Convert Square Inches (in²) to Square Miles (mi²) | in² in mi²

You are: Home > Area > Square Inches to Square Miles

Let's convert Square Inches (in²) to Square Miles (mi²)

This quick and easy calculator will convert Square Inches (in²) to Square Miles (mi²) and show formula, brief history on the units and quick maths for the conversion.

Enter Square Inches to convert to Square Miles


Quick Reference for Converting Square Inches to Square Miles

Formula
mi² = in² / 4014489428.98
Quick Rough Maths
To get the Square Miles, divide the number of Square Inches by 4 billion
Square Inches (in²) in 1 Square Mile
There are 4014489428.98 Square Inches in 1 Square Mile
Square Miles (mi²) in 1 Square Inch
There are 0 Square Miles in 1 Square Inch

Unit Information

Square Inch
/skwɛːˌɪn(t)ʃ/
Symbol: in²
Unit System: Imperial

What is the Square Inch?

The square inch is a unit of area and is an imperial unit with the symbol in².

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

The square inch is a common unit of measurement in the UK and US.

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).


Conversion Tables for Square Inches (in²) to Square Miles (mi²)