SUMMARY
The design and construction of an electronic Body Mass Index (BMI) has been carried out in this study. The design calculates the BMI automatically by overcoming marginal errors. The design incorporates the functions of PING))) sensor, digital weight sensor into the system. C programming code was writing in programming a microcontroller that controls the whole design. The measured height and weight are processed by the programmed microcontroller which then generates BMI being display on a Liquid Crystal Display (LCD). The designed system was used to estimate the BMI of eight individuals of different gender. The performance evaluation of the system was compared with the four groups category cited by World Health Organization in the BMI chart.