Visual Basic 2005 with .NET 3.0 Programmer's Reference
The following table summarizes the Visual Basic data types.
| Type | Size | Values |
|---|---|---|
| Boolean | 2 bytes | True or False |
| Byte | 1 byte | 0 to 255 (unsigned byte) |
| SByte | 1 byte | -128 to 127 (signed byte) |
| Char | 2 bytes | 0 to 65,535 (unsigned character) |
| Short | 2 bytes | -32,768 to 32,767 |
| UShort | 2 bytes | 0 through 65,535 (unsigned short) |
| Integer | 4 bytes | -2,147,483,648 to 2,147,483,647 |
| UInteger | 4 bytes | 0 through 4,294,967,295 (unsigned integer) |
| Long | 8 bytes | -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
| ULong | 8 bytes | 0 through 18,446,744,073,709,551,615 (unsigned long) |
| Decimal | 16 bytes | 0 to +/-79,228,162,514,264,337,593,543,950,335 with no decimal point 0 to +/-7.9228162514264337593543950335 with 28 places |
| Single | 4 bytes | -3.4028235E+38 to -1.401298E-45 (negative values) 1.401298E-45 to 3.4028235E+38 (positive values) |
| Double | 8 bytes | -1.79769313486231570E+308 to -4.94065645841246544E-324 (negative values) 4.94065645841246544E-324 through 1.79769313486231570E+308 (positive values) |
| String | variable | Depending on the platform, approximately 0 to 2 billion Unicode characters |
| Date | 8 bytes | January 1, 0001 0:0:00 to December 31, 9999 11:59:59 pm |
| Object | 4 bytes | Points to any type of data. |
| Structure | variable | Structure members have their own ranges. |
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