If you are in the process of buying a new home or selling your old property, you have probably realized just how important it is to gain a clear and concise understanding of the logistical details that are unique to each residence. In a highly competitive housing market such as San Francisco, each square foot of property can make a difference with regards to appraisal value. In a situation where prior estimates of your home's size may have been slightly miscalculated, you may be losing money in a sale or paying too much for your next property. Understanding where and how to find the square footage of your house can have a significant impact when you enter the buying and selling phase of home ownership. Show
The Tax AssessorOne of the first places to look when seeking out a detailed report regarding the available square footage in your home is the tax assessor. The City and County of San Francisco Treasurer and Tax Collector maintains detailed reports of all properties within their jurisdiction. Here, you should be able to find a detailed evaluation of the property in question, including a review of its physical dimensions. While this document will be highly accurate, it is important to take note of when the evaluation was made. The reason for this is as follows: if additions or modifications have been made to the house since the filing of the report, it is possible that the square footage reported here may no longer be accurate. Contact an AppraiserIf you don't feel comfortable going room to room measuring your property, your next best option is to contact a professional appraiser. These individuals are required to accurately measure property on a regular basis, which means you should be able to obtain the information you need. However, keep in mind that hiring an appraiser does represent an additional cost which you may or may not be willing to pursue. Perhaps one of the more attractive reasons to hire an appraiser is that this individual can help you resolve any discrepancies that may exist with reports filed with the tax assessor. If you are planning on deducting any expenses related to your home, it is essential that issues such as these be resolved as soon as possible. A DIY ApproachUsing some of the latest smartphone app technology, it is possible to complete a measurement of your property without the assistance of an appraiser. Although this method of evaluation would not serve as a legal substitute for an appraiser, it could be the right choice if your reasons for finding the square footage of your house are less formal. Calculate a Rectangle AreaCalculator UseUse this calculator to find the square footage, square inches, square yardage, square meters or acres for a building, home, garden or construction project. Calculate square footage, inches, yardage, meters and acres for landscape, flooring, carpet, or tiling projects to estimate area and the amount of material you will need. Also calculate the cost of materials when you enter the price per square foot, price per square inch, price per square yard or price per square meter. Price is entered in the fields, for example, as If you want to calculate volume of bulk materials such as mulch or gravel you should use our calculator for cubic yards and cubic meters. Enter measurements in US units or metric units. Calculate area from your measurements in inches (in), feet (ft), yards (yd), millimeters (mm), centimeters (cm), or meters (m). You can also enter decimal values. For example, if you have one measurement that is 7'3" you can enter that as 7.25 feet (3"/12" = 0.25 ft). If you have a measurement of 245 cm you can also enter that as 2.45 m. How to Calculate Square FootageSquare footage is area expressed in square feet. Likewise, square yardage is area expressed in square yards. Square meters is also a common measure of area. Assume you have a rectangular area such as a room and, for example, you want to calculate the square footage area for flooring or carpet. The way to calculate a rectangular area is by measuring the length and width of your area then multiplying those two numbers together to get the area in feet squared (ft2). If you have on oddly shaped area, such as an L-shape, split it into square or rectanglualar sections and treat them as two separate areas. Calculate the area of each section then add them together for your total. If your measurements are in different units, say feet and inches, you can first convert those values to feet, then multiply them together to get the square footage of the area. Measure
Convert all of your measurements to feet
Calculate the Area as Square Footage
Convert among square inch, square foot, square yard and square meterYou could, for example, perform all of your measurements in inches or centimeters, calculate area in square inches or square centimeters then convert your final answer to the unit you need such as square feet or square meters. To convert among square feet, yards and meters use the following conversion factors. For other units use our calculator for area conversions.
Square Footage Formulas and Images for Different AreasSquare AreaCalculate square footage for a square areaUsing measurements in feet: Area (ft2) = Side Length x Side Length Rectangle AreaCalculate square footage for a rectangle areaUsing measurements in feet: Area (ft2) = Length x Width Rectangle Border AreaCalculate square footage for a rectangle border areaUsing measurements in feet: Inner Area (ft2) = Length x Width Total Area (ft2) = (Length + (2 x Border Width)) x (Width + (2 x Border Width)) Area (ft2) = Total Area - Inner Area Circle AreaCalculate square footage for a circle areaUsing measurements in feet: Area (ft2) = Pi x (Diameter/2)^2 Pi = 3.14 Circle Border AreaCalculate square footage for a circle border areaUsing measurements in feet: Outer Diameter = Inner Diameter + (2 x Border Width) Outer Area (ft2) Inner Area (ft2) Area (ft2) = Outer Area - Inner Area Pi = 3.14 Obviously, the Circle Border and Annulus are the same, just measured differently. Annulus AreaCalculate square footage for a annulus areaUsing measurements in feet: Outer Area (ft2) Inner Area (ft2) Area (ft2) = Outer Area - Inner Area Pi = 3.14 Obviously, the Circle Border and Annulus are the same, just measured differently. Triangle AreaCalculate square footage for a triangle areaUsing measurements in feet: Area (ft2) = (1/4) x square root[ (a+b+c) x (b+c-a) x (c+a-b) x (a+b-c) ] Trapezoid AreaCalculate square footage for a trapezoid areaUsing measurements in feet: Area (ft2) = ((a + b) / 2 )h Can Google Maps measure square footage?Yes, Maps has a built-in area calculator that automatically works out this figure for 2D objects. If you want to calculate area in Google Maps, you will need to zoom into the property or location that you're interested in. Once close enough, Google will show the property boundaries if they are available.
How do I find the square footage of a room in my house?Measure the length and width, in feet, of each room. Then, multiply the length by the width to calculate that room's square footage. For example: If a bedroom is 12 feet by 20 feet, it is 240 square feet (12 x 20 = 240).
How do you find the square footage of an exterior of the home?Calculating gross square footage is simple. Calculate the exterior dimensions of your building, as demonstrated in the above graphic. Measure the length and width of the building's walls. Multiply the length and width measurements to find square footage.
How do you find the square footage of a house with feet and inches?First, multiply the length and width of each space you measured in a room. This should include the room itself, any bump-out, and closets. Once you multiply the length by the width in inches of each space, divide that by 12. This will give the square feet of that space as a whole with a decimal remainder.
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