If you can only find a ruler with feet (ft) or inches (in), measure with those instead, then go to the section on converting to square meters.
If the object is longer than 1 meter, remember to include both the meter and centimeter parts of the measurement. For instance, “2 meters 35 centimeters. " If you want to measure an object that isn’t rectangular or square, read the Complex Shapes section instead.
If the room isn’t rectangular, break it into a number of small rectangles, then measure those. For example, if the room is L-shaped, break that up into two non-overlapping rectangles. [3] X Expert Source Mario Banuelos, PhDAssistant Professor of Mathematics Expert Interview. 11 December 2021.
Unless the object you’re measuring is much smaller than 1 meter, you can round to the nearest centimeter when making your measurements. For instance, if the width is slightly past the 1 meter 8 centimeter mark, just use ‘“1m 8cm” as your measurement, without using decimals or millimeter measurements.
35cm = 0. 35m, so 2m 35cm = 2m + 0. 35m = 2. 35m 8cm = 0. 08m, so 1m 8cm = 1. 08m
2. 35m x 1. 08m = 2. 538 square meters (m2).
Whenever you multiply two numbers with the same units (for instance, meters), the answer is always in the form of that unit squared (m2, or square meters).
Whenever you multiply two numbers with the same units (for instance, meters), the answer is always in the form of that unit squared (m2, or square meters).
For greater precision, multiply by 0. 092903 instead.
For greater precision, multiply by 0. 83613 instead.
If you really want to convert to square meters, 1 square kilometer = 1,000,000 square meters.
Don’t use the calculations in this section to convert between units of length. That requires different numbers.
Don’t use the calculations in this section to convert between units of length. That requires different numbers.
Don’t use the calculations in this section to convert between units of length. That requires different numbers.
If you are measuring in a different unit, look at the section on other units.
This works because a right triangle is exactly the size of a rectangle cut in half. Basically, you found the area of a rectangle as usual, then divided by two to get the area of the triangle.
If you’re not sure where the center is, have a friend hold a tape measure and walk around the edge of the circle. Hold the other end of the tape measure and adjust your position until the measurement stays the same while your friend walks around the entire edge. More complicated curved boundaries require more advanced math to calculate. If you are measuring a room for practical purposes, it might be easier to estimate the area by pretending the curved surfaces are a series of straight lines.
