Your Market Size Number Is Meaningless

I’ve read dozens of business plans, and almost all of them had a line that read something like……….. “The global XYZ market is worth $490 billion.”

And, I’m like, okay. But what does that have to do with the little shop you’re opening on a corner in your town?

Nothing, honestly.

Your shop isn’t fighting for a slice of $495 billion. It’s fighting for the person who walks past your door at 8 am and picks you or the place across the street.

I get the instinct.

Every template has a “market size” box. Every guide says to show how big the industry is. Ask AI, and it hands you the global figure before you finish typing.

So in it goes, box ticked, done.

But whoever reads it, your bank, a lender, or even you in six months, knows that the number doesn’t mean much on its own.

Wait, you don’t have to delete it

Quick clarification, because people overcorrect here. You can keep the $495 billion line. It’s fine as a one-sentence opener.

The mistake is stopping there. A big number with nothing behind it is just trivia. A big number followed by what it means for your block is context.

So keep it, then immediately zoom in.

The numbers that actually matter

You want small and specific:

• Your local market (forget worldwide) — your town, or honestly just your neighborhood.
• People nearby (not “total addressable market”) — how many actually live, work, and commute within reach of you.
• Real growth signals (no planet-wide percentage) — a new apartment block going up, a competitor closing, an office moving in.

Picture two plans.

One says, “The coffee industry is a $495B market growing 4.6% a year.”

The other says, “45,000 people commute through here daily, twelve coffee shops already exist, four do exactly what we’d do, and a 300-unit building is going up two blocks away.”

The first took thirty seconds on Google. The second tells me you stood on the corner and looked.

When the big number does count

To be fair, sometimes it does.

Building something meant to scale way past your zip code, like an app or a product headed for shelves nationwide? Then the total market size is a fair question, because that’s the whole bet.

But a neighborhood coffee shop isn’t promising to take over the world.

It’s promising to make rent from a defined patch of customers. For that, “the global market is huge” is beside the point.

What’s actually worth more than the number

Here’s the part founders skip: in a market or industry section, what’s happening right now beats any imaginary number.

Things like:

• Where the industry is heading: trends shaping how people buy.
• What’s new: formats, habits, tech changing the game.
• Recent shifts and news that affect your specific space.

This is the stuff that shows you understand your market as a living thing, not a static dollar figure. And it’s genuinely hard to research well on your own.

Then do the legwork no tool can do

The local stuff, you find by looking:

The best data, though? Stand on the corner one afternoon and count people walking by. Sounds silly. It’s also more convincing than any stat, because almost nobody bothers.

In a nutshell

That market section isn’t there to impress anyone with how big the industry is.

It’s there to show you understand the small, specific corner you’re actually planning to win.

A real number from your block — backed by what’s happening in your industry right now — beats a giant number from the internet. Always.

Until the next time,

Happy business planning