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Numeric Data Types Table

FlexRIO Help

Edition Date: November 2015

Part Number: 372614J-01

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The following table displays the numeric data types available in LabVIEW. LabVIEW stores each data type in a different way.

Terminal Numeric Data Type Bits of Storage on Disk Approximate Number of Decimal Digits Approximate Range
Single-precision, floating-point 32 6 Minimum positive number: 1.40e–45

Maximum positive number: 3.40e+38

Minimum negative number: –1.40e–45

Maximum negative number: –3.40e+38
Double-precision, floating-point 64 15 Minimum positive number: 4.94e–324

Maximum positive number: 1.79e+308

Minimum negative number: –4.94e–324

Maximum negative number: –1.79e+308
Extended-precision, floating-point 128 varies from 15 to 20 by platform Minimum positive number: 6.48e–4966

Maximum positive number: 1.19e+4932

Minimum negative number: –6.48e–4966

Maximum negative number: –1.19e+4932
Complex single-precision, floating-point 64 6 Same as single-precision, floating-point for each (real and imaginary) part
Complex double-precision, floating-point 128 15 Same as double-precision, floating-point for each (real and imaginary) part
Complex extended-precision, floating-point 256 varies from 15 to 20 by platform Same as extended-precision, floating-point for each (real and imaginary) part

Fixed-point 64, or 72 if you include an overflow status varies by user configuration varies by user configuration
Byte signed integer 8 2 –128 to 127
Word signed integer 16 4 –32,768 to 32,767
Long signed integer 32 9 –2,147,483,648 to 2,147,483,647

Quad signed integer 64 18 –1e19 to 1e19
Byte unsigned integer 8 2 0 to 255
Word unsigned integer 16 4 0 to 65,535
Long unsigned integer 32 9 0 to 4,294,967,295

Quad unsigned integer 64 19 0 to 2e19
128-bit time stamp 128 19 Minimum time: 01/01/1600 00:00:00

UTC maximum time: 01/01/3001 00:00:00 UTC

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