Game Storage Requirement Calculator

Work out game storage requirement instantly with clear inputs, formula shown and shareable results.

About Game Storage Requirement Calculator

Each game is sized at its install footprint plus an update allowance, and drive capacity is reduced to about 93% to reflect formatting and reserved space. The formatting loss plus patch growth is why a 1 TB drive holds far fewer modern titles than the advertised capacity implies.

Formulas

Storage needed

GB = games x average size x (1 + update allowance)

Usable capacity

usable = advertised capacity x 0.93

Worked example

With the default values below, Game Storage Requirement Calculator returns Storage required of 864.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Games installedminimum 1: 12
Average install sizeminimum 0.1 GB: 60 GB
Allowance for updates and savesaccepts 0–100 %: 20 %
Drive capacityminimum 1 GB: 1,000 GB

Results

Storage required: 864.0 GB
Space left on the drive: 66.0 GB
Games that fit on the drive: 12
Usable capacity after formatting: 930.0 GB

Step by step

1Values used
2Storage needed
3Usable capacity
4Storage required= 864.0 GB
5Space left on the drive= 66.0 GB
6Games that fit on the drive= 12
7Usable capacity after formatting= 930.0 GB

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Game Storage Requirement figure worked out?

GB = games x average size x (1 + update allowance). Each game is sized at its install footprint plus an update allowance, and drive capacity is reduced to about 93% to reflect formatting and reserved space.

Why does this matter?

The formatting loss plus patch growth is why a 1 TB drive holds far fewer modern titles than the advertised capacity implies.

What do I need to enter?

Enter games installed, average install size, allowance for updates and saves, drive capacity. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.