Conversion Factors
Conversion Factors
Length:
100 centimeters (cm) = 1 meter (m)
1000 millimeters (mm) = 1 meter
3.28 feet (ft) = 1 meter
2.54 centimeters = 1 inch (in)
1000 meters = 1 kilometer (km)
1 kilometer = 0.62 miles (mi)
1 meter = 39.37 inches
1 meter = 1.094 yards (yd)
1 foot = 30.5 centimeters
1 yard = 0.915 meters
10 millimeters = 1 centimeter
Mass:
1000 grams (g) = 1 kilogram (kg)
1 gram = 1000 milligrams (mg)
1 gram = 100 centigrams (cg)
1 gram = 15.4 grains (gr)
1 gram = 0.035 ounces (oz)
1 pound = 454 grams
1 kilogram = 2.20 pounds (lbs)
2000 pounds = 1 ton
1 metric ton = 2200 pounds
1 ounce = 28.35 grams
Volume:
1000 milliliters (mL) = 1 L
1 liter = 1000 cubic centimeters (cc or cm3)
1 liter = 1.06 quarts
1 quart = 946 cubic centimeters
1 quart = 946 milliliters
1 quart = 0.946 liters
1 cubic centimeter = 1 milliliter
1 cubic centimeter = 1 gram (of distilled water only)
4 Quarts (qt) = 1 gallon (gal)
Rules for Significant Figures
1. Non-zero digits and zeros between non-zero digits are always significant.
2. Leading zeros are not significant
3. Zeros to the right of all non-zero digits are only significant if a decimal place is shown.
4. For values written in scientific notation, the digits in the coefficient are significant.
5. In a common logarithm, there are as many digits after the decimal point as there are significant figures in the original number.
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