Square Feet to Square Inches Converter
Unit ConversionConvert square feet to square inches. 1 square foot equals exactly 144 square inches, with a conversion table, worked examples and the reverse conversion.
Square Inches
Equivalent area in square inches
Found this calculator useful?
From Scratch To $10K/Month In 60 Days
This is a proven money making system that takes students by the hand to make at least $10,000 per month, every month. Students get 12 weeks of guided coaching in addition to the "MPS Super Funnel" and tools.
We value your privacy and promise not to sell or misuse your information. Here's our privacy policy.
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Unit Conversion calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Unit Conversion calculators
Sponsored
SponsoredThis converter turns square feet into square inches (sq ft to sq in). Enter a value and the result updates as you type. 1 square foot equals exactly 144 square inches.
There are 144 square inches in a square foot, because a foot is 12 inches and a square foot is 12 inches by 12 inches. Square inches suit small items such as tiles, screens, signs and stickers, and some materials are priced per square inch, so this conversion breaks a square-foot figure down to that scale.
The result is rounded to 2 decimal places, but the factor behind it never is, so long chains of conversions stay accurate. You can type decimals, thousands separators or fractions such as 2 1/2, and the conversion table below lists common values.
How to Convert Square Feet to Square Inches
To convert square feet to square inches, multiply by 144. For example, 5 square feet equals exactly 720 square inches.
To go from square inches back to square feet, divide by 144. For example, 1,000 square inches is about 6.9444 square feet.
Square Feet to Square Inches Conversion Table
Common values in square feet converted to square inches, rounded to 2 decimal places.
| Square Feet | Square Inches |
|---|---|
| 0.25 ft² | 36 in² |
| 0.5 ft² | 72 in² |
| 1 ft² | 144 in² |
| 1.5 ft² | 216 in² |
| 2 ft² | 288 in² |
| 3 ft² | 432 in² |
| 3.5 ft² | 504 in² |
| 5 ft² | 720 in² |
| 9 ft² | 1,296 in² |
| 10 ft² | 1,440 in² |
| 25 ft² | 3,600 in² |
| 100 ft² | 14,400 in² |
How Many Square Inches in a Square Foot
It is 144, not 12. There are 12 inches in a foot, but a square foot has 12 inches in both directions, so it holds 12 rows of 12 square inches. The Inch Converter handles the length step, where 12 is right.
A price per square foot divides by 144 to give the price per square inch, and the Price per Square Inch Calculator compares items priced that way, such as pizzas or prints.
Frequently Asked Questions
How many square inches is 4 square feet?
4 square feet equals exactly 576 square inches.
How many square inches is a 2 by 3 foot sign?
6 square feet equals exactly 864 square inches.
How many square inches is 1.25 square feet?
1.25 square feet equals exactly 180 square inches.
How many square inches is 12 square feet?
12 square feet equals exactly 1,728 square inches.
What happens if I enter a negative number?
The result shows a dash. An area is a size, so it is never below zero; a negative value usually means a typing mistake, such as a stray minus sign.
Spot a mistake? Tell us what's wrong.
Request a calculator. The most-requested ones get built first in our monthly batch.
Request a calculatorWant this calculator on your website?
Embed the Square Feet to Square Inches Converter on any site — no code needed. Customize colors, remove branding, and track usage.
SponsoredSponsored