The prime objective of the present study was to estimate the basal metabolic rate (BMR) and resting metabolic rate (RMR) among school going boys of 5-18 year of age. The subjects were recruited from government schools of Sagar town of Madhya Pradesh state of Indian
Union. Height and weight of the boys were measured using standard anthropometric techniques. Body mass index (BMI) and metabolic rates (BMR/RMR) were computed for each individual. It was found that mean of BMI varies from 13.8±1.6 Kg m-2 among boys of 8 year of age to 19.0±1.9 Kg m-2 among boys of 17 year of age. Similarly, mean of Basal metabolic rate (BMR) varies from 1219.0±106.9 K cal/day among boys aged 5 year of age to 2296.3±255.9 K cal/day among 17 year of age. Pre pubertal and pubertal boys have significant difference in their basal metabolic rates as well as stunted, underweight and undernourished boys have significant low BMR. The linear bivariate regression analysis shows that the BMR is dependent on BMI, weight and height. The RMR have highest regression coefficient (r2=0.935) on BMR, followed by Height (r2=0.664), weight (r2=0.631) and body mass index (r2=0.368). The similar trends can be seen for RMR also. The BMR is highly dependent on RMR followed by height, weight and BMI.