calories burned depends on weight and intensity plus time. Person weighing 150 pounds (68 kilos) walking at 3.0 miles per hour (5.6 kilometers per hour) on level ground will burn approximately 5-7 calories per minute. Depending on the weight of the bag, walking uphill, you may burn 8-11 calories per minute. And to make it even more complicated (sorry) you have to subtract the calories you would have already burned over that given time from the total (net calories). Average calories per 18 holes around 300 to 600 give or take a calorie.

Hope this helped.