Visualizing 2/3 of a Cup: How to Accurately Measure Without a Full Set
By Alexander Ross
Q1: What is the fastest way to measure 2/3 cup using only tablespoons?
A1: Measure out 10 level tablespoons, then add 2 level teaspoons. Because 3 teaspoons make up 1 tablespoon, this combination equals exactly 10.67 tablespoons (2/3 cup).
Q2: Can I use two 1/3 cups instead of buying a 2/3 measuring cup?
A2: Yes. Two level 1/3 measuring cups provide the exact mathematical and physical equivalent of 2/3 cup. Most commercial cup sets intentionally omit the 2/3 size because 1/3 can easily be used twice.
Q3: How many grams of butter equal 2/3 of a cup?
A3: Two-thirds of a cup of unsalted butter weighs approximately 151 grams. In standard American butter packaging, this equals 1 stick plus 2 tablespoons and 2 teaspoons (roughly 1.33 sticks).
Q4: Why does my cake turn out dry when measuring 2/3 cup with a coffee mug?
A4: Ceramic coffee mugs vary widely in volume and taper toward the base, making accurate visual estimation nearly impossible. Eyeballing 2/3 of a mug usually results in adding 20% to 50% more flour than specified, which throws off moisture ratios and dries out baked goods.
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
