The mental math references for internet usage are below. At the bottom of the page you’ll find a list of sources for each figure, with the precise data point from that source.
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Internet users
Global internet users
U.S. internet users
China internet users
EU internet users
India internet users
Global smartphone users
Internet of Things (IoT) devices
5 billion
300 million
1 billion
400 million
1 billion
6 billion
15 billion
E-commerce and advertising
Global e-commerce sales
Global digital ad spending
Cost per click in digital advertising
$5 trillion
$600 billion
$2
Internet speed
Average internet speed in U.S.
Average internet speed in EU
Average internet speed in China
Average internet speed in India
200 Mbps
100 Mbps
200 Mbps
50 Mbps
Internet subscribers and users
Netflix subscribers
Amazon Prime subscribers
YouTube daily active users
Facebook daily active users
Instagram daily active users
Twitter daily active users
LinkedIn users
TikTok users
200 million
150 million
120 million
2 billion
2 billion
200 million
900 million
800 million
Data and coverage
Global data centers
Global data generated
Average data usage per smartphone
5G network coverage in U.S.
4G network coverage globally
Global Wi-Fi hotspots
8,000
100 zettabytes/year
10 gigabytes/month
50%
80%
500 million
Market size
Google’s market share in search
Chrome browser market share
Cybersecurity market size
Cloud computing market size
SaaS market size
Global online gaming market
Global streaming market
80%
60%
$200 billion
$500 billion
$250 billion
$25 billion
$500 billion
Note: all dollar amounts are in USD
Email and websites
Average email users
Average email sent daily
Average website loading time
VPN users worldwide
Average cost of a domain name
4 billion
300 billion
3 seconds
1 billion
$10USD/year
Sources:
Internet users
Global internet users: 5.19 billion — Data Reportal
U.S. internet users: 311.3 million— Data Reportal
China internet users: 1.079 billion— Statista
EU internet users: 445.8 million— Internet World Stats
India internet users: 1.24 billion— Statista
Global smartphone users: 6.37 billion— Bank My Cell
Internet of Things (IoT) devices: 15.14 billion— Exploding Topics
E-commerce and advertising
Global e-commerce sales: $5.2 trillion — Statista
Global digital ad spending: $626.86 billion — Statista
Cost per click in digital advertising: $2.59 — Clicta Digital
Internet speed
Average internet speed in U.S.: 207.32 Mbps – SpeedTest.net
Average internet speed in EU: 103.3 Mbps– European Data Journalism
Average internet speed in China: 218.8 Mbps– Oberlo
Average internet speed in India: 53.42 Mbps– SpeedTest.net
Internet subscribers and users
Netflix subscribers: 238.39 million — Statista
Amazon Prime subscribers: 168.5 million — Statista
YouTube daily users: 122 million — DemandSage
Facebook daily active users: 2.06 billion — Statista
Instagram daily active users: 2 billion — Statista
Twitter daily active users: 237.8 million — Bank My Cell
LinkedIn users: 930 million — LinkedIn
TikTok users: 834.3 million — Statista
Data and coverage
Global data centers: 8,000 — TechJury
Global data generated: 125 zettabytes/year — Statista
Average data usage per smartphone: 8.9 gigabytes/month — Statista
5G network coverage in U.S.: 49.2% — Fierce Wireless
4G network coverage globally: 85% — Ericsson
Global Wi-Fi hotspots: 549 million — VPN Mentor
Market size
Google’s market share in search: 83.49% — Statista
Chrome browser market share: 61.8% — Browser Stack
Cybersecurity market size: $202.72 billion — Grandview Research
Cloud computing market size: $569.31 billion — Fortune Business Insights
SaaS market size: $257.47 billion — Skyquestt
Global online gaming market: $26.14 billion — Statista
Global streaming market: $554.33 billion — Fortune Business Insights
Email and websites
Average email users: 4.26 billion — Statista
Average email sent daily: 347.3 billion — Oberlo
Average website loading time: 2.5 seconds — ToolTester
VPN users worldwide: 1.5 billion — Exploding Topics
Average cost of a domain name: $10-20USD/year — Forbes