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Square meter is an area measurement, often used to measure flat surfaces such as football fields or floors. For example, you measure the bed frame in square meters, then measure the area of the room in square meters to see if it fits. If you only have a ruler or tape measure that divides feet or non-meter units, you can still use it to calculate area, and then convert to square meters.
Steps
Calculate area in square meters
- If you can only find rulers that are in feet (ft) or inches (in), then just use them to measure, then see the section to convert units to square meters.
- If the object is longer than 1 meter, be sure to include both meters and centimeters of the measurement. For example, “2 meters 35 centimeters”.
- If you want to measure the area of an object that is not a square or a rectangle, read the Polygon section.
- Unless the object you are measuring is much less than 1m long, you can round to the nearest centimeter when measuring. For example, if the width is slightly longer than 1 m 8 cm, take 1 m 8 cm as the measurement without using decimals or millimeters (mm).
- 35 cm = 0.35 m, so 2 m 35 cm = 2 m + 0.35 m = 2.35 m
- 8 cm = 0.08 m, so 1 m 8 cm = 1.08 m
- 2.35m x 1.08m = 2,538 square meters (m 2 ).
- Whenever you multiply two numbers with the same unit of measure (for example, meters), the answer is always in the form of squared units (m 2 , or square meters).
Convert from another unit
- To be even more precise, multiply by 0.092903.
- To be even more precise, multiply by 0.83613.
- If you really want to convert to square meters, then 1 square kilometer = 1,000,000 square meters.
- Do not use the calculations in this section to apply conversions to length units. Because we need other numbers.
Calculate square meters with polygons
- If you’re measuring in other units, see the sections on other units.
- This method works because the right triangle is a rectangle cut in half. You basically worked out the area of a rectangle as usual, then divided by 2 to get the area of the triangle.
- If you’re not sure where the center is, ask a friend to hold one end of the ruler and walk around the edge of the circle. Hold the other end of the ruler and adjust your position until the measurement does not change when the friend moves around the edge of the circle.
- More complex curves require a more advanced calculation method to be calculated. If you’re just measuring the room for practice purposes, it’s easier to estimate the area by treating curved surfaces as a set of straight lines.
Advice
- Say “5 square meters” instead of “5 square meters”. Basically both ways are correct, but the second is often misunderstood as the area of a figure 5 meters long and 5 meters wide (meaning the area of the figure is 25 square meters, or 5×5). [2] X Research Source
- If you’re not sure if your calculation is correct, check your answer with the following ballpark measurements:
- An American football field has an area of about 5,400 square meters.
- The football association football field measures between 4,000 and 11,000 square meters. [3] X Research Sources
- A large mattress is about 5 square meters in size. [4] X Research Sources
Things you need
- Straight ruler or tape measure
- Computer
wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 16 people, some of whom are anonymous, have edited and improved the article over time.
This article has been viewed 321,802 times.
Square meter is an area measurement, often used to measure flat surfaces such as football fields or floors. For example, you measure the bed frame in square meters, then measure the area of the room in square meters to see if it fits. If you only have a ruler or tape measure that divides feet or non-meter units, you can still use it to calculate area, and then convert to square meters.
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