MW4 Pre-Load Size Calculator: SSD Space, Partition & Download Time

Will Modern Warfare 4 fit on your drive? The MW4 pre-load size calculator below adds up the packs you pick for PS5, Xbox or PC, then shows the SSD space you need, the download time at your internet speed and the exact partition size for Windows.

With Call of Duty: Modern Warfare 4 (MW4) kicking off its Campaign Early Access today and the full global Multiplayer and DMZ Extraction launch arriving on October 23, 2026, players across PS5, Xbox Series X|S, Steam, and Battle.net are running into the same yearly roadblock: “Not Enough Free Storage Space on SSD.”

Use the MW4 Pre-Load Size, SSD Partition & Download Time Calculator above to pick the exact Call of Duty HQ modules you plan to play, enter your internet download speed in Mbps, and immediately see your real-world download time, temporary unpacking buffer requirement, console SSD percentage impact, and the exact Megabyte (MB) partition size to type into Windows 11 Disk Management.

What Is the MW4 Pre-Load Size, SSD Partition & Download Time Calculator?

The MW4 Pre-Load Size, SSD Partition & Download Time Calculator is a modular storage and network bandwidth utility engineered specifically for the Call of Duty HQ (IW 9.5 Engine) file architecture. Unlike generic download calculators that only divide file size by theoretical internet speed, our tool models how PlayStation 5, Xbox Series X|S, Steam, and Battle.net actually download, stage, decompress, and allocate blocks on solid-state drives.

When you install Call of Duty: Modern Warfare 4, you are no longer downloading a single monolithic game file. Instead, CoD HQ divides the installation into four distinct content packs plus an optional high-resolution texture streaming cache:

• CoD HQ Base Launcher + Warzone Shared Assets (65 GB): The mandatory core engine framework containing the user interface, anti-cheat kernel (RICOCHET), shared operator models, weapon audio banks, and Warzone integration files.
• MW4 Single-Player Campaign Pack (42 GB): Unlocks during Early Access (October 16) and contains high-bitrate 4K pre-rendered cinematics, single-player mission geometry, and campaign AI scripts. Once you beat the campaign and earn your mastery blueprint rewards, you can uninstall this 42 GB pack to reclaim space before October 23.
• MW4 Core Multiplayer Pack (55 GB): Unlocks on October 23 and powers all 6v6 Core maps, Hardcore playlists, Ground War battle maps, Gunsmith weapon attachments, and Firing Range assets.
• MW4 DMZ Extraction Mode Pack (38 GB): Unlocks on October 23 and installs the large-scale extraction zones, faction mission logic, dynamic weather shaders, and AI combatant behaviors.
• On-Demand 4K High-Resolution Texture Cache (+24 GB Reserve): An optional local SSD allocation for players running 1440p or 4K Ultra monitors on PC or PlayStation 5 Pro who want to prevent mid-match packet burst caused by texture streaming over Wi-Fi.

Why We Built This Tool (Skipping the 2,000-Word Launch Fluff)

Every October, thousands of gamers search Google for a simple answer: “How many GB is Modern Warfare 4 on PS5 and how long will my pre-load take?” Instead of getting a fast, accurate number, you are forced to scroll past 2,000 words of repetitive filler explaining what Call of Duty is, when the franchise started, and vague estimates like “around 150 to 250 GB depending on your platform.”

Even worse, static articles completely ignore the three hidden storage traps that cause MW4 pre-loads to fail at 99%:

1. The Temporary Decompression & Shader Staging Buffer: Steam, Battle.net, and console operating systems cannot overwrite compressed archive chunks in-place without temporary scratch space. Even if your selected MW4 packs total 200 GB, Steam requires an additional 18% staging buffer (up to 236 GB total free space) while decrypting pre-load depot files on launch night.
2. Advertised SSD Size vs. Usable Console OS Capacity: A base PlayStation 5 is marketed with an 825 GB SSD, and an Xbox Series S is marketed as 512 GB. However, after binary conversion and system firmware reservations, a launch PS5 only gives you 667.2 GB of usable space, and an Xbox Series S only gives you 364.0 GB.
3. ISP Megabits (Mbps) vs. Launcher Megabytes (MB/s) + TCP Overhead: Internet Service Providers advertise speeds in Megabits per second (Mbps), while Steam, Battle.net, and PlayStation Network display download progress in Megabytes per second (MB/s). Furthermore, TCP/IP packet headers, TLS encryption, and CDN throttling reduce real-world throughput to roughly 88% of your line rate.

We built this calculator at AxeeTech so you can check or uncheck the exact MW4 packs you want in two seconds and get verified, hardware-accurate numbers above the fold.

How to Use the MW4 Pre-Load & SSD Calculator (Step-by-Step Guide)

1. Select Your Gaming Platform: Click PS5 (Kraken), Xbox Series X|S, Steam (PC), or Battle.net (PC) in Step 1. The calculator automatically adjusts each pack’s file size multiplier and temporary unpacking overhead for that platform’s file system.
2. Check the Game Packs You Want Installed: In Step 2, check or uncheck MW4 Campaign (42 GB), MW4 Multiplayer (55 GB), and DMZ Extraction Mode (38 GB). Notice that CoD HQ Base + Warzone (65 GB) stays automatically checked whenever any MW4 mode is active, matching how the in-game File Management menu works. You can also click the quick preset pills (Select All, MP + Warzone Only, or Campaign Early Access Only).
3. Toggle the Optional 4K Texture Cache: If you play at 1440p or 4K with On-Demand Texture Streaming set to “Large” or “Allocated Cache,” check the +24 GB reserve box so your SSD calculation includes shader and texture headroom.
4. Enter Your Internet Speed (Mbps): Type your speed test result into Step 3 or drag the slider (or click a preset from 25 Mbps up to 1 Gbps Fiber). The tool converts your Mbps into real-world MB/s throughput right above the input field.
5. Pick Your Target Console or PC SSD: In Step 4, select your console model or PC NVMe drive size from the dropdown menu.
6. Read Your Instant Output & Copy Your Partition Size: Review the three hero cards for your Total Pre-Load Size, Estimated Download Time (with a live verdict on whether you will finish before unlock), and Selected Drive Impact %. If you are partitioning a PC drive in Windows 11, click the Copy MB button to copy the exact cylinder-aligned megabyte value to your clipboard.

How the Calculator Works: Platform Compression, Unpack Math & Download Formulas

Curious how our tool computes your exact storage footprint and download timer? Here is the exact engineering math running behind the scenes:

1. Platform Compression Multipliers (PS5 Kraken vs. Xbox Smart Delivery vs. PC)

PlayStation 5 uses Sony’s dedicated hardware Oodle Kraken decompression block inside its custom I/O complex, allowing developers to pack textures and audio into smaller archive containers (1.00x baseline). On Xbox Series X|S, Smart Delivery packages carry slightly higher metadata overhead (1.03x multiplier). On PC, Steam uses LZMA/Zstd depot chunks that require a 18% temporary staging folder inside steamapps/downloading during pre-load decryption, whereas Battle.net uses the CASC (Content Addressable Storage Container) file system with a 1.02x container index footprint and 16% patching buffer.

Installed Size (GB) = (Sum of Checked Packs × Platform Multiplier) + Texture Cache
Total Required SSD Space (GB) = Installed Size + MAX(Min Platform Buffer, Installed Size × Unpack Ratio)

2. Real-World Download Time Formula (88% CDN Efficiency)

Because 1 Byte = 8 Bits and 1 Binary Gigabyte (GiB) = 1,024 Megabytes (MiB), dividing your gigabytes directly by Mbps ÷ 8 always underestimates download times by 10% to 15%. Our calculator applies a verified 0.88 network efficiency factor to account for TCP/IP framing and PSN/Xbox/Steam CDN congestion during launch week:

Real Throughput (MB/s) = (Internet Speed in Mbps ÷ 8) × 0.88
Download Time (Seconds) = (Total Pre-Load GB × 1,024) ÷ Real Throughput (MB/s)

3. Windows 11 Exact SSD Partition Formula (Fixing the 99.9 GB Bug)

If you are creating a dedicated NVMe SSD partition on Windows 11 specifically for Call of Duty HQ so shader re-compilations and huge seasonal updates never choke your C: OS boot drive, typing a round number like 250 × 1024 = 256000 MB into Disk Management (diskmgmt.msc) results in Windows displaying 249.9 GB due to NTFS Master File Table ($MFT) and boot sector reservations. Our calculator rounds your required MW4 space + Season 1 update headroom to the nearest clean 10 GB increment and adds the exact NTFS metadata buffer:

Exact Windows Disk Management Size (MB) = (Recommended Partition GB × 1,024) + 4 MB

MW4 File Size & Console SSD Fit Cheat Sheet (PS5, Xbox Series X|S & PC)

Use the reference table below to compare how different combinations of Call of Duty: Modern Warfare 4 packs fit across Base PS5, Xbox Series S, Xbox Series X, and PC NVMe drives:

Installation Preset	Download Size (PS5 / Steam)	Peak Space Needed (With Unpack)	Base PS5 (667 GB) % Used	Xbox Series S (364 GB) % Used
Campaign Early Access Only (HQ + Campaign)	107 GB	127 GB – 135 GB	19.0% (Fits Easily)	36.3% (Fits Easily)
Multiplayer + Warzone Only (Competitive Setup)	120 GB	140 GB – 148 GB	21.0% (Fits Easily)	39.8% (Fits Comfortably)
Multiplayer + DMZ + Warzone (No Campaign)	158 GB	180 GB – 190 GB	27.0% (Fits Comfortably)	51.4% (Over Half Drive)
Full MW4 Install (All 4 Packs Checked)	200 GB	224 GB – 236 GB	33.6% (1/3 of Base PS5)	63.7% (Tight Fit!)
Full MW4 + 4K High-Res Texture Cache	224 GB	251 GB – 264 GB	37.6% (Leaves 416 GB)	71.4% (Upgrade Recommended)

MW4 Pre-Load Download Time Reference Table by Internet Speed

Wondering if you can start your download after work and still play Campaign Early Access tonight or jump into Multiplayer at midnight on October 23? Here are the real-world download times for the three most common MW4 installations:

Internet Speed (Mbps)	Real Speed (MB/s)	Campaign Only (107 GB)	MP + Warzone (120 GB)	Full MW4 Install (200 GB)
25 Mbps (Basic Broadband)	2.75 MB/s	11h 04m	12h 25m	20h 41m
50 Mbps (Standard Cable/VDSL)	5.50 MB/s	5h 32m	6h 12m	10h 21m
100 Mbps (Fast Cable / Entry Fiber)	11.00 MB/s	2h 46m	3h 06m	5h 11m
250 Mbps (Mid-Tier Fiber)	27.50 MB/s	1h 07m	1h 15m	2h 05m
500 Mbps (High-Speed Fiber)	55.00 MB/s	34 min	38 min	1h 03m
1,000 Mbps (1 Gbps Gigabit Fiber)	110.00 MB/s	17 min	19 min	32 min

Pro Tips to Shrink Your MW4 File Size & Speed Up Your Pre-Load

• Delete the 42 GB Campaign Pack on October 22: Once you finish the MW4 Early Access Campaign between October 16 and October 22, open Call of Duty HQ, press Options / Menu → Manage Files, and uninstall the MW4 Campaign Pack. You keep 100% of your unlocked Campaign operators, XP tokens, and weapon blueprints while freeing up 42 GB right before Multiplayer and DMZ unlock on October 23.
• Switch On-Demand Texture Streaming to “Minimal” on 512GB Drives: If you play on an Xbox Series S (364 GB usable) or a 512 GB PC laptop SSD, navigate to Settings → Graphics → Quality → On-Demand Texture Streaming and change the allocated cache size from Large to Minimal. This prevents CoD HQ from silently claiming an extra 24 GB to 32 GB of reserved SSD space over your first week of matches.
• Use a Wired Cat6 Ethernet Cable or 5 GHz / 6 GHz Wi-Fi Channel: On PlayStation 5 and Xbox Series X|S, background downloads drop by up to 40% while another online game is running. Put your console into Rest Mode (PS5) or Sleep Mode (Xbox) with all background apps closed to hit your full line speed.

Why Use an MW4 Pre-Load Size Calculator?

Call of Duty installs are large, and unpacking needs extra free space on top of the final size. An MW4 pre-load size calculator shows how much space you need during the download and after it. With the MW4 pre-load size calculator, you can choose only the packs you want, such as multiplayer and Warzone, and avoid running out of space halfway through a pre-load.

Tips for Using the MW4 Pre-Load Size Calculator

• Select only the packs you need. Skipping unused modes saves space and time.
• Allow unpacking space. Keep free room beyond the final install size.
• Enter your real speed. Use the speed you measure, not the plan speed.
• Check the partition value. Use the exact MB for a clean drive size in Windows.
• Start early. Pre-load before launch day to avoid queues.

Related Tools and Guides

Need a dedicated game drive? Our Windows partition size calculator explains the exact MB value that avoids the 99.9 GB bug. Read the Modern Warfare 4 early access release date guide, and set up your aim with the MW4 sensitivity converter.

For official news and release details, visit Call of Duty.

How Accurate Is the MW4 Pre-Load Size Calculator?

The MW4 Pre-Load Size Calculator uses the pack sizes and unpacking estimates from the latest information we could confirm. Where numbers are estimates, the MW4 Pre-Load Size Calculator says so, and we update the page when official details change. Treat the MW4 Pre-Load Size Calculator as a planning aid, and double-check anything important in the game itself.

Bookmark this MW4 Pre-Load Size Calculator page and come back after each patch or announcement. Running the MW4 Pre-Load Size Calculator again takes seconds, and it keeps your plan current.

Frequently Asked Questions (FAQs)

1. How big is the full Call of Duty: Modern Warfare 4 install size on PS5, Xbox, and PC?

A complete installation of Call of Duty: Modern Warfare 4 (including CoD HQ Base + Warzone at 65 GB, Campaign at 42 GB, Multiplayer at 55 GB, and DMZ Mode at 38 GB) is 200 GB on PS5 and Steam, 204 GB on Battle.net, and 206 GB on Xbox Series X|S. However, you need between 224 GB and 236 GB of free SSD space during the pre-load unpacking phase.

2. Can I install MW4 Multiplayer without installing Campaign or DMZ?

Yes! Call of Duty HQ uses modular file packs. If you only want to play core 6v6 Multiplayer and Warzone on October 23, you only need CoD HQ Base + Warzone (65 GB) and MW4 Multiplayer (55 GB), bringing your total download size down to just 120 GB (saving 80 GB of SSD space).

3. Does Modern Warfare 4 fit on a base 512 GB Xbox Series S or launch 825 GB PS5?

Yes, MW4 fits on both consoles, but storage is tight on the Xbox Series S. On a launch 825 GB PS5 (667 GB usable), the full 200 GB MW4 bundle + unpack buffer takes up 33.6% of your drive, leaving 443 GB free. On a 512 GB Xbox Series S (364 GB usable), the full installation consumes 63.7% of your entire console storage, leaving just 132 GB for other games.

4. Why does Steam or Battle.net ask for 230+ GB of free space when the download is only 200 GB?

PC launchers download encrypted, compressed archive chunks into a temporary staging folder before decrypting and writing the final game files. During the final 5% of the pre-load unlock on October 23, both the compressed depot chunks and unpacked game files exist simultaneously on your NVMe SSD, requiring an extra 24 GB to 36 GB of temporary scratch space.

5. How many MB should I enter in Windows 11 Disk Management for a dedicated 250 GB MW4 SSD partition?

Enter 256004 MB in Windows 11 or Windows 10 Disk Management (diskmgmt.msc) to create an exact 250.0 GB NTFS partition for Call of Duty HQ. Entering 256004 MB prevents the Windows 249.9 GB rounding bug and gives you enough space for the full 200 GB MW4 install, temporary unpacking overhead, and Season 1 BlackCell patch files.

6. What M.2 NVMe SSD speed is required for Call of Duty: Modern Warfare 4 on PS5 and PC?

For PlayStation 5 and PS5 Pro, Sony requires a PCIe Gen4 x4 M.2 NVMe SSD with a minimum sequential read speed of 5,500 MB/s and an attached heatsink (such as the WD_BLACK SN850X 2TB at 7,300 MB/s or Corsair MP600 PRO LPX 2TB at 7,100 MB/s). On PC, an NVMe SSD supporting Microsoft DirectStorage cuts initial shader compilation and map loading times by up to 45% compared to SATA SSDs.

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