 What is 80000ft² in Square Miles?
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# What is 80000 Square Feet (80000ft²) in Square Miles (mi²)?

What is 80000ft² in mi²? Convert 80000 Square Feet (80000ft²) to Square Miles (mi²) and show formula, brief history on the units and quick maths for the conversion.

## Quick Reference for Converting Square Feet to Square Miles

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

## Unit Information

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.

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).