Square Footage Calculator
Calculate area for any space
Common Room Sizes
Material Estimator
About Square Footage
Square footage (area) measures the size of a two-dimensional space. It's essential for flooring, painting, real estate, and construction projects.
Formulas
- Rectangle: Length × Width
- Circle: π × Radius²
- Triangle: (Base × Height) ÷ 2
Conversion Factors
- 1 square foot = 144 square inches
- 1 square foot = 0.0929 square meters
- 9 square feet = 1 square yard
- 43,560 square feet = 1 acre
How to Use This Calculator
1Enter Your Values
Input the required values in the calculator fields above. Make sure all inputs are valid numbers.
2Click Calculate
Press the "Calculate" button to perform the calculation and see your results.
3Review Results
Review the calculated results displayed below. Use these values for your needs.
Formula
Formula will be calculated based on the inputs provided.
Example:
Example: Enter your values above and click Calculate to see the formula in action.
About Square Footage Calculator
The Square Footage Calculator is a useful tool for calculating square footage values. This calculator helps you quickly and accurately determine the results you need for your calculations.
When to Use This Calculator
- Quick Calculations: Get instant results without manual computation
- Accuracy: Ensure precise calculations every time
- Planning: Use for project planning and estimation
- Verification: Double-check your manual calculations
Why Use Our Calculator?
- ✅ Instant Results: Get accurate calculations immediately
- ✅ Easy to Use: Simple interface for all skill levels
- ✅ 100% Free: No registration or payment required
- ✅ Mobile Friendly: Works on all devices
- ✅ Accurate: Precise mathematical calculations
Tips for Best Results
- Double-Check Inputs: Verify all values before calculating
- Use Valid Numbers: Ensure inputs are valid numbers
- Review Results: Check results for reasonableness
- Clear and Retry: Clear inputs if you need to recalculate
Frequently Asked Questions
How to Use This Calculator
Enter Your Values
Input the required values in the calculator fields above. Make sure all inputs are valid numbers.
Click Calculate
Press the "Calculate" button to perform the calculation and see your results.
Review Results
Review the calculated results displayed below. Use these values for your needs.
Formula
Formula will be calculated based on the inputs provided.
Example:
Example: Enter your values above and click Calculate to see the formula in action.
About Square Footage Calculator
The Square Footage Calculator is a useful tool for calculating square footage values. This calculator helps you quickly and accurately determine the results you need for your calculations.
When to Use This Calculator
- Quick Calculations: Get instant results without manual computation
- Accuracy: Ensure precise calculations every time
- Planning: Use for project planning and estimation
- Verification: Double-check your manual calculations
Why Use Our Calculator?
- ✅ Instant Results: Get accurate calculations immediately
- ✅ Easy to Use: Simple interface for all skill levels
- ✅ 100% Free: No registration or payment required
- ✅ Mobile Friendly: Works on all devices
- ✅ Accurate: Precise mathematical calculations
Tips for Best Results
- Double-Check Inputs: Verify all values before calculating
- Use Valid Numbers: Ensure inputs are valid numbers
- Review Results: Check results for reasonableness
- Clear and Retry: Clear inputs if you need to recalculate
How do I measure square footage of a room?
For a rectangle, measure length and width in feet, then multiply. For irregular shapes, divide into rectangles, calculate each, and add them together.
How much flooring should I buy?
Add 10-15% extra for waste, cuts, and future repairs. For tiles, add 15-20% since breakage is common. Round up to full boxes.
How much paint do I need?
One gallon covers ~350 sq ft. For walls, multiply room perimeter by height, subtract doors/windows. Most rooms need 2 coats.
What's the difference between square feet and cubic feet?
Square feet measure area (2D surface). Cubic feet measure volume (3D space). For volume, multiply area by height.
How many square feet in a typical house?
US average: ~2,000 sq ft. Small house: 1,000-1,500 sq ft. Large house: 3,000-5,000+ sq ft. Apartments: 600-1,200 sq ft.