Eat right Exercise right...

To some extent it is correct to eat a little more when one exercises. However, for most people the body's basic use of energy makes the greatest demands and the difference between this and the amount needed for exercise is small. Example for a person weighing 73 kg or 160 lbs:

Normal burning while sleeping or sitting	1900 kcal/day
Walking a pram with a child	200 kcal/hour
Walking, rapidly	340 kcal/hour
Walking, upstairs	600 kcal/hour
Intensive gymnastics	750 kcal/hour
Running, skiing, bicycling	500-1000 kcal/hour, depends on speed
Swimming leisurely	400 kcal/hour
Climbing up a mountain	800 kcal/hour
Rowing at moderate speed	600 kcal/hour
Caring for a child	200 kcal/hour
Housecleaning, rapid	300 kcal/hour
Housecleaning, slowly	200 kcal/hour
Gardening	350 kcal/hour

Exercise, however, is healthy in other ways than burning calories. Exercise changes your body so that you will easier adjust your eating to your nutrient need.