# conversions

CONVERSIONS TABLE

Some handy conversions for common measurements used by spa and hot tub owners.
Numbers are close approximations.

 U.S. to MetricCapacity1/5 teaspoon = 1 millilitre1 teaspoon = 5 ml1 tablespoon = 15 ml1/5 cup = 50 ml1 cup = 240 ml2 cups (1 pint) = 470 ml4 cups (1 quart) = .95 litre4 quarts (1 gal.) = 3.8 litresWeight1 fluid oz. = 30 millilitres1 fluid oz. = 28 grams1 pound = 454 grams Metric to U.S.Capacity1 millilitre = 1/5 teaspoon5 ml = 1 teaspoon15 ml = 1 tablespoon34 ml = 1 fluid oz.100 ml = 3.4 fluid oz.240 ml = 1 cup1 litre = 34 fluid oz1 litre = 4.2 cups1 litre = 2.1 pints1 litre = 1.06 quarts1 litre = .26 gallonWeight1 gram = .035 ounce100 grams = 3.5 ounces500 grams = 1.10 pounds1 kilogram = 2.205 pounds1 kilogram = 35 oz. Household Measurement Equivalents16 tablespoons = 1 cup12 tablespoons = 3/4 cup10 tablespoons + 2 teaspoons = 2/3 cup8 tablespoons = 1/2 cup6 tablespoons = 3/8 cup5 tablespoons + 1 teaspoon = 1/3 cup4 tablespoons = 1/4 cup2 tablespoons = 1/8 cup2 tablespoons + 2 teaspoons = 1/6 cup1 tablespoon = 1/16 cup2 cups = 1 pint2 pints = 1 quart4 quarts = 1 gallon1 gallon = 231 cubic inches1 gallon water = 8.34 pounds3 teaspoons = 1 tablespoon48 teaspoons = 1 cup1 teaspoon = 1/6 ounce6 teaspoons = 1 ounce1 tablespoon = 1/2 ounce2 tablespoons = 1 ounce

Water Weight (rounded)

 Pounds Grams Kilograms Cubic cm. 0.0022 1 0.001 Cubic inch 0.036 16.4 0.016 Litre 2.2 1000 1 Gallon 8.35 3785 3.8 Cubic foot 62.4 28317 28.3

Electrical
amps x volts = watts
volts = amps x resistance (in ohms)
1000 watts = 1 kilowatt
1 kilowatt hour (kWh) = 1000 watts used in 1 hour

Parts per Million/Milligrams per Litre
1 ppm = 1 mg/L (in water)