Volume measurements and units of measure. This ignores the obvious cubic units. EG: cubic meters, cubic feet. More proof of the superiority of the metric system.

## Metric

The metric or SI (System Internationale) is measured in L and mL.

• 1 L = 0.001 m3 = 1 dm3 = 10 cm x 10 cm x 10 cm = 1000 cm3 = 1000 mL
• 1 L = 0.2199692 gallon [UK] = 0.2270207 gallon [US, dry] = 0.2641721 gallon [US, liquid].
• 1 mL = 1 cm3 = 1 cc.
• 1 µL = mm3.

## U.K. System

The U.K. System (aka the IS or Imperial System) used to be defined by standards held in London. Canada used to use the IS, but now they use SI. The IS differs from the USS only by their units of measurement for volume. IS is now defined by 3 exact measurements.

• 1 gallon = 4 quarts = 8 pints = 16 cups = 32 gills = 4.54609 L
• 1 quart = 2 pints = 4 cups = 8 gills = 1.1365225 L
• 1 pint = 2 cups = 4 gills = 20 ounces = 0.56826125 L = 568.26125 mL
• 1 cup = 2 gills = 10 ounces = 0.284130625 L = 284.130625 mL
• 1 gill = 5 ounces = 0.1420653125 L = 142.0653125 mL
• 1 ounce = 0.0284130625 L = 28.4130625 mL

## U.S. System

The US System (USS) differs from the IS only by their units of measurement for volume. USS dry ounces (for mass) are different from liquid ounces (for volume).

• 1 gallon (liquid) = 4 quarts = 5 fifths = 8 pints = 16 cups = 32 gills = 128 fluid ounces = 3.785411784 L
• 1 quart = 2 pints = 4 cups = 8 gills = 32 fluid ounces = 0.946352946 L = 946.352946 mL
• 1 pint = 2 cups = 4 gills = 16 fluid ounces = 32 T (tablespoons or tbsp.) = 0.473176473 L = 473.176473 mL
• 1 cup = 2 gills = 8 fluid ounces = 16 T = 0.2365882365 L = 236.5882365 mL
• 1 gill = 4 fluid ounces = 8 T = 24 t (teaspoons or tsp.) = 0.11829411825 L = 118.29411825 mL
• 1 fluid ounce = 2 T = 6 t = 8 fluid drams/drachms = 24 fluid scruples = 480 minims = 29.5735295625 mL
• 1 T = 3 t = 4 fluid drams/drachms = 12 fluid scruples = 240 minims = 14.78676478125 mL
• Here are a few other odd USS units of measure for liquids:
• 1 fifth = 25.6 fluid ounces = 0.7570823568 L = 757.0823568 mL
• 1 jigger = 1.5 fluid ounces = 44.36029434375 mL
• 1 t = 76 drops = 4.92892159375 mL
• 1 dash = 6 drops = 0.38912538898026315789473684210526 mL = 389.12538898026315789473684210526 µL.
• 1 drop = 0.064854231496710526315789473684211 mL = 64.854231496710526315789473684211 µL.
• 1 bushel (dry) = 4 pecks = 8 gallons = 32 quarts = 64 pints = 35.23907016688 L
• 1 peck = 2 gallons = 8 quarts = 16 pints = 8.80976754172 L
• 1 gallon = 4 quarts = 8 pints = 4.40488377086 L
• 1 quart = 2 pints = 1.101220942715 L
• 1 pint = 0.5506104713575 L = 550.6104713575 mL

## Miscellany

Traditional Japanese volumes. A 枡 or masu box was often used to measure out rice (or sake) but a masu varied from 1 to to 5 .

• 1 石 = 1 koku := 240100/1331 L ~180.39 L. Traditionally the amount of rice it took to feed one person for one year, but standardized in 1891
• 1 斗 = 1 to := 1/10 koku := 24010/1331 L.
• 1 升 = 1 shō := 1/10 to := 2401/1331 L. A common size for sake bottles.
• 1 合 = 1 := 1/10 shō := 240.1/1331 L. The standard "cup" in many rice cooker. The standard serving size of sake.
• 1 勺 = 1 shaku := 1/10 := 24.01/1331 L.
• 1 才 = 1 sai := 1/10 shaku := 2.401/1331 L.

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