Data volume of IoT connected devices worldwide 2018 and 2025

The statistic shows the overall data volume of connected devices/IoT connections worldwide in 2018 and 2025. By 2025, total data volume of connected IoT devices worldwide is forecast to reach 79.4 zettabytes (ZBs).

Data volume of internet of things (IoT) connections worldwide in 2018 and 2025

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Release date

June 2019



Survey time period


Supplementary notes


The 2018 figure was calculated by Statista based on 2025 figure and 2018-2025 CAGR provided by the source.

1 zettabyte = 1 billion terabytes

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Statistics on "Internet of Things Europe"

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