Confused by data sizes? Whether you are calculating how many photos fit on your iPhone, checking your internet speed (Mbps), or managing server storage, understanding digital units is essential.
Our Data Unit Converter makes it simple. Convert instantly between Bits, Bytes, Megabytes (MB), Gigabytes (GB), and Terabytes (TB) using the standard binary system.
Speed vs. Size.
Internet speed is usually measured in Bits (Mbps – Megabits per second).
File sizes are measured in Bytes (MB – Megabytes).
The rule of thumb: 1 Byte = 8 Bits. So, if you have a 100 Mbps connection, your max download speed is actually 12.5 MB/s.
Marketing vs. Reality.
Manufacturers sell drives using the decimal system (1 GB = 1000 MB).
Computers read data in binary (1 GB = 1024 MB).
This discrepancy means a “1 TB” drive only shows about 931 GB of usable space in Windows.
1024 MB.
In the standard binary system used by computers, there are 1,024 Megabytes in one Gigabyte.
This same multiplier applies as you go up the scale:
1024 GB = 1 TB, and 1024 TB = 1 PB (Petabyte).
Massive storage.
A Petabyte (PB) is 1,024 Terabytes.
To put it in perspective, 1 PB could hold over 13 years of HD-TV video or 500 billion pages of standard text.
It’s a unit mostly used by cloud servers and big data centers.
1. Bidirectional Conversion:
Flexible input. You don’t have to switch tabs. Type in the “Gigabytes” box to see “Megabytes”, or type in “Megabytes” to see “Gigabytes”. The tool updates both fields in real-time as you type.
2. High Precision:
Small numbers matter. When converting huge units like Petabytes down to Bytes, precision is key. Our tool supports up to 9 decimal places, ensuring you get accurate data for precise technical calculations.
3. Binary Standard (1024):
We use the “Real” computer standard. While some online converters simplify to 1000, we stick to 1024 (IEC Standard) because that is what your operating system actually uses to measure files and RAM.
💡 Pro Tip: Buying a new phone? If you take a lot of 4K Videos, remember that 1 minute of 4K footage is roughly 375 MB. A 128 GB phone fills up faster than you think! Use this tool to estimate your storage needs.