The height of 3 feet is equivalent to approximately 0.914 meters or 91.4 centimeters. This conversion is based on the fact that 1 foot equals 0.3048 meters. So, multiplying 3 feet by 0.3048 yields 0.914 meters. Similarly, in centimeters, 3 feet equals 91.4 cm since 1 foot equals 30.48 cm.