Template:Convert/4

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 * The converter Template:Convert/4 will convert 4 amounts at once, allowing a mix of different range words between the 4 amounts. However, all 4 amounts are treated as the same unit type. The output unit must be specified, or put "0" to default.
 * Usage:

The template has the same parameters as Template:Convert, and so it allows abbreviation abbr=in or abbr=out or abbr=off, wikilinks lk=in or lk=out, and adjective mode adj=on or adj=mid. The separator can also be a semicolon: disp=semi, disp=semicolon, disp=or, disp=comma, disp=x (customized), disp=b (default as parentheses) and "disp=output only".

Examples
The examples show a mixture of "by" & "x" or "to" or "rarely" (etc.) in some conversions:
 * {&#123;convert/4 |5|by|6|or|7|by|8|m|ft}}    gives:
 * {&#123;convert/4 |5|x|6|x|7|up to|8|m|ft}}gives:
 * {&#123;convert/4 |7|to|8|,|9|or|10|km|mi}}gives:
 * {&#123;convert/4 |7|to|8|not|9|to|10|km|mi|abbr=on}}    gives:
 * {&#123;convert/4 |7|to|8|to|9|to|10|km|mi|adj=on}}    gives:
 * {&#123;convert/4 |5|to|6|rarely|7|to|8|m|ft}} &rarr;
 * {&#123;convert/4 |5|x|6|by|7|-|8|m|ft}}&rarr;
 * {&#123;convert/4 |10|-|20|, summer|25|-|30|°C|F|disp=or}} &rarr;
 * {&#123;convert/4 |11|-|13|-|15|-|17|°C|F|disp=semi}}    gives:
 * {&#123;convert/4 |40|-|50|-|60|-|70|°F|C|lk=on }}gives:
 * {&#123;convert/4 |-5|-|0|-|10|-|15|°F|C|lk=out }}gives:
 * {&#123;convert/4 |45|-|55|rising to|65|-|75|°F|C|lk=out}}    gives:


 * gives:

The range-words are: to, -, and, or, by, +/-, x, but slash ("/"), comma, or anything is allowed. Display types: disp=comma, disp=semi, disp=or, disp=output only, disp=output number only, disp=x and disp=b. The numeric results are identical to using Template:Convert for each amount individually.

Common problems
Note the name of this template is "convert/4" and omitting the suffix "/4" can cause the error message: " Template loop detected: Template:Convert/x". Be sure to put a range-word (such as "x") between each of the 4 amounts, to avoid error "Convert/4 - Invalid parameter 2 ".

The 4 amounts, with 3 range-words, are followed by a unit-code (such as "m") as the 8th parameter. The output unit-code can be "0" as the 9th parameter, to allow the default output unit to be triggered.
 * }