< User:Voludu2 | sandbox
{{#switch: |less = {{#expr: 15 - 1 meters ({{#expr: 49.21 - 1 feet) |greater = {{#expr: 15 + 1 meters (Expression error: Unrecognized word "feet".
{{#switch: |less = {{#expr: 15 - 1 meters ({{#expr: 49.21 - 1 feet) |greater = {{#expr: 15 + 1 meters (Expression error: Unrecognized word "feet".