Feet to Square Feet Calculator

Whether you're planning to renovate your room, buy tiles for your floor, or estimate the area of your house, knowing how to calculate square feet from feet is essential. That’s why we’ve developed this simple yet powerful Feet to Square Feet Calculator to help you calculate area easily from length and width values given in feet or other units.

This tool is ideal for homeowners, construction professionals, students, and anyone who needs to convert feet into square feet accurately.

How to Calculate Square Feet from Feet

To calculate square footage, you simply multiply the length by the width. Both values should be in the same unit (typically feet).

Formula:

Square Feet = Length (in feet) × Width (in feet)

Example Calculations

Here are a few examples of how to convert feet to square feet:

What is 10 feet × 12 feet in square feet?

10 ft × 12 ft = 120 sq ft

What is 15 feet × 10 feet in square feet?

15 ft × 10 ft = 150 sq ft

What is 12x12 in square feet?

12 ft × 12 ft = 144 square feet

How to Use the Feet to Square Feet Calculator

1. Select the shape of the area (Rectangle, Circle, Triangle).
2. Enter the length and width in feet (or use inches, meters, etc.).
3. Click the “Calculate” button.
4. The calculator instantly shows you the area in square feet along with the formula used.

This tool also supports input in other units like inches, meters, and yards, and automatically converts them to square feet.

How to Calculate Square Feet of a House

To calculate the total square footage of a house:

• Measure each room’s length and width in feet.
• Multiply the length by width to get the square footage of each room.
• Add the square footage of all rooms to get the total house area.

How to Calculate Square Feet of a Room

If your room is rectangular:

• Measure length and width in feet.
• Multiply both: Length × Width = Square Feet.

If your room is circular or triangular, use our calculator and choose the respective shape to get an accurate result.

How to Calculate Square Feet of a Wall

To find out how much paint or wallpaper you need:

• Measure the height and width of the wall in feet.
• Use the formula: Height × Width = Square Feet.

Convert Inches to Square Feet

If your measurements are in inches:

• First, convert inches to feet: 1 inch = 0.0833 feet
• Then apply the formula: Length (ft) × Width (ft) = Square Feet

Or simply use our calculator and select inches from the dropdown!

Final Verdict

Measuring area doesn’t need to be complex. With our Feet to Square Feet Calculator, you can convert feet into square footage quickly, accurately, and without any confusion. Whether you're laying tiles, planning your interior, or buying carpet, this tool gives you instant answers and formulas at your fingertips.

Frequently Asked Questions

How do I convert feet into square feet?

Multiply the length in feet by the width in feet:

Area = Length × Width

How many feet is 1 square foot?

1 square foot is the area of a square with 1 foot on each side. So it does not convert directly to linear feet.

What is 12x12 in square feet?

12 ft × 12 ft = 144 square feet

How do you calculate square footage in feet?

Just multiply the length by the width, both in feet.

Can I calculate square feet from inches or meters?

Yes! Our calculator allows you to input values in inches, meters, yards, or centimeters. It automatically converts them to feet before calculating square feet.