This is a subtemplate of {{Infobox islands}}, and should not be used directly.

Input Output
{{Infobox islands/length|km=0.5}} 0.5 km (0.31 mi)
{{Infobox islands/length|mi=0.3}} 0.3 mi (0.5 km)
{{Infobox islands/length|m=500}} 500 m (1,600 ft)
{{Infobox islands/length|ft=1610}} 1,610 ft (491 m)
{{Infobox islands/length|km=0.5|mi=0.3}} 0.5 km (0.3 mi)
{{Infobox islands/length|m=500|ft=1610}} 500 m (1,610 ft)
{{Infobox islands/length|km=0.5|m=500}} 0.5 km (0.31 mi)
{{Infobox islands/length|mi=0.3|ft=1610}} 0.3 mi (0.5 km)
{{Infobox islands/length|m=500|mi=0.3|ft=1610}} 0.3 mi (0.5 km)
{{Infobox islands/length|km=0.5|mi=0.3|ft=1610}} 0.5 km (0.3 mi)
{{Infobox islands/length|km=0.5|m=500|ft=1610}} 0.5 km (0.31 mi)
{{Infobox islands/length|km=0.5|m=500|mi=0.3}} 0.5 km (0.3 mi)
{{Infobox islands/length|km=0.5|m=500|mi=0.3|ft=1610}} 0.5 km (0.3 mi)
  • {{convert|0.5|km|abbr=on}} → 0.5 km (0.31 মাইল)
  • {{convert|0.3|mi|abbr=on}} → 0.3 মাইল (0.48 km)
  • {{convert|500|m|abbr=on}} → 500 মিটাৰ (1,600 ফুট)
  • {{convert|1610|ft|abbr=on}} → 1,610 ফুট (490 মিটাৰ)

The code uses {{precision}} to determine the level of precision. The logic is to give preference to km/mi over m/ft. If both km and mi are specified, then no conversion takes place. Similarly, if both m and ft are specified (and km/mi are not specified), then no conversion takes place.