I need to provide my own RMR. The estimations are terrible. My height, age, weight, etc are not going to give realistic results. Even all the online tools just guess my RMR incorrectly. Look at who they based those models on. Not normal. I've done a wide variety of RMR tests with one so thorough it took an hour and cost $1500. My last 3 different RMR tests, done 2 months ago, were in the 2800-2900 range. Garmin says I'm around 1980. Very wrong. If you sit in a closed room with me, from several real experiences, you will be sweating from the heat I produce.