📏 DataSizeUnits

Convert and format data size units in .NET (bits, bytes, kilobits, kilobytes, and others).

Features

• Convert between many units of digital information, including bits, bytes, and their higher-order units (kilobits and kilobytes and the rest, up to and including exabits and exabytes)

  • 150 Mbit → 17.8 MByte

    DataSize sizeInMegabytes = new DataSize(150, Unit.Megabit).ConvertToUnit(Unit.Megabyte);
    // sizeInMegabytes.Quantity == 17.8
    // sizeInMegabytes.Unit == Unit.Megabyte

• Normalize a number of bytes to an automatically-selected unit based on its magnitude

  • 2,097,152 bytes → 2 MB

    DataSize normalized = new DataSize(2_097_152).Normalize();
    // normalized.Quantity == 2.0
    // normalized.Unit == Unit.Megabyte

  • 2,097,152 bytes → 16.78 mbit

    DataSize normalized = new DataSize(2_097_152).Normalize(true); // pass true to get bits units instead of bytes
    // normalized.Quantity == 16.78
    // normalized.Unit == Unit.Megabit

  • The unit will be automatically selected so the value is greater than or equal to 1 of that unit, and less than 1 of the next largest unit. For example, 2,097,152 bytes is greater than or equal to 1 MB and less than 1 GB, so it is normalized to MB.

• Parse and format unit names and abbreviations

  • Megabyte, MByte, mebibyte, MiB, MB, and M are all megabytes

    Unit unit = DataSize.ParseUnit("MB");
    // unit == Unit.Megabyte

  • Abbreviations for each unit are of the short, case-sensitive forms.

    string abbreviation = Unit.Terabyte.ToAbbreviation();
    // abbreviation == "TB"

    string iecAbbreviation = Unit.Terabyte.ToAbbreviation(true); // pass true for the IEC abbreviations (kibibyte, etc.)
    // iecAbbreviation == "TiB";

  • Get the unit names in JEDEC (TB) or IEC (TiB) variants.

    string name = Unit.Terabyte.ToName();
    // name == "terabyte";

    string iecName = Unit.Terabyte.ToName(true); // pass true for the IEC names (kibibyte, etc.)
    // iecName == "tebibyte";

• Format bytes as a string with different unit and precision options

  • 1,536 bytes to kilobytes, 1 digit after the decimal point → 1.5 KB

    string formatted = new DataSize(1536).ToString(1, Unit.Kilobyte); // precision 1, change to specified unit
    // formatted == "1.5 KB"

    string formatted = new DataSize(1536).ConvertToUnit(Unit.Kilobyte).ToString(1); // precision 1, don't change units
    // formatted == "1.5 KB"

    string formatted = new DataSize(1536).ToString("KB1"); // precision 1, change to specified unit
    // formatted == "1.5 KB"

    string formatted = new DataSize(1536).ToString(1, true); // precision 1, normalize to automatic unit
    // formatted == "1.5 KB"

    string formatted = string.Format(new DataSizeFormatter(), "Size: {0:KB1}", 1536); // precision 1, change to specified unit
    // formatted == "Size: 1.5 KB"

    string formatted = string.Format(DataSizeFormatter.Instance, "Size: {0:A1}", 1536); // precision 1, normalize to automatic unit
    // formatted == "Size: 1.5 KB"

  • The format specifier (like KB1 above) is made up of two optional parts, the destination unit (KB) and the precision (1).
  • The destination unit (KB) is the data size unit to which you want the input bytes to be converted. You can also specify A to automatically normalize the unit of bytes and higher magnitudes, which is the default behavior if you omit the destination unit, and a normalizes to bits. Case matters for ambiguous units, like kB/KB/K for kilobytes and kb/k/Kb for kilobits. Unambiguous units like kilobyte/kbyte/kibibyte/kib can be provided in any case.
  • The precision (1) is the number of digits after the decimal place. If you omit this, it will use the default number value for the culture of the current thread, for example 2. Set this to 0 if you want integers only.

Install

This package is available in NuGet Gallery.

This is a .NET Standard 2.0 library, and can be depended upon in projects with .NET Framework 4.6.1, .NET Core 2.0, or later.

Tool	Installation
Visual Studio NuGet Package Manager	Search for DataSizeUnits
Visual Studio Package Manager Console	Install-Package DataSizeUnits
.NET Core SDK CLI	dotnet add package DataSizeUnits