HIIT Calories Per Hour By Body Weight, Intensity and Protocol
How many calories does HIIT burn per hour? Full tables by body weight and protocol. Covers moderate HIIT, vigorous intervals, Tabata, sprint intervals, and HIIT vs running per-hour comparison.
HIIT burns between 378 and 1,001 calories per hour depending on body weight and intensity level. A 154 lb (70 kg) person at moderate HIIT (MET 7.0) burns approximately 490 calories per hour. At vigorous intensity (MET 11.0), the same person burns approximately 770 calories per hour. These figures come from the 2024 Adult Compendium of Physical Activities.
The HIIT calorie calculator applies these MET values to your weight and session length for a personalised estimate. The HIIT calories hub links all session-length pages, protocol comparisons, and the EPOC science guide in one cluster.
Per-hour calorie rates are most useful for comparing HIIT against other cardio formats on equal time and for projecting output during longer sessions. There is one important caveat: most people cannot sustain genuine vigorous HIIT intensity for a full hour. Sessions longer than 30 minutes at true MET 11.0 effort typically involve a drop in work interval quality that reduces effective output. The per-hour figures below represent what would be produced if intensity were held constant.
HIIT Calories Per Hour by Body Weight
The MET formula scales with body weight. Every additional kilogram produces proportionally more calories per hour at the same protocol. The hourly output from MET 7.0 to MET 11.0 differs by 57% at any body weight.
HIIT Calories Per Hour by Body Weight and Intensity
Body Weight | Moderate HIIT (MET 7.0) | Vigorous HIIT (MET 11.0) | Sprint Intervals (MET 14.0) |
|---|---|---|---|
120 lb (54 kg) | 378 kcal | 594 kcal | 756 kcal |
130 lb (59 kg) | 413 kcal | 649 kcal | 826 kcal |
140 lb (64 kg) | 448 kcal | 704 kcal | 896 kcal |
150 lb (68 kg) | 476 kcal | 748 kcal | 952 kcal |
154 lb (70 kg) | 490 kcal | 770 kcal | 980 kcal |
165 lb (75 kg) | 525 kcal | 825 kcal | 1,050 kcal |
180 lb (82 kg) | 574 kcal | 902 kcal | 1,148 kcal |
185 lb (84 kg) | 588 kcal | 924 kcal | 1,176 kcal |
200 lb (91 kg) | 637 kcal | 1,001 kcal | 1,274 kcal |
215 lb (97 kg) | 679 kcal | 1,067 kcal | 1,358 kcal |
Source: 2024 Adult Compendium of Physical Activities. Sprint intervals use MET 14.0 running proxy.
A 200 lb person doing vigorous HIIT breaks 1,000 calories per hour. Sprint interval training at MET 14.0 for the same person reaches 1,274 calories per hour. These are the highest sustained calorie burn rates available from any common cardio format.
HIIT Calories Per Minute by Intensity
Per-minute rates are useful for estimating the output of any custom session length. At MET 7.0, a 154 lb person burns approximately 8.2 calories per minute. At MET 11.0, the rate rises to approximately 12.8 calories per minute.
HIIT Calories Per Minute (154 lb / 70 kg)
Protocol | MET | Calories Per Minute |
|---|---|---|
Moderate HIIT | 7.0 | 8.2 kcal/min |
Vigorous calisthenics HIIT | 7.5 | 8.8 kcal/min |
Vigorous HIIT / Tabata | 11.0 | 12.8 kcal/min |
Sprint intervals | 14.0 | 16.3 kcal/min |
To estimate calories for any session length: multiply the per-minute rate by the number of active minutes. A 25-minute vigorous HIIT session at 154 lb burns approximately 12.8 x 25 = 320 calories.
HIIT Calories Per Hour vs Running
Running and HIIT are the two most common comparisons in high-intensity cardio research. Per hour, the comparison depends entirely on the running speed and HIIT intensity.
HIIT vs Running Calories Per Hour (154 lb / 70 kg)
Activity | MET | Calories Per Hour |
|---|---|---|
Moderate running (6 mph) | 9.8 | 686 kcal |
Moderate HIIT | 7.0 | 490 kcal |
Running (7 mph) | 11.5 | 805 kcal |
Vigorous HIIT / Tabata | 11.0 | 770 kcal |
Running (8 mph) | 13.5 | 945 kcal |
Sprint intervals | 14.0 | 980 kcal |
2024 Adult Compendium of Physical Activities.
At moderate intensity, running (MET 9.8) produces more calories per hour than moderate HIIT (MET 7.0). At vigorous intensity, HIIT at MET 11.0 nearly matches running at 7 mph (MET 11.5). Sprint intervals at MET 14.0 exceed moderate running but fall just short of running at 8 mph (MET 13.5).
The critical contextual factor: running at 7 to 8 mph must also be sustained for a full hour. Most recreational runners cannot maintain 7+ mph for 60 minutes. Most people also cannot sustain vigorous HIIT at MET 11.0 for 60 minutes. In practical 20 to 30-minute sessions, vigorous HIIT produces more calories per minute than moderate running.
How Many Calories Does HIIT Burn Per Hour at Different Protocols?
Protocol choice changes the effective MET within what is generically called "HIIT." This directly affects per-hour calorie output beyond the body weight variable.
Per-Hour Calorie Output by Protocol (154 lb / 70 kg)
Protocol | Description | MET | Calories Per Hour |
|---|---|---|---|
Moderate HIIT circuit | Circuit with manageable work-to-rest | 7.0 | 490 kcal |
AMRAP (vigorous) | As many rounds as possible, vigorous pace | 8.0 to 9.0 | 560 to 630 kcal |
MetCon (metabolic conditioning) | Compound movements, minimal rest | 8.5 | 595 kcal |
Tabata | 20s max effort / 10s rest, 8 rounds per block | 11.0 | 770 kcal |
Vigorous HIIT | Near-maximal work intervals | 11.0 | 770 kcal |
Sprint intervals | All-out sprints, full recovery | 14.0 | 980 kcal |
Protocol-specific MET values from 2024 Adult Compendium and traincalc.com Compendium data.
The range from moderate HIIT circuit (490 kcal/hr) to sprint intervals (980 kcal/hr) is nearly 2x. Protocol selection and honest intensity effort explain most of the variation people experience in their HIIT calorie output.
HIIT Calories Per Hour at Common Body Weights
Three reference body weights cover most adult ranges for per-hour HIIT calorie planning.
HIIT Calories Per Hour: Reference Table for Three Common Weights
For a 150 lb (68 kg) person:
Protocol | Calories Per Hour | Per 30 Min | Per 20 Min |
|---|---|---|---|
Moderate HIIT | 476 kcal | 238 kcal | 158 kcal |
Vigorous HIIT | 748 kcal | 374 kcal | 249 kcal |
Sprint intervals | 952 kcal | 476 kcal | 317 kcal |
For a 175 lb (79 kg) person:
Protocol | Calories Per Hour | Per 30 Min | Per 20 Min |
|---|---|---|---|
Moderate HIIT | 553 kcal | 277 kcal | 184 kcal |
Vigorous HIIT | 869 kcal | 435 kcal | 290 kcal |
Sprint intervals | 1,106 kcal | 553 kcal | 369 kcal |
For a 200 lb (91 kg) person:
Protocol | Calories Per Hour | Per 30 Min | Per 20 Min |
|---|---|---|---|
Moderate HIIT | 637 kcal | 319 kcal | 212 kcal |
Vigorous HIIT | 1,001 kcal | 501 kcal | 334 kcal |
Sprint intervals | 1,274 kcal | 637 kcal | 425 kcal |
Why Are Most HIIT Sessions Shorter Than 1 Hour?
The per-hour MET value for vigorous HIIT assumes the intensity is sustained throughout. In practice, the research indicates this is not realistic beyond 30 minutes for most people.
Research cited by traincalc.com notes that vigorous HIIT sessions beyond 30 minutes typically involve declining work interval quality. As the body accumulates metabolic fatigue, the nervous system output drops and subsequent work intervals are performed at effectively lower intensity. The session may still feel hard, but the actual mechanical and metabolic demand falls below MET 11.0.
The practical implication for per-hour estimates:
A 30-minute vigorous HIIT session at consistent MET 11.0 burns approximately 385 calories
A 60-minute session where intensity drops to moderate after 30 minutes burns approximately 385 + 245 = 630 calories, not 770
The honest per-hour rate for a sustained vigorous HIIT effort with quality intact is approximately 770 kcal/hr for a 70 kg person, achievable in short burst sessions but not typical for a full hour
HIIT Per Hour and Weight Loss Planning
Per-hour calorie rates allow accurate projection of weekly HIIT calorie output for weight loss planning.
Weekly HIIT Calorie Output at Different Frequencies (154 lb / 70 kg)
Weekly Plan | Protocol | Per Session | Weekly Calories (incl. EPOC) |
|---|---|---|---|
2x 20 min vigorous | MET 11.0 | ~280 kcal | ~560 kcal |
3x 30 min vigorous | MET 11.0 | ~415 kcal | ~1,245 kcal |
4x 30 min moderate | MET 7.0 | ~260 kcal | ~1,040 kcal |
3x 20 min sprint | MET 14.0 | ~340 kcal | ~1,020 kcal |
Most exercise professionals cap HIIT frequency at three to four sessions per week to allow adequate recovery. Daily vigorous HIIT degrades work interval quality over time, effectively lowering the per-session MET and reducing total weekly calorie output compared to fewer higher-quality sessions.
To place HIIT output within your total daily energy balance, the TDEE calculator calculates your personalised maintenance calories. The calories burned calculator covers all exercise types for mixed training weeks. The main calories burned guide shows how HIIT per-hour output compares to swimming, cycling, rowing, and other cardio formats.
For shorter session planning, the 20-minute HIIT calories page and 30-minute HIIT calories page provide full weight tables for those session lengths. The HIIT EPOC afterburn page covers the post-session calorie contribution that adds to these per-hour figures.
How Do You Use Per-Hour HIIT Calorie Rates for Training Planning?
Per-hour calorie rates are most practical for three planning purposes:
Comparing Cardio Formats Per-hour rates put HIIT on the same scale as running, cycling, swimming, and other steady-state cardio. A 154 lb person burns 770 kcal/hr at vigorous HIIT versus 686 kcal/hr running at 6 mph. Per hour, vigorous HIIT edges out moderate running by approximately 12%.
Projecting Output at Custom Session Lengths Multiply the per-minute rate by actual session minutes. At vigorous HIIT (MET 11.0) for a 70 kg person: 12.8 kcal/min x 25 minutes = 320 calories for a 25-minute session.
Setting Weekly Calorie Targets Per-hour rates combined with session frequency and actual duration give accurate weekly calorie projections. Three 25-minute vigorous HIIT sessions per week at 70 kg produces approximately 3 x 320 = 960 calories per week from the sessions plus EPOC.
HIIT Calories Per Hour vs Other Cardio (Full Comparison)
Calories Per Hour by Activity (154 lb / 70 kg)
Activity | MET | Calories Per Hour |
|---|---|---|
Brisk walking | 4.3 | 301 kcal |
Moderate cycling | 8.0 | 560 kcal |
Moderate HIIT | 7.0 | 490 kcal |
Moderate running (6 mph) | 9.8 | 686 kcal |
Vigorous HIIT | 11.0 | 770 kcal |
Running (7 mph) | 11.5 | 805 kcal |
Sprint intervals | 14.0 | 980 kcal |
Running (8 mph) | 13.5 | 945 kcal |
2024 Adult Compendium of Physical Activities.
Vigorous HIIT (770 kcal/hr) sits between moderate and fast running in per-hour calorie output. The practical advantage of HIIT is that it produces near-running calorie rates while being lower-impact and requiring less joint stress than sustained high-speed running.
For complete session-level data at 20 and 30-minute lengths, see the 20-minute HIIT calories page and the 30-minute HIIT calories page. For the science behind how post-session EPOC adds to these per-hour figures, see the HIIT EPOC afterburn page.
Frequently Asked Questions About HIIT Calories Per Hour
How Many Calories Does HIIT Burn Per Hour?
HIIT burns between 378 and 1,067 calories per hour depending on body weight and intensity. A 154 lb (70 kg) person at moderate HIIT (MET 7.0) burns approximately 490 calories per hour. At vigorous HIIT (MET 11.0), the same person burns approximately 770 calories per hour. Sprint intervals at MET 14.0 produce approximately 980 calories per hour for the same body weight.
What Is the HIIT MET Value Per Hour?
The 2024 Adult Compendium of Physical Activities assigns MET 7.0 to moderate HIIT circuit training and MET 11.0 to vigorous interval training and Tabata protocols. Sprint interval training uses a running-based proxy MET of approximately 14.0. MET represents the energy cost of an activity relative to resting metabolism, where 1 MET equals approximately 1 kcal per kg per hour.
Does HIIT Burn More Calories Per Hour Than Running?
At moderate intensity, running (MET 9.8, 686 kcal/hr for 70 kg) burns more calories per hour than moderate HIIT (MET 7.0, 490 kcal/hr). At vigorous intensity, HIIT (MET 11.0, 770 kcal/hr) nearly matches running at 7 mph (MET 11.5, 805 kcal/hr) for the same body weight. Sprint intervals (MET 14.0) exceed moderate running but fall slightly short of running at 8 mph (MET 13.5).
How Many Calories Does HIIT Burn Per Minute?
At moderate HIIT (MET 7.0), a 154 lb (70 kg) person burns approximately 8.2 calories per minute. At vigorous HIIT (MET 11.0), the rate rises to approximately 12.8 calories per minute. Sprint intervals at MET 14.0 produce approximately 16.3 calories per minute for the same body weight. These per-minute rates apply to active work time and do not account for rest interval periods within a session.