Calculate how many calories you have burned (roughly) during your bodyweight workout. Include rest time.

Note: this calculator will help you get a rough estimate but how many calories you burn will also depend on your age and muscle mass. The younger you are, the more you'll burn and the more muscle mass you carry, and with bodyweight training you'll very quickly raise the number naturally, the more calories your body requires for living the more you burn even when you are not exercising. 

HIIT workouts will also have a different effect, they will not just burn extra calories during the workout itself, they will get your body working even after you have completed your session burning extra, on average twice as much as you would normally just going about your business. The reason for that lies in the microtears and structural changes that your muscles undergo every time you train hard. After the workout is over your muscles continue to remake themselves, vibrating at microcellular level. This raises your metabolic rate well above your normal resting state. This also helps explain why a very fit person doing the same workout as a not so fit person will actually burn fewer calories through it (which is why fit people constantly have to raise the bar). 

This calculator will help you log something in in case you are tracking yours and you need to have a number in mind.