These are listed largest to smallest, so that you can see how all volume measures are based on the liter.

• Liter (l): A liter is only slightly larger than a quart--about a quart plus a 1/4 cup (two ounces).

  A liter is equal to 2.1 pints. Estimate: two pints to a liter.

  A liter is equal to 1.06 quarts. Estimate: equal amounts.

  A liter is equal to 0.26 gallons. Estimate: four liters to a gallon.

• Milliliter (mL): A milliliter is equal to 0.03 fluid ounces, while 1 ounce is 29.6 mL. Estimate: Multiply milliliters by 0.03 to get ounces.

  A milliliter equals 0.67 tablespoons, while a tablespoon equals 14.78 mL. Estimate: 15 mL to each tablespoon. Fifteen for dinner? Don't run out of tablespoons!
  
  A milliliter equals 0.2 teaspoons, while a teaspoon equals 4.9 mL. Estimate: Five mL to each teaspoon. Multiply teaspoons by five to get milliliters. It takes five to make a tea party.