Discrepancy between the MyFitnessPal and other calculators

Those "light/moderate/etc" tags are completely hit and miss - I wouldn't trust any of them. I track my own intake, my own exercise, and work out my own BMR/TDEE from my own results.

Alternately, just pick one, stick with it for a few weeks, and see if the results match expectations. If not, adjust accordingly.

Maybe the 2200 + the calories you burn doing MMA and weight lifting. That would probably be about 2800 a day.

Your BMR is only the amount of calories you need to survive daily, with NO activity factored in.
Office work would be sedentary, exercise on top of that.
I use the following to calculate my BMR - and it's pretty consistent with most other calculators I've used:

http://www.bmi-calculator.net/bmr-calculator/

See what that says, if you would please.

Also, what are your goals - to bulk, maintain?

MFP doesn't account for exercise calories in the figure it gives you, because it expects you to log your exercise in and eat them back.

I work at a desk job, do Krav 3 to 4.5 hours a week and other things mixed in. I used several calculators to get an average for my stats as a couch potato then eat back all to 75% of my workout calories. For me a Krav class can be intense crazy and burn lots of calories or it may be more technical slow it down with less calories burned. With variations in expenditures from week to week I find it easier to control by using the MFP eat back your calories method. I did bump my calories up a bit from MFP based on the averages between the different calculators and adjusted them once to get to a spot that I find works for me. My range was from 1330 to 1740 between the different sites and I started at 1470 then dropped to 1430 as my base but with exercise eat around 1500 to 2500 calories a day depending on what I am doing. I wanted very slow and steady weight drop and that is what I am getting.

On a side note, when I started Krav I had a very young female student tell me bruises are badges of honor. I keep trying to tell myself that the very big bruise on my inside knee is a badge of honor. I also keep explaining to myself I am paying for those bruises so enjoy them. Some how the pain is overriding the pride in that brusie.

I'd start gradually increasing calories. Stop when you stop losing/start gaining.

I suspect though that the discrepancy is that MFP is still expecting you to eat back your exercise calories.

... For me a Krav class can be intense crazy and burn lots of calories or it may be more technical slow it down with less calories burned. With variations in expenditures from week to week I find it easier to control by using the MFP eat back your calories method.
...

This is precisely why I find Krav sessions hard to quantify for calorie expedenture. Some are technical and almost no sweating. In some
we mix in MMA sparring and it's definitely on the level of running pretty fast for an hour, so tons of calories.

On a side note, when I started Krav I had a very young female student tell me bruises are badges of honor. I keep trying to tell myself that the very big bruise on my inside knee is a badge of honor. I also keep explaining to myself I am paying for those bruises so enjoy them. Some how the pain is overriding the pride in that brusie.

Haha, badges of honor. What I can tell you for sure, though, is that it gets better with time. It's amazing but after some time the same
hits just won't bruise you, or the bruises go away quickly. The body adapt. For women it may take longer (skin more sensitive, I guess), but
that happens too.

Thanks for your advice.

I count the calories after class as marital arts, aerobics, and slow walking depending on the effort. I sometimes count all three as part of a class. Of course I drop minutes off for the instructor talking.

The bruises do get better. It was just a new location and my partner was 6ft4 250lbs, taking the kicks when I did not get my knee up high enough was what caused the issue. I am 5ft2 and 150lbs so he had a lot on me. Some poeple think I am crazy and just do not get that I have fun doing this.

Also stationary here. MFP had me at 1460 to lose a lb a week. When I went to Maintanance, it went up to 1960. I gave it time, but lost another 5 lbs. I upped it to 2160 as base calories, and I am holding pretty steady now. Eating it all isn't the easiest thing without going over on sodium, so it might be water retention. One fluid pill, and 3 hours of going to the bathroom every 10 minutes, and I could be down another 5 lbs, lol.

If you place your activity level in MFP, yes - it does change your calorie goal.
If you log your exersice, yes - it is tracked by subtracting those calories that you've burned, from your food intake. But, you have to add your exercise in.

Also, the activity level that MFP suggests, it does NOT include your exercise - only the estimated activity you get daily before factoring in exercise.

I set my level at lightly active, although some days I'm more "active" than others. I always log in my exercise, since it usually makes my hungrier - especially if I'm weight lifting.

Becase MFP doesn't add in your calories -- you are expected to eat those back on top of the calories you are given as a base. The other equation takes your calorie burn for the week (according to the activity level you give it) and spreads them out on top of the calories it gives you over the course of the week. With the higher number you would not eat back the exercise calories you burn as they are already factored into the number.

Agree with the above, it's probably this. MFP doesn't change your calories when you change your activity level, but the online ones do. You need to add it as an exercise to the day.