Understanding the Precision of Numeric Values


Here are three interesting facts about numeric precision in Excel:

Excel can calculate positive values as large as 9.99E+307 and approximately as small as 1.00E-307. If a formula results in a value outside this range, Excel stores the number as text and assigns a #NUM! error value to the formula cell.

Examples of Numeric Precision:

Heading Another Heading Stored Value
123456789012345678 1.23457E+17 123456789012345000
1.23456789012345678 1.234568 1.23456789012345
1234567890.12345678 123456890 1234567890.12345
123456789012345.678 1.23457E+14 123456789012345