Butter/Oil Conversion Chart BUTTER OR MARGARINE EXTRA VIRGIN OLIVE OIL 1 tsp 2/3 tsp 1 Tbsp 2 1/4 tsp 1/4 Cup 3 Tbsp 1/3 Cup 1/4 Cup 1/2 Cup 1/4 Cup + 2 Tbsp 2/3 Cup 1/2 Cup 3/4 Cup 1/2 Cup + 1 Tbsp 1 Cup 3/4 Cup