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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