# Skabelon:Round

Skabelondokumentation[vis] [redigér] [historik] [opfrisk]

This templates rounds parameter 1 to the number of digits after the point optionally given as parameter 2. If parameter 2 is negative, rounding is to a multiple of 10. If parameter 2 is undefined, numbers with 4 digits before the point are rounded to integers, numbers with 3 digits before the point are rounded to 1 digit after the point, numbers with 2 digits before the point are rounded to 2 digits after the point, and numbers with 1 digit before the point or none are rounded to 3 digits after the point.

In other words, if parameter 2 is undefined, rounding is to 4 significant digits, except that it is not cruder than rounding to an integer and not finer than rounding to three digits after the decimal point.

Examples:

• `"{{round|123.456|4}}"` gives "123.456" [1]
• `"{{round|123.456|3}}"` gives "123.456" [2]
• `"{{round|123.456|2}}"` gives "123.46" [3]
• `"{{round|123.456|1}}"` gives "123.5" [4]
• `"{{round|123.456|0}}"` gives "123" [5]
• `"{{round|123.456|-1}}"` gives "120" [6]
• `"{{round|123.456|-2}}"` gives "100" [7]
• `"{{round|123.456|-3}}"` gives "0" [8]
• `"{{round|123456.789}}"` → "123457" [9]
• `"{{round|12345.6789}}"` → "12346" [10]
• `"{{round|1234.56789}}"` → "1235" [11]
• `"{{round|123.456789}}"` → "123.5" [12]
• `"{{round|12.3456789}}"` → "12.35" [13]
• `"{{round|1.23456789}}"` → "1.235" [14]
• `"{{round|.123456789}}"` → "0.123" [15]
• `"{{round|.0123456789}}"` → "0.012" [16]
• `"{{round|.00123456789}}"` → "0.001" [17]

Note that trailing zeros are not shown, so rounding can seem cruder than has actually been applied:

• `"{{round|123.04}}"` → "123" [18]
• `"{{round|12.304}}"` → "12.3" [19]
• `"{{round|1.2304}}"` → "1.23" [20]

While this is a limitation of the template (normally there would be trailing zeros to show the precision), there is also the general problem that if a number is an integer with trailing zeros, then the precision is not clear:

• `"{{round|1230.4}}"` → "1230" [21]