TRX calories by weight & duration

Body weight15 min30 min45 min60 min
125 lb71142213283
150 lb85170255340
175 lb99198298397
200 lb113227340454
225 lb128255383510

The ~352 calories per hour figure is an estimate for a 155 lb person and your actual burn will differ based on your weight, fitness level, and how hard you push in class. Log your TRX sessions in the Mariposas app to track your numbers over time and see how your output changes as you get stronger.

Calculated as MET (5) × body weight (kg) × hours. How this works.

What to expect in a trx class

A first session usually opens with the instructor walking you through strap adjustment and body angle, because how far you stand from the anchor point is how you dial resistance up or down. From there, expect a circuit of foundational movements like rows, chest presses, squats, and planks, all explained in enough detail that a complete beginner can follow along. The pace is moderate and coaches typically cue regressions (easier angles) right alongside the standard version, so you are not left guessing. Your forearms and core will fatigue before your legs do, which surprises most people the first time.

Tips for your first trx class

  • Stand closer to the anchor point to make any exercise easier. The strap length stays the same; your body angle is the real resistance knob, and standing more upright takes load off immediately.
  • Do not death-grip the handles. A tight white-knuckle grip accelerates forearm fatigue and throws off your shoulder mechanics. Hold firmly but think about pressing or pulling through your whole arm, not squeezing for dear life.
  • Check that the straps are even before you start. Uneven strap length means one arm is working at a different angle, and after a few reps that asymmetry compounds into real strain on the shoulder.
  • Ask the instructor to watch your plank position on the first suspended plank you attempt. Hips sagging or piking up is the single most common error, and correcting it early means the rest of the core work in class actually hits the right muscles.

What affects how many calories trx burns

The 352 calorie figure is based on a 155 lb person working at the MET value for suspension training, and it scales directly with body weight, so a heavier person burns more and a lighter person burns less at the same effort level. How aggressively you lean into the straps and how quickly you move between exercises matters a lot. A class that keeps rest short and chains upper and lower body moves back-to-back will push the burn noticeably higher than one that lingers on rest and uses shallow angles throughout.

Three things move your number most: body weight (a heavier body burns more for the same activity, that's why the table runs from 125 to 225 lb), duration (calories scale with time), and intensity. A trx you push hard burns more than an easy one, because effort is what the MET value of 5 represents, an average for this activity. Your fitness level and how much you rest between efforts shift it too, so treat these as a solid estimate rather than an exact count.

How we calculate trx calories

Every number here uses the standard energy-expenditure formula: calories ≈ MET × body weight (kg) × time (hours). The MET value of 5 for trx comes from the published Compendium of Physical Activities, the same reference researchers and fitness trackers use. We convert your weight to kilograms and multiply through, no fudge factors. See our methodology for the full formula and sources.

⚕️ A general-information estimate from population-level formulas, a starting point, not a precise measurement and not medical advice.

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