How big is a trillion?
We track it, visualize it, and explain it.

itrillion.com follows the trillion-dollar club — every company worth over $1 trillion — maps the milestones from Apple's first trillion in 2018, and makes twelve zeros something you can actually picture.

14
Club members tracked
~$5.5T
Largest member (Nvidia, approx.)
2018
First $1T company (Apple)

The tracker

The trillion-dollar club, right now

Fourteen companies are worth more than a trillion dollars. Figures below are approximate, compiled from public market data as of October 2026 — not live quotes.

# Company Approx. market cap First crossed $1T
1
NVDA Nvidia
~$5.5TMay 2023
2
AAPL Apple
~$4.0TAug 2018
3
MSFT Microsoft
~$4.0T2019
4
GOOGL Alphabet
~$3.0TJan 2020
5
AMZN Amazon
~$2.5TSep 2018
6
META Meta
~$2.0T2024

See all 14 members, the watchlist, and our methodology →

The timeline

From one to fourteen in eight years

Apple stood alone in 2018. Then the AI boom turned trillion-dollar milestones into a calendar event.

Aug 2018 — Apple

The first company in history to close above $1 trillion in market value.

Full timeline →

May 2023 — Nvidia

AI demand carries Nvidia past $1T. Two years later it passes $5T, another first.

Full timeline →

Jun 2026 — SpaceX

SpaceX debuts on the public market already valued past $2 trillion.

Full timeline →

The scale

A trillion is bigger than you think

Twelve zeros. If you stacked a trillion dollars in $100 bills, the stack would reach about 680 miles high — roughly 2,460 Empire State Buildings.

Stack it

$1 trillion in $100 bills weighs 10,000 tons and stacks 679 miles high.

See the visualizations →

Count it

Counting to a trillion at one number per second takes 31,710 years.

See the visualizations →

Spend it

Spend $1 million every day and a trillion lasts 2,740 years.

See the visualizations →

Learn

Trillion-dollar literacy

The explainers people actually search for, in plain English.

What is a trillion?

Twelve zeros, how it compares to a million and a billion, and why our brains can't picture it.

Read →

What is market cap?

Price times shares. What it measures, what it doesn't — and why it's not cash in a vault.

Read →

Who will be the first trillionaire?

The contenders, the dated numbers, and the math of what it actually takes.

Read →

Deep-dive guides

Thirteen long-form guides: valuation, scale, market history, and the trillionaire race — explained at length.

Browse →