Basic Math & Pre-Algebra For Dummies, 2nd Edition
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The English system of measurements is most commonly used in the United States. In contrast, the metric system is used throughout most of the rest of the world. Converting measurements between the English and metric systems is a common everyday reason to know math. This article gives you some precise metric-to-English conversions, as well as some easy-to-remember conversions that are good enough for most situations.

Metric-to-English Conversion Table
Metric-to-English ConversionsMetric Units in Plain English
1 meter ≈ 3.28 feet A meter is about 3 feet (1 yard).
1 kilometer ≈ 0.62 miles A kilometer is about 1/2 mile.
1 liter ≈ 0.26 gallons A liter is about 1 quart (1/4 gallon).
1 kilogram ≈ 2.20 pounds A kilo is about 2 pounds.
0°C = 32°F 0°C is cold.
10°C = 50°F 10°C is cool.
20°C = 68°F 20°C is warm.
30°C = 86° 30°C is hot.

Here's an easy temperature conversion to remember: 16°C = 61°F.

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Mark Zegarelli is a math and test prep tutor and instructor. He is the author of Basic Math & Pre-Algebra For Dummies, SAT Math For Dummies, ACT Math For Dummies, Logic For Dummies, and Calculus II For Dummies.

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