---
title: Storage Size
description: "4i Platform utilizes an adaptive algorithm of data compression that is based on the data type and a historical analysis of the signal.  Therefore, it is impossible to calculate the storage used by a variable. However, the *maximum* daily storage…"
url: "https://support.4iplatform.com/?docs=storage-size"
updated: "2025-04-21"
category: 4i Cloud
---

# Storage Size

4i Platform utilizes an adaptive algorithm of data compression that is based on the data type and a historical analysis of the signal.  Therefore, it is impossible to calculate the storage used by a variable.

However, the *maximum* daily storage size of a variable can be determined by the following formulas:

- For Numerical Tags: 1980 Mb / ScanRate  [milliseconds]
- For Binary Tags: 860 Mb / ScanRate [milliseconds]

A numerical tag that is sampled at one second occupies a maximum of 2Mb per day, but the storage size for a typical industrial numerical variable after compression is approximately **750 Kb per day.**