How to Use This Tool
Enter a Value
Type the storage size you want to convert into the input field. Decimals and scientific notation are supported.
Choose Your Units
Pick a From unit and a To unit from the dropdowns. Use the swap button to flip them instantly.
Read the Result
The converted value appears instantly below the inputs. Click Copy to put it on your clipboard.
See All Conversions
Scroll down to see the same value converted into every other supported unit at once, covering both decimal and binary scales.
Frequently Asked Questions
Is this tool really free?
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Yes, completely free with no limits and no sign-up. Everything runs in your browser with no server costs.
Is my data sent to a server?
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No. All conversion math happens directly in your browser. Nothing you type is ever sent anywhere.
What units are supported?
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12 units: Bit, Byte, Kilobyte (KB), Kibibyte (KiB), Megabyte (MB), Mebibyte (MiB), Gigabyte (GB), Gibibyte (GiB), Terabyte (TB), Tebibyte (TiB), Petabyte (PB), and Pebibyte (PiB).
What is the difference between KB and KiB?
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KB (Kilobyte) uses the decimal system where 1 KB = 1,000 bytes. KiB (Kibibyte) uses the binary system where 1 KiB = 1,024 bytes. The same pattern applies to MB vs MiB, GB vs GiB, and so on.
Which should I use, decimal or binary?
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Storage manufacturers and internet speeds typically use decimal (KB, MB, GB). Operating systems often report sizes in binary (KiB, MiB, GiB) but label them as KB, MB, GB. This is why a 500 GB drive shows less space than expected in your computer.
How many bytes are in a gigabyte?
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In decimal, 1 GB = 1,000,000,000 bytes (one billion). In binary, 1 GiB = 1,073,741,824 bytes. The tool handles both correctly.
How accurate are the conversions?
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The tool uses exact conversion factors and displays up to 10 significant figures. Results are accurate for everyday and professional use.
Can I see all conversions at once?
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Yes. Below the main result, the tool shows the same value converted into every other unit in a scrollable list.
Can I swap the From and To units?
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Yes. Click the swap button between the two dropdowns to flip them instantly.
Does it support decimals?
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Yes. You can type values like 1.5, 0.25, or 2.5e3. The tool handles all standard number formats.
What Is Data Storage Converter?
Data Storage Converter is a free tool that converts between 12 data storage units right in your browser. It covers both the decimal system (KB, MB, GB, TB, PB) used by storage manufacturers and internet providers, and the binary system (KiB, MiB, GiB, TiB, PiB) used by operating systems and memory. Nothing you type is ever sent anywhere - all math runs locally on your device.
The result updates live as you type, and a full conversion table shows the same value in every other unit at once. Use the swap button to flip your units instantly, or copy the result to your clipboard in one click.
Features Explained
12 Storage Units
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Convert between Bit, Byte, KB, KiB, MB, MiB, GB, GiB, TB, TiB, PB, and PiB, covering every common storage size from the tiniest to the largest.
Decimal Units (SI)
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KB, MB, GB, TB, and PB use powers of 1,000. These are the units used by drive manufacturers, internet providers, and most marketing materials.
Binary Units (IEC)
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KiB, MiB, GiB, TiB, and PiB use powers of 1,024. These are the units your operating system actually uses when reporting file and disk sizes.
Bits and Bytes
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Start from the smallest: 1 byte = 8 bits. Bits are used for network speeds (Mbps), while bytes are used for file and storage sizes.
Petabyte Scale
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The tool goes up to Petabyte (PB) and Pebibyte (PiB) for data center, cloud storage, and enterprise-scale conversions.
Instant Conversion
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The result updates live as you type. There is no Convert button to click - you see the answer the moment your input changes.
All Conversions at Once
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Below the main result, a scrollable table shows the same value converted into every other unit simultaneously, so you can compare decimal and binary side by side.
Swap Button
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Click the swap button between the From and To dropdowns to flip them instantly. The result recalculates right away.
Copy to Clipboard
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Click Copy to put the converted value on your clipboard instantly, ready to paste into a document, spreadsheet, or ticket.
100% Browser-Based
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All conversion math runs directly in your browser. Nothing you type is ever sent to any server - complete privacy.
Who Is This Tool For?
Software Developers
Convert between bytes, kilobytes, and megabytes when sizing files, buffers, payloads, and upload limits.
System Administrators
Convert disk capacity, memory allocation, and backup sizes between GB, GiB, TB, and TiB for server planning.
Students
Convert between storage units for computer science homework and understand the difference between decimal and binary.
Teachers
Demonstrate the decimal vs binary difference in real time and help students understand why a 1 TB drive shows less space.
IT Support
Convert file sizes and storage capacities when helping users understand disk space, email attachment limits, and download sizes.
Cloud Engineers
Convert between GB, GiB, TB, and TiB when provisioning cloud storage, virtual machines, and container limits.
Data Scientists
Convert dataset sizes between MB, GB, and TB when estimating storage needs and transfer times.
Network Engineers
Convert between bits, bytes, and megabytes when calculating bandwidth, throughput, and data transfer rates.
Video Editors
Convert raw footage and project sizes between GB and TB when planning storage needs and backup strategies.
Photographers
Convert memory card and photo library sizes between MB, GB, and TB when choosing cards and planning backups.
Gamers
Convert game download and install sizes between GB and GiB to understand how much disk space a game actually needs.
Content Creators
Convert video, audio, and image file sizes when estimating storage needs and upload times for platforms.
Database Administrators
Convert table sizes, index sizes, and backup volumes between MB, GB, and TB for capacity planning.
Hardware Buyers
Understand the difference between advertised storage (decimal GB) and actual usable space (binary GiB) before buying drives.
Mobile App Developers
Convert app bundle sizes and asset storage between MB and bytes when optimizing for app store limits.
Email Administrators
Convert mailbox sizes and attachment limits between MB and GB for quota planning.
Backup Engineers
Convert backup sizes between GB, TB, and PB for disaster recovery planning and tape/cloud storage estimates.
Web Developers
Convert image, font, and asset sizes between KB, MB, and bytes when optimizing page load performance.
Podcast Producers
Convert audio file sizes between MB and GB when estimating hosting costs and episode storage.
Archivists
Convert collection sizes between GB, TB, and PB when planning long-term digital preservation and migration.
Parents
Understand how much storage your family's photos, videos, and apps actually use by converting between GB and TB.
Shoppers
Compare storage offers by converting between the advertised decimal units and the actual binary units your device will report.
Journalists
Convert data sizes in technology stories so readers understand the scale of data breaches, storage milestones, and cloud costs.
Anyone
Quickly convert any data size for any reason - tech support, shopping, homework, curiosity, or work.
Tips for Best Results
Decimal vs binary matters
1 GB = 1,000,000,000 bytes (decimal). 1 GiB = 1,073,741,824 bytes (binary). This 7% difference is why a 500 GB drive shows about 465 GiB in your operating system.
Bits vs bytes
1 byte = 8 bits. Internet speeds are usually measured in bits (Mbps), while file sizes are measured in bytes (MB). Divide Mbps by 8 to get MB per second.
Use the All Conversions table
Scroll below the main result to see the same value in every other unit at once. This is especially useful for comparing decimal and binary side by side.
Drive manufacturers use decimal
Hard drives, SSDs, and USB sticks are advertised in decimal (GB, TB). Your computer reports in binary (GiB, TiB). Use this tool to see exactly what the difference is.
Memory uses binary
RAM is always measured in binary powers: 4 GiB, 8 GiB, 16 GiB. If you see 4 GB of RAM, it actually means 4 GiB (4,294,967,296 bytes).
Use the swap button
Click the swap button between the dropdowns to flip From and To instantly instead of changing both dropdowns manually.
Copy the result in one click
Click Copy next to the result to put the value on your clipboard, ready to paste into a document or ticket.
Petabytes for large scale
1 PB = 1,000 TB. Use Petabyte and Pebibyte for data center, cloud, and enterprise-scale storage planning.
Scientific notation for large numbers
For very large byte counts, type scientific notation like 5e9 (5 billion bytes = 5 GB) instead of counting zeros.
Privacy is built in
Nothing you type is ever sent to any server. All math runs in your browser, so your data stays completely private.
Privacy & Security
This tool runs 100% in your browser. Your files stay entirely on your own device. Nothing is uploaded, nothing is shared, and no server, advertiser, or third party has access to your files.
If a tool saves your work on your own device, you can remove it at any time using the Clear All button. Some tools rely on an external service to return their result; in those cases, only the minimum data required for the request is sent, and never your files or content. Any ads shown on this page run in an isolated frame and cannot read, touch, or transmit anything you upload, paste, type, or download here. Advertisers may see standard visit information like your IP address and which page you're on, as described in our Privacy Policy, but your data itself stays fully under your control.
