What is 420ft² in Acres?

You are: Home > Area > Square Feet to Acres

What is 420 Square Feet (420ft²) in Acres (ac)?

What is 420ft² in ac? Convert 420 Square Feet (420ft²) to Acres (ac) and show formula, brief history on the units and quick maths for the conversion.

Enter Square Feet to convert to Acres


Quick Reference for Converting Square Feet to Acres

Formula
ac = ft² / 43560
Quick Rough Maths
To get the Acres, divide the number of Square Feet by 43.6 thousand
Square Feet (ft²) in 1 Acre
There are 43560 Square Feet in 1 Acre
Acres (ac) in 1 Square Foot
There are 0 Acres 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.

Acre
/ˈeɪkə/
Symbol: ac
Unit System: Imperial / US Customary

What is the Acre?

The acre is a unit of area and is used in the imperial and US customary systems with the symbol a.

It represents the area the size of one chain by one furlong (66 by 660 feet). This is exactly equal to 10 square chains, ​1⁄640 of a square mile or 43,560 square feet.

It is generally used to measure the size of land.


Conversion Tables for Square Feet (ft²) to Acres (ac)