A 180-pound person burns about 1.43 calories per burpee, says exercise scientist and Spartan Coach Jeff Godin.
So if you can hammer out at least seven a minute, you're in the double digits.
But you should shoot to average at least 10 every 60 seconds, or a rate of 14.3 calories per minute.
Performing just 10 reps at a fast pace can rev your metabolism as much as a 30-second, all-out bike sprint, according to a study presented at the American College of Sports Medicine annual meeting.
Burpees have a long and illustrious history as a butt-kicking exercise, as they were used by the U.S. military to test recruits during World War II.