Calculators/Data and utilities
Everyday utility

File Size / Storage Calculator

Convert file sizes and estimate how much storage a set of files will use. Use this Data and utilities tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
FAQ
Related tools

Calculator tool

Storage utility
File Size / Storage Calculator

Total storage

Result

30 GB

Total MB

30,000

Total GB

30

Total TB

0.03

Storage vendors often use decimal units. Operating systems may show binary units, so displayed capacity can differ.

How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

The explanation should clarify decimal vs binary units and common storage examples.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

What is the difference between GB and GiB?

GB is decimal while GiB is binary; the calculator can expose both modes.

Can this estimate video storage?

Yes. Video presets can be added for creators.