The short answer
A 70 kg athlete racing HYROX at moderate intensity (MET 8.8) for 75 minutes burns around 770 calories, plus a real afterburn from the high-intensity stations. Lighter athletes burn less, a faster harder race burns more per minute. The chart and calculator below break it down by your exact weight, intensity, and time.
HYROX is a hybrid race: eight 1 km runs alternated with eight functional stations like the ski erg, sled push, sled pull, burpee broad jumps, rowing, farmers carry, sandbag lunges, and wall balls. That structure is why the calorie burn is unusually high. You get the sustained cost of endurance running plus the load of strength work, held together for an hour or more.
The science behind the numbers is the MET (metabolic equivalent). Each intensity has a MET value from the 2024 Adult Compendium of Physical Activities, and the formula is simple: calories = MET x your weight in kilograms x hours. We did that math for every common weight and intensity below.
How many calories does HYROX burn?
Pick the row for your session or race time and the column for your weight. Easy is steady station work around MET 7, moderate is race pace around MET 8.8, and fast is an all-out effort with hard runs and stations around MET 11. Because a HYROX race runs long, even the moderate column adds up fast: the total burn beats most gym sessions simply because you sustain the effort for 60 to 90 minutes.
Why your weight matters
HYROX loads your own bodyweight through runs, lunges, and burpees, and adds external load on sleds and carries. The heavier you are, the more energy each run leg and each station costs. That is why every row in the table rises as you move right across the weight columns. A 100 kg athlete burns close to twice the calories of a 55 kg athlete over the same race, with no extra effort, simply because there is more mass to move and more load to carry.
Why intensity changes the number
Pace is everything in HYROX. The difference between a survival shuffle and a competitive race is the difference between MET 7 and MET 11, and over a full hour that gap is enormous. Pushing the run legs and attacking the stations keeps your heart rate high the whole way through, which is what turns a long workout into a huge calorie day. The honest caveat: nobody holds MET 11 for 90 minutes. Use the fast column for hard training blocks and race pushes, and the moderate column for a realistic full-race average.
What about the afterburn (EPOC)?
HYROX earns a real afterburn, and it is worth being honest about the size. EPOC (excess post-exercise oxygen consumption) is the extra energy your body spends after a hard session restoring oxygen, clearing metabolites, and repairing muscle. Because HYROX stacks high-intensity stations on top of running, it generates more EPOC than a steady jog, so your metabolism stays elevated for hours afterward. Research puts the effect at roughly 6 to 15 percent on top of the session burn, so a 770 calorie race might total closer to 820 to 890 across the day. A genuine bonus, just a modest one, not the wild multipliers some marketing claims.
Calories burned vs calories eaten
Burning 770 calories in a race is only half the picture. What you do with that number is what changes your weight or your performance. Big training days spike appetite hard, and it is easy to eat back an entire race and then some. The useful move is to connect the burn to your intake for the day, which is exactly the gap a coach fills.
Log your HYROX training without the math
Reading a chart is one thing. Tracking every session through a race block, when you are wrecked from runs and stations, is where most people give up. With CalAlly you say "I did a 60 minute HYROX session" and it logs the work, estimates the burn, and folds it into your daily numbers. The built in AI nutrition coach then tells you what to eat to fuel the endurance and recover the strength side, so the calories you burn actually serve your goal. See what CalAlly is, the best calorie tracker for HYROX, or our best calorie tracker apps roundup.
