Tracking calories burned... the best way-MFP? Elliptical??
Might I suggest not worrying too much about how accurate the caloric numbers are for these different machines, and think in terms of them being "exercise credits" or something of the like, and then tracking how well you did week to week - I did 500 more credits this week than last week, or I did 500 more steps today than yesterday. If you are doing enough exercise consistently, your body will tell you if you need to add a few more average calories or carbs to your diet, and if you are tracking things consistently then you can check the results of any changes that you make.
As a side note, when I did the occasional mental calculations on such things, I generally cut those reported exercise calories in half to make them more credible to me - I couldn't quite buy that my weight training workouts were burning 1200 calories. The numbers seemed a little more realistic, but more importantly, they still reflected how things were changing and progressing over time - amount of exercise and intensity may have increased, but offsetting that was the somewhat lower burn rate that comes with declining weight.
YMMV, but have fun with it all and enjoy the ride.

1st support group/seminar - 8/03 (has it been that long?)
Wife's DS - 5/05 w Dr. Robert Rabkin VSG on 5/9/11 by Dr. John Rabkin
And even my treadmill and elliptical can only give a "best guess." I think there are just too many factors that go into the equation. And I hate math!!
So if you really want to know the numbers, I'm guessing you might want to talk to a personal trainer or somebody who can help you get close. Just a thought ....
I'd say as long as you use a method and are consistent with it you'll be fine.
MFP may be (probably is) too high. Although I use LiveStrong and I have checked the numbers that seemed too high against other sources and they matched.
However... the important thing is (as someone said above) track a relative level of effort and be consistent over time. You may not be burning 1200 calories, but can call it "Exer-Units" or something and track the effort. Over time you'll see how many "Exer-Units" it takes to achieve a result.
I also agree that a Heart Rate monitor is a very good investment. Calories burned is a guess, but getting an aerobic workout can be reduced to a science with a monitor, and that may be worth more than specific calorie burns. In fact it's very difficult to measure true progress in fitness without using a monitor.
In general what I've found is that my Polar Monitor gives me about 75-80% of the calories burned that LiveStrong does (which knows nothing about heart rate, etc) and the monitor gives me about 10-20% more credit than my iPhone's GPS biking/walking app does. So it's probably a great compromise between the total guesswork from devices that monitor no bodily functions.
But after all that - any exercise is good.
And I'm a "numbers-driven" guy so I like to see my progress measured in concrete, numerical terms - if you're like that, a monitor is definitely worth the investment. Monitoring my numbers if very motivational to me. But I'm weird.
Tom
Heaviest: 313/VSG Pre: 295/Surgery: 260/Maintenance target:190 - Recent: 195 (08/15/19)
1st 2015&2016 12-Hour Time Trial UMCA 50-59 Age Group
1st 2017 Race Across the West 4-Person 50-59 Age Group
4th 2019 Race Across America 8 Person Team








