Market sizing & growth · Core
Market penetration
Also called: penetration rate
ELI5
How much of the possible market is already using the product.
Used in conversation
“Low market penetration does not automatically mean easy growth.”
Definition
The extent to which a product or service is used by the potential customer population.
Here “Market penetration” means: The extent to which a product or service is used by the potential customer population.
Pitch context
You will see “Market penetration” in strategy decks, market analyses, business plans and planning workshops when the discussion reaches market sizing & growth.
Why it matters: It helps a reader interpret market sizing & growth without confusing the measure, decision, role or evidence being discussed.
Connected terms
- Market penetrationThe same visible label “Market penetration” names different concepts.
- Penetration rateThe search label “penetration rate” can route to both entries.
Sources & evidence · 5
Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.
- Strategyzer — Business Model Canvas resourcesSupporting source family · practitioner · checked 2026-08-16
- Strategyzer — Value Proposition Canvas resourcesSupporting source family · practitioner · checked 2026-08-16
- LEANSTACK — Lean CanvasSupporting source family · practitioner · checked 2026-08-16
- U.S. Department of Justice Antitrust Division — Herfindahl-Hirschman IndexSupporting source family · primary · checked 2026-08-16
- U.S. Census Bureau — Business and economy dataSupporting source family · primary · checked 2026-08-16