Free Online Data Storage Converter — Bytes, KB, MB, GB, TB & More
Instantly convert between data storage units including bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. Supports both binary (IEC) and decimal (SI) standards for accurate conversions.
Convert Data Storage Units
How to Use This Data Storage Converter
Enter Your Value
Type the numeric value you want to convert into the input field. For example, enter 500 to convert 500 of a given unit.
Select the Source Unit
Choose the unit you are converting from using the dropdown menu. Options range from Bits to Petabytes in both binary and decimal systems.
Select the Target Unit
Choose the unit you want to convert to. Pick any unit from the target dropdown to see the equivalent value.
Click Convert
Press the Convert button to instantly calculate the result. The converted value will appear immediately below with full precision.
Copy or View All Units
Use the Copy Result button to copy the value to your clipboard, or review the complete conversion table showing your value in every supported unit.
Key Features of Data Storage Converter
100% Free with No Signup
Convert unlimited data storage values without creating an account, paying a fee, or encountering any usage restrictions.
Binary and Decimal Unit Support
Switch between SI decimal units (KB, MB, GB) and IEC binary units (KiB, MiB, GiB) to match your exact requirements.
Instant Real-Time Conversion
Get results in under 100 milliseconds with a comprehensive table showing your value across all supported storage units simultaneously.
Complete Privacy Protection
Every calculation runs entirely in your browser. Zero server requests, zero cookies, zero data collection of any kind.
All Standard Units Covered
Supports 16 units from bits and nibbles up to zettabytes, covering every practical data storage measurement in use today.
Mobile-Friendly Responsive Design
Works perfectly on phones, tablets, and desktops with adaptive layout, touch-friendly controls, and optimized readability.
How Data Storage Conversion Works
Result = Input Value × (Source Unit in Bytes ÷ Target Unit in Bytes)Every conversion first normalizes the input value to bytes (the base unit), then divides by the target unit's byte equivalent. The key distinction is between two measurement systems:
Decimal (SI) vs Binary (IEC) Standards
Uses powers of 1000. 1 KB = 1,000 Bytes, 1 MB = 1,000,000 Bytes, 1 GB = 1,000,000,000 Bytes. Used by storage manufacturers and networking standards.
Uses powers of 1024. 1 KiB = 1,024 Bytes, 1 MiB = 1,048,576 Bytes, 1 GiB = 1,073,741,824 Bytes. Used by operating systems and memory addressing.
The smallest unit of data — a single 0 or 1. There are 8 bits in one byte. Internet speeds are typically measured in megabits per second (Mbps).
A group of 4 bits, representing a single hexadecimal digit (0–F). One byte contains exactly 2 nibbles.
The fundamental unit of digital storage — 8 bits. Can represent a single ASCII character or a value from 0 to 255.
For example, converting 5 GB (decimal) to GiB (binary): 5 × 1,000,000,000 ÷ 1,073,741,824 = 4.656613 GiB. This explains why a 5 GB file appears slightly smaller when viewed in an operating system that uses binary units.
Assumptions: This converter uses exact conversion factors per IEC 80000-13 for binary prefixes and the SI standard for decimal prefixes. No rounding is applied during intermediate calculations — only the final display value is rounded to your selected decimal places.
Practical Examples
Jio Fiber Plan Storage Check
Input: 1.5 TB (monthly data limit on Jio Fiber plans)
Result: 1,500 GB = 15,00,000 MB = 1,36,38.11523 GiB
Use Case: Checking how many GB you actually get and understanding why Windows may show a slightly different remaining data figure.
Smartphone Storage Verification
Input: 128 GB (advertised phone storage)
Result: 128 GB = 1,28,000 MB = 119.209290 GiB
Use Case: Understanding why your 128 GB phone shows only about 119 GiB of total storage in settings, before accounting for the operating system.
Internet Speed to File Size
Input: 100 Megabits (100 Mbps broadband speed per second)
Result: 100 Megabits = 12.5 MB = 12,500,000 Bytes
Use Case: A 100 Mbps connection can theoretically download 12.5 megabytes per second, useful for estimating download times for large files.
Cloud Storage Comparison (US Context)
Input: 2 TB (Google One or iCloud storage plan)
Result: 2 TB = 2,000 GB = 2,000,000 MB = 1,862.645149 GiB
Use Case: Comparing cloud storage plans across providers and understanding the real usable capacity in binary terms that your device reports.
What Is a Data Storage Converter?
A data storage converter is a tool that translates values between different digital storage units — from the tiniest bit to massive zettabytes. Whether you are comparing hard drive capacities, calculating bandwidth requirements, or trying to understand why your new SSD shows less space than advertised, this converter gives you precise answers instantly.
This tool is designed for students learning about computer architecture, IT professionals managing server storage, everyday users comparing phone or laptop specifications, and developers working with file sizes and data transfer calculations. It is particularly useful in India where Jio, Airtel, and other ISPs advertise data plans in GB while device settings may display storage in GiB.
The converter handles both the decimal (SI) system used by storage manufacturers and networking standards, and the binary (IEC) system used by operating systems. This dual-standard support helps you bridge the gap between marketed storage capacity and what your operating system actually reports, eliminating the common confusion around "missing" storage space.
Sources & Methodology
This converter uses conversion factors defined by the International Electrotechnical Commission (IEC 80000-13) for binary prefixes and the International System of Units (SI) for decimal prefixes. The binary system uses base-1024 multipliers while the decimal system uses base-1000 multipliers. All intermediate calculations use JavaScript's native floating-point precision (IEEE 754 double-precision), with rounding applied only at the final display stage.
Important Considerations
Actual usable storage on any device is always less than the advertised capacity because the operating system, pre-installed apps, and file system overhead consume a portion. This converter calculates theoretical unit equivalences and does not account for such overhead. For critical storage planning decisions, always verify with the device manufacturer's specifications.
Frequently Asked Questions
Yes, this data storage converter is 100% free to use. There are no hidden charges, no signup required, and no premium tier. You can perform unlimited conversions without any restrictions.
Absolutely. All conversions happen entirely in your browser using client-side JavaScript. No data is sent to any server, no cookies are stored, and no personal information is collected. Your input values never leave your device.
This converter uses exact mathematical conversion factors based on international standards. Binary units use powers of 1024 (IEC standard) and decimal units use powers of 1000 (SI standard). Results are accurate to 10 decimal places for precision.
Binary units (KiB, MiB, GiB, TiB) use multiples of 1024, which is how computers actually address memory. Decimal units (KB, MB, GB, TB) use multiples of 1000, which is how storage manufacturers typically advertise capacity. A 1 TB hard drive in decimal terms is actually about 931 GiB in binary terms.
Hard drive manufacturers use decimal measurement where 1 TB equals 1,000,000,000,000 bytes. However, Windows reports storage using binary measurement where 1 TiB equals 1,099,511,627,776 bytes. So your 1 TB drive shows as approximately 931 GiB in Windows. This converter helps you verify such differences.
Yes. This converter supports both bits and bytes along with all their multiples. One byte equals 8 bits. This is useful when converting internet speed measurements (typically in Mbps or megabits per second) to file download sizes (typically in MB or megabytes).
The converter supports 16 units: Bit, Nibble, Byte, Kilobyte (KB), Kibibyte (KiB), Megabyte (MB), Mebibyte (MiB), Gigabyte (GB), Gibibyte (GiB), Terabyte (TB), Tebibyte (TiB), Petabyte (PB), Pebibyte (PiB), Exabyte (EB), Exbibyte (EiB), and Zettabyte (ZB).
Internet speeds are measured in megabits per second (Mbps). To find download time, first convert your file size to megabits using this tool. Then divide by your speed. For example, a 1 GB file is 8,000 megabits. On a 100 Mbps connection, it would take about 80 seconds to download.
The largest unit supported is the Zettabyte (ZB), which equals 1 sextillion bytes or 10^21 bytes. This is useful for understanding global data statistics. For extremely large numbers, results are displayed in scientific notation to maintain readability.