الگو:Convert/با

{{convert/{{{۴}}}|{{{۱}}}|با|{{{۳}}}|{{{۵}}}|||s=(۰٫۵)+(۰{{{s}}})|r={{{r}}}|d=Dual/{{{d}}}}}

The الگو:Convert/by (for ranges using "by") is invoked as the first template below {Convert}, for converting ranges such as {Convert|2|by|4|ft|m}. It immediately invokes Convert/{4}, for the input unit {4}, passing the range of input numbers as "{1}|by|{3}". Having obtained all 8 parameters, {1}|by|{3}-{8}, it sets the precision "s" from either parameter {5}, {6} or {8} (depending on whichever is the numeric round-number); otherwise, the precision is set as: s=(0.5)+(0{{{s}}}). It passes {d} down as Dual/{d} to invoke subtemplate Convert/Dual/{d} which displays the dual-range (rather than a typical single amount). For any customization، such as disp=x، the parameters {۶} and {۷} are passed as {۵} and {۶} (or null if none).