Does anyone know if my fitness pal accurately calculates calories burned?

I don't think so. There are a few apps that you can sync with mfp. I use runtastic for a pedometer but that rounds out your pace to the .5. Mfp doesn't give you credit for weight lifting just for cardio.

I don't think so because heart rate factors in. I have a great one from New Balance that I got on sale from Target for like $40 bucks, but I think normally it's $70. They say the one around your chest is best, but I am super happy with my little wrist watch one. It does the time and then if you check your heart rate every few minutes, it'll give you a more accurate reading on your calories.

I also use runtatstic, I love it!! I use both. I actually just got home from a 30 minute walk and runtastic said almost 300 cals, but my heart rate monitor said almost 387, I think. I inputed the walk into myfitnesspal and it was a little higher (said 424). So I think it's close, but not great.

Just noticed how old this post is, but I'll add it anyway, as maybe other people are still wondering?

I think MyFitnessPal OVER-ESTIMATES calories burned.

For example.... 60 mins on elliptical....

MFP'S estimate.... 925 calories

Monitor on elliptical w/ my current weight.....630 calories

@HealthyNewMe Agreed. I was saying that too, but it might not have been clear.