The Market Size Calculator is a free, no-signup tool from Vibe Ideas. Calculate Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) for your startup. Formula: TAM = Total Market Demand | SAM = TAM x Serviceable % | SOM = SAM x Obtainable %.
What does the Market Size Calculator do?
Calculate Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) for your startup.
TAM/SAM/SOM helps investors understand your opportunity size and helps you set realistic growth targets. Focus on SOM for realistic near-term projections.
How does the Market Size Calculator work?
The Formula: TAM = Total Market Demand | SAM = TAM x Serviceable % | SOM = SAM x Obtainable %
- Gather your inputs. Collect the values needed: Total Addressable Market - TAM ($), % of TAM You Can Serve (SAM %), % of SAM You Can Capture (SOM %). Use real numbers from your analytics or finance dashboard when possible.
- Enter the numbers. Type each value into the matching field on the Market Size Calculator. The calculator runs entirely in your browser — nothing is stored or sent to a server.
- Read the result and act on it. TAM/SAM/SOM helps investors understand your opportunity size and helps you set realistic growth targets. Focus on SOM for realistic near-term projections.
Inputs you'll need
- Total Addressable Market - TAM ($)
- % of TAM You Can Serve (SAM %)
- % of SAM You Can Capture (SOM %)
Why it matters for your startup
TAM/SAM/SOM helps investors understand your opportunity size and helps you set realistic growth targets. Focus on SOM for realistic near-term projections.
Frequently Asked Questions
What is the Market Size Calculator?
Calculate Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) for your startup.
Why should I use the Market Size Calculator?
TAM/SAM/SOM helps investors understand your opportunity size and helps you set realistic growth targets. Focus on SOM for realistic near-term projections.
How is the Market Size Calculator calculated?
The Market Size Calculator is calculated using the following formula: TAM = Total Market Demand | SAM = TAM x Serviceable % | SOM = SAM x Obtainable %.
Is the Market Size Calculator free?
Yes — the Market Size Calculator is 100% free and requires no signup, account, or credit card. Run it as many times as you need while iterating on your startup.
How accurate is the Market Size Calculator?
The output reflects the inputs you provide. For directional planning and pitch decks, it is reliable. For board-level financial decisions, treat the result as a starting point and stress-test with alternative scenarios.
Related Startup Calculators
- Free Break-Even Analysis Calculator — Calculate how many units you need to sell or customers you need to cover all your fixed and varia...
- Free Startup Runway Calculator — Calculate how many months your startup can operate before running out of cash, factoring in burn ...
- Free Return on Investment (ROI) Calculator — Calculate Return on Investment for marketing campaigns, product development, or any business deci...