Calorie-Count About.com Health
Calories Burned for Activity: Raking Lawn

292 calories per hour

Assuming a body weight of: 150 lbs
This is equivalent to eating any of the lines of the following table.

Quantity Description Cals
1.1 Grande Starbucks Caffe Latte - Made with whole milk 260
0.4 McDonald's Big Mac - With cheese 704
3.7 Glasses of wine (3.5 fl oz) 79
1.1 Snickers Bar 273
1.4 Cans of Coca-Cola 207
9.7 Carrots 30