35+ How To Measure 3/4 Teaspoon Today. One teaspoon is equivalent to 1/3 tablespoons, 5 milliliters, or 1/6 ounces. 1/4 teaspoon = 2 pinches between thumb, index and middle fingers. 6 Pcs Stainless Steel Measuring Spoons, SEGMART Stackable Measuring from www.walmart.com 1 teaspoon = top joint of index finger. Straightly, ¾ teaspoon is ¼ of …