Some of our traditional terms are more complicated to convert from one system to another. 405 metric tons per acreДЎ metric ton per hectare = 892 pounds per acreДЎ metric ton per hectare = 100 grams per square meter Grain yields tons per hectareДЎ metric ton per hectare =. ton per acre = 2.24 metric tons per hectareДЎ U.S. A reading of 37В° on the Celsius scale is the approximate equivalent to human body temperature (98.6В° F) and water boils at 100В° C (212В° F).ДЎ U.S. The temperature at which water freezes is 0В° and is equivalent to 32В° F (Fahrenheit). Temperature is measured in the Celsius (C) scale. One liter of water weighs one kilogram at sea level.ДЎ metric ton (MT or t) = 2,204.62 (2200) poundsДЎ bushel corn (56#) = 25.40 (25) kilogramsДЎ bushel wheat/soybeans (60#) = 27.22 (27) kilogramsДЎ quintal = 3.937 (4) bushels corn (56# bu)ДЎ quintal = 3.674 (3.7) bushels wheat/soybeans (60# bu)ДЎ metric ton = 39.37 (40) bushels corn (56# bu)ДЎ metric ton = 36.74 (37) bushels wheat/soybeans (60# bu) Temperature A gram (1/1,000 kilogram is approximately the weight of a paper clip), and is used for making very small measurements. Weight (or more technically accurate, mass) in the metric system is measured in kilograms (kg). Very large volumes may be measured in cubic meters (1 cubic meter = about 264 gallons).ДЎ cubic meter = 28.38 (30) bushels Weight A liter contains slightly more liquid than a quart. Contained in this cube are 1,000 cubic centimeters or one liter. The basic unit of volume in the metric system is a cube, 10 centimeters on each side. 3861 (.4) square milesДЎ square mile = 2.590 (2.6) square kilometersДЎ square mile = 259 (260) hectares Volume (capacity) This unit of land is called the hectare (ha) and is equal to approximately 2.5 acres.ДЎ square meter (sq m) = 1.196 (1.2) square yardsДЎ square kilometer (sq km) =. The basic metric unit of land area measurement is a square with each side 100 meters long, covering an area of 10,000 square meters. A centimeter (one-hundredth of a meter) is slightly less than one-half of an inch. A speed of 100 kilometers per hour is about 60 miles per hour. So a distance of 100 kilometers is about 60 miles. The basic unit of length is the meter-slightly more than one yard in length. Easy-to-remember approximate or ball-park conversions are often used in general discussion. Precise conversions are used for exact technical analysis. Precise and approximate (in parentheses) metric conversions are in the next column.

Conversions between these measurements are simple decimal locations based on factors of 10. Thus, all dimensions of length can be expressed as variations of a meter. For example, a long distance is expressed in kilometers (1,000 meters) or a short length may be expressed in millimeters (1/1,000 of a meter). Metric units can be modified by adding a prefix to simplify expressions of very short or long units. So we often need to make conversions between our system and the metric system. The United States is the only major trading nation that does not use the metric system. Most of the world does its measuring in meters, grams, and liters.

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