8,000

MRR after direct costs.

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What is TAM?
Total Addressable Market is the total global demand for your product or service. If 100% of the people who could potentially buy your product did so, this is the revenue you would generate. VCs look for large TAMs (often $1B+).
What is SAM?
Serviceable Available Market is the segment of the TAM targeted by your products and services which is within your geographical or operational reach. It is the realistic portion of the market you can serve right now.
What is SOM?
Serviceable Obtainable Market is the portion of your SAM that you can realistically capture in the short term (years 1-3). This factors in your current resources, competition, and sales capabilities. It is your immediate revenue goal.
What is CAC?
Customer Acquisition Cost is the total cost of sales and marketing required to earn a new customer. A healthy SaaS business usually aims to keep this number as low as possible while scaling.
What is LTV?
Lifetime Value is the total amount of money a customer is expected to spend on your products during their lifetime as a customer. Higher retention heavily increases this metric.
LTV:CAC Ratio
The LTV to CAC Ratio measures the relationship between the lifetime value of a customer and the cost of acquiring that customer. An optimal ratio is generally considered to be 3:1 or higher.
What is MRR?
Monthly Recurring Revenue is the predictable total revenue generated by your business from all active subscriptions in a single month. It is the lifeblood of a SaaS startup.
Gross Margin
Gross Margin is the percentage of revenue you retain after accounting for the direct costs associated with running your service (e.g., server hosting, LLM API costs, database operations).
Payback Period
The Payback Period is the number of months it takes for a customer's gross profit to cover their initial Customer Acquisition Cost. Investors prefer a payback period of under 12 months.