1. Analyzing the total number of potential customers: Start by looking at the total number of people who could potentially be interested in the software you’re offering. This is the most basic way to calculate TAM, and it’s often used by startups to gauge the potential size of their product market.

2. Estimating the total amount of money spent in the market: Another way to calculate TAM is to look at the total amount of money that is being spent on related products or services. This can be an estimate based on industry research or based on customer surveys.

3. Estimating the total size of the addressable market: The third way to calculate TAM is to look at the total size of the addressable market. This is the total number of people who are likely to be interested in the software, and who are able to purchase it. This can be estimated by looking at demographics, geographic location, and other factors related to the potential customer base.

4. Calculating the total market opportunity: The fourth way to calculate TAM is to look at the total market opportunity. This is the total number of potential customers who are likely to be interested in the software and who can afford to purchase it. This can be estimated by looking at current customers, potential customers, and related markets.

p.s This article was written by GPT3 and edited by me.