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PakCalc

Data Storage Converter — KB, MB, GB, TB

Convert file sizes, storage and data allowances. Both decimal units (1 GB = 1,000 MB, used by manufacturers and mobile packages) and binary units (1 GiB = 1,024 MiB, used by Windows) are included.

Updated

Result

1,000

1 Gigabyte = 1,000 Megabyte

Bit (b)
8,000,000,000
Byte (B)
1,000,000,000
Kilobyte (KB, 1,000 B)
1,000,000
Terabyte (TB)
0.001
Kibibyte (KiB, 1,024 B)
976,562.5
Mebibyte (MiB)
953.674316
Gibibyte (GiB)
0.931323
Tebibyte (TiB)
0.000909

Formula

1 KB = 1,000 bytes · 1 MB = 1,000 KB · 1 GB = 1,000 MB

1 KiB = 1,024 bytes · 1 MiB = 1,024 KiB · 1 GiB = 1,024 MiB

1 byte = 8 bits

Internet speeds are quoted in bits (Mbps); file sizes in bytes (MB). Divide Mbps by 8 for MB per second.

Examples

  • 1 GB to MB

    1 Gigabyte = 1,000 Megabyte

  • 1 TB drive in GiB

    1 Terabyte = 931.322575 Gibibyte

  • 50 Mbps in MB/s (as bits → bytes)

    50,000,000 Bit = 6.25 Megabyte

Reference table

Each unit in MB
UnitIn MB
Bit (b)0.00000013
Byte (B)0.000001
Kilobyte (KB, 1,000 B)0.001
Megabyte (MB)1
Gigabyte (GB)1,000
Terabyte (TB)1,000,000
Kibibyte (KiB, 1,024 B)0.001024
Mebibyte (MiB)1.048576
Gibibyte (GiB)1,073.741824
Tebibyte (TiB)1,099,511.627776

Important information

  • A '1 TB' hard drive holds 10¹² bytes, which Windows displays as about 931 GB because it actually counts in GiB.

Frequently asked questions

Is 1 GB 1,000 MB or 1,024 MB?

Officially 1,000 MB. 1,024 is the binary gibibyte (GiB), which some software still labels 'GB'.

How long to download 1 GB at 10 Mbps?

1 GB = 8,000 megabits, so about 800 seconds — around 13 minutes.

What is the difference between Mb and MB?

Mb is megabits; MB is megabytes. 1 MB = 8 Mb.

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