【Top Gambling Bonuses No Deposit India】How many centimeters is a 6-inch cake suitable for? How many people can a 6-inch cake be eaten by? 6 inches is 15.24cm, which can be eaten by about 2-4 people. 2 and 8 inches are 20.32cm. Serves 4-6 people, suitable for birthday parties, various festivals and visiting relatives and friends. 3. 10 inches is 25.4cm, suitable for 6-10 people, suitable for birthday parties, various