Data Storage Converter

Convert between data storage units instantly — pick any from and to unit.

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About the Data Storage Converter

The Data Storage Converter turns any digital storage figure into every other unit at once, from a single byte up to bits, kilobytes, megabytes, gigabytes, terabytes and beyond. Type a number, pick its unit, and instantly see the equivalent everywhere else. It exists because storage is quoted inconsistently across the tech world: a drive box says one thing, your operating system reports another, and an internet plan uses a third scale entirely. Instead of doing the math by hand, you get an accurate side-by-side conversion you can copy into a spreadsheet, a quote, a backup plan, or a homework answer.

The single most important reason to use this converter is the binary-versus-decimal split. Drive and flash-memory makers measure capacity in decimal units where 1 GB equals 1,000,000,000 bytes, while Windows and many programs report in binary units where 1 GiB equals 1,073,741,824 bytes. That gap is why an advertised 500 GB drive shows as roughly 465 GB in Windows, and the discrepancy grows with size: about 2.4% at the kilobyte level, 7.4% at gigabytes, and 10% at terabytes. The converter handles both 1000-based and 1024-based math so you can reconcile a label against what your computer actually shows.

Internally the tool works by reducing your input to a single base value, the byte (or bit), then multiplying or dividing by the correct power. In decimal mode each step up is times 1,000; in binary mode each step is times 1,024. Bits add one more rule: 1 byte equals 8 bits, which matters because internet speeds are quoted in bits per second (Mbps) while files are stored in bytes (MB). Divide a Mbps figure by 8 to estimate real download throughput, so a 100 Mbps line delivers about 12.5 MB/s, meaning a 1 GB file takes roughly 80 seconds under ideal conditions.

Everything runs entirely in your browser using plain arithmetic, so nothing you enter is uploaded, logged, or stored on a server. Results are exact for the unit definitions you choose; the only practical limit is the rounding shown for very large or very small fractions, which you can expand for full precision. Because storage marketing and operating systems genuinely disagree on the rules, the converter does not invent a single right answer. It lets you pick the convention that matches your context, so the numbers you copy are correct for the situation you are actually in.

Frequently asked questions

Why does my hard drive show less space than the box advertised?

Manufacturers measure in decimal units (1 GB = 1,000,000,000 bytes), but Windows reports in binary units (1 GiB = 1,073,741,824 bytes). That makes an advertised 500 GB drive appear as about 465 GB, and the gap reaches around 10% at the terabyte scale. No space is actually missing; the two systems just count differently.

What is the difference between a megabyte (MB) and a mebibyte (MiB)?

A megabyte is the decimal unit: 1 MB = 1,000,000 bytes. A mebibyte is the binary unit defined by the IEC in 1998: 1 MiB = 1,048,576 bytes (1024 x 1024). They differ by about 4.9%. The same pattern applies to KB/KiB, GB/GiB and TB/TiB.

How do I convert megabits (Mb) to megabytes (MB)?

Divide by 8, because one byte equals eight bits. So 100 megabits is 12.5 megabytes. This is why a 100 Mbps internet connection downloads at roughly 12.5 MB/s rather than 100 MB/s.

Should I use the binary or decimal setting?

Use decimal (1000-based) to match storage and flash-memory marketing, internet plans, and most networking figures. Use binary (1024-based) to match what Windows, RAM, and many file managers report. Pick whichever matches the number you are comparing against.

Is my data sent anywhere when I use this converter?

No. All calculations happen locally in your browser using simple arithmetic. Nothing you type is uploaded or saved, so you can convert figures freely without any privacy concerns.

From our blog

Reading Hex Like a Decimal: A Practical Guide to Hex-to-Decimal Conversion

By the Super Simple Digital Tools Team · Updated June 2026

Hexadecimal exists because computers think in binary, and binary is exhausting for humans to read. A single hex digit represents exactly four binary bits, so two hex digits cover a full byte and a long string of ones and zeros collapses into something compact like 0x1F4. That compactness is why hex shows up in memory dumps, color codes, hash values and hardware registers. The catch is that we count in tens, not sixteens, so a hex value rarely tells you its actual magnitude until you convert it to decimal.

The system uses sixteen symbols. The familiar digits 0 to 9 keep their usual values, and then the letters A, B, C, D, E and F take over for 10, 11, 12, 13, 14 and 15. That is the single fact that trips people up: F is not a letter here, it is the number fifteen. Once you internalize that A through F are just digits worth ten through fifteen, the rest of the conversion is ordinary arithmetic you already know from decimal place value.

To convert, give each digit a weight based on its position. The rightmost digit is multiplied by 16 to the power of 0 (which is 1), the next by 16 to the power of 1 (16), the next by 16 squared (256), and so on. Multiply, then add everything up. Take 2F: that is 2x16 + 15 = 47. Take A0: that is 10x16 + 0 = 160. The pattern never changes, only the number of terms grows as the value gets longer.

Knowing a few landmark values makes hex far less intimidating. 0xFF is 255, the maximum for one byte and the reason color channels top out there. 0xFFFF is 65,535, the largest unsigned 16-bit value. 0xFFFFFFFF is 4,294,967,295, the ceiling of an unsigned 32-bit integer. When you spot these in code or documentation you can recognize them as boundaries rather than puzzles, which is often enough to understand what a piece of software is doing.

This converter automates the place-value math so you can stay focused on the problem in front of you, whether that is decoding a color, checking a register, or confirming a calculation. Paste the value, with or without 0x and in any letter case, and read the exact decimal result. Because the work happens in your browser using whole-number arithmetic, the answer is precise for short and long inputs alike, and nothing you enter leaves your device.

Remember the letter values A=10, B=11, C=12, D=13, E=14, F=15; this is all that separates hex from ordinary place-value math.
Use 0xFF (255) as a mental anchor: it is the top of a single byte and the maximum for any one channel in a #RRGGBB color code.
Split a color like FF5733 into FF, 57 and 33 and convert each pair separately to get the red, green and blue values.
Don't worry about the 0x prefix or capitalization when pasting from code; both are handled, so 0x1a and 1A give the same answer.

Read the full guide →

Tool by the Super Simple Digital Tools Team. Reviewed by our editorial team. Free to use, no signup required.