Cubic mile

{{Short description|Rarely used unit of volume}}

{{otheruses|MI-3 (disambiguation)}}

{{Infobox unit

| bgcolor =

| name = cubic mile

| image =

| caption =

| standard = Imperial and US customary

| quantity = Volume

| symbol = mi³

| symbol2 = cu mi

| units1 = Imperial/US

| inunits1 =

{{ubl|{{val|1.4720|e=11}} ft³|{{val|5.4518|e=9}} yd³}}

| units2 = SI units

| inunits2 = {{ubl|{{val|4.1682|e=9}} m³|4.1682 km³}}

}}

A cubic mile (abbreviation: cu mi or mi³[http://physics.nist.gov/Pubs/SP811/appenB8.html NIST Guide to the SI - B.8 Factors for Units Listed Alphabetically]) is an imperial and US customary (non-SI non-metric) unit of volume, used in the United States, Canada and the United Kingdom. It is defined as the volume of a cube with sides of {{convert|1|mi|km|lk=on}} length, giving a volume of {{convert|1|mi3|km3}}.