30g. In a Martini ((1 Cocktail Serving)) there are about 160 calories out of which 0 calories come from fat. The total fat content of (1 Cocktail Serving) Martini is 0 g. Within the fat content, a Martini contains 0 g of saturated fat, 0 g of trans fat, 0 g of polyunsaturated fat and 0 g of monounsaturated fat.