Convert Square Miles (mi²) to Square Feet (ft²) | mi² in ft²

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Let's convert Square Miles (mi²) to Square Feet (ft²)

This quick and easy calculator will convert Square Miles (mi²) to Square Feet (ft²) and show formula, brief history on the units and quick maths for the conversion.

Enter Square Miles to convert to Square Feet


Quick Reference for Converting Square Miles to Square Feet

Formula
ft² = mi² x 27878398.81
Quick Rough Maths
To get the Square Feet, multiply the number of Square Miles by 27.9 million
Square Miles (mi²) in 1 Square Foot
There are 0 Square Miles in 1 Square Foot
Square Feet (ft²) in 1 Square Mile
There are 27878398.81 Square Feet in 1 Square Mile

Unit Information

Square Mile
/skwɛːˌmʌɪl/
Symbol: mi²
Unit System: Imperial

What is the Square Mile?

The square mile is a unit of area and is an imperial unit with the symbol mi².

One square mile is equal in area to a square with edges one mile in length.

The Romans established the square mile; computed through a system of feet, paces and marches. The square mile's existence still remains in some places; for example "The Square Mile" is a term often used to describe the very centre of London in the UK (which just so happens to measure 1mi²).

Square Foot
/skwɛːˌfʊt/
Symbol: ft²
Unit System: Imperial

What is the Square Foot?

The square foot is a unit of area and is an imperial unit with the symbol ft².

One square foot is equal in area to a square with edges one foot in length.

It is used a lot in expressing the internal size of a house, apartment, office or other properties so is a useful unit to understand.


Conversion Tables for Square Miles (mi²) to Square Feet (ft²)