Convert Square Feet (ft²) to Square Inches (in²) | ft² in in²

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# Let's convert Square Feet (ft²) to Square Inches (in²)

This quick and easy calculator will convert Square Feet (ft²) to Square Inches (in²) and show formula, brief history on the units and quick maths for the conversion.

## Quick Reference for Converting Square Feet to Square Inches

Formula
in² = ft² x 144
Quick Rough Maths
To get the Square Inches, multiply the number of Square Feet by 144.0
Square Feet (ft²) in 1 Square Inch
There are 0.01 Square Feet in 1 Square Inch
Square Inches (in²) in 1 Square Foot
There are 144 Square Inches 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 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.