When I was searching around for advice I found quite a few websites offering free calorie counters for dogs. You type in factors like their age, weight, activity levels and hey presto it gives you the magic number of calories required per day. When I was searching around for advice I found quite a few websites offering free calorie counters for dogs. You type in factors like their age, weight, activity levels and hey presto it gives you the magic number of calories required per day.