Excercise calculator

What type of workout is it? MFP may have something similar to the workout (aerobics, step, yoga, zumba for examples) and you can select the type of exercise and input the minutes that you did the workout. Keep in mind that MFP typically exaggerates your exercise calories, and most people will only eat back a 1/3 to a 1/2 of those calories. I typically adjust their estimates by decreasing by half to avoid eating calories that I did not earn.