# TAM / SAM / SOM Calculator

Estimate total, serviceable, and obtainable market size from customers, annual revenue per customer, target-market coverage, and expected market share.

Canonical: https://finamodel.com/tools/tam-sam-som-calculator

## How to use it

Open the interactive calculator, enter your assumptions, and review the calculated outputs. Inputs stay in your browser.

## Related resources

- [Financial model templates](https://finamodel.com/templates)
- [Financial modelling guides](https://finamodel.com/blog)