Is Square Footage Calculator free to use?

Yes, Square Footage Calculator is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using Square Footage Calculator?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

Calculators

Calculate area in square feet, meters, yards, or acres for rectangles, circles, triangles, and trapezoids — with cost estimation

Trusted by 10k+ developers

Shape

Units

Length

Width

Quantity (rooms)

Cost per Square Foot ($, optional)

Square Feet

120 ft²

Square Meters11.15 m²

Square Yards13.33 yd²

Acres0.00275 ac

Calculate percentages, tip amounts, and percentage changes with precision

Advanced multi-functional calculator with trigonometric, logarithmic, and exponential functions

Calculate mean, median, mode, standard deviation, and variance for sets of data

Add, subtract, multiply, and divide fractions, and simplify them to lowest terms

Calculate your exact age in years, months, weeks, days, and even minutes

Convert your dog or cat's age to human years based on species, size, and AVMA guidelines

Track your academic performance with weighted GPA and semester grade estimates

Compute network ranges, broadcast addresses, and CIDR masks for IPv4 networking

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