Choose an activity, enter your body weight and workout duration, and get a quick MET-based calorie estimate.
Calorie expenditure is calculated using the scientifically validated Metabolic Equivalent of Task (MET) framework established by the Compendium of Physical Activities.
1 MET represents the energy cost of sitting quietly at rest, which equates to roughly 1 kcal per kilogram of body weight per hour (or 3.5 mL of oxygen consumed per kilogram per minute).
| Exercise Type | Intensity Level | MET Score | Est. Burn (75kg / 1hr) |
|---|---|---|---|
| Jump Rope | Fast Cadence (>120 rpm) | 11.8 – 12.0 | ~929 kcal |
| Running (6 mph) | 10 min/mile pace | 9.8 | ~772 kcal |
| HIIT & Tabata | Maximal Intervals | 9.0 – 10.0 | ~709 kcal |
| Stationary Cycling | Moderate Resistance | 7.0 | ~551 kcal |
| Weight Training | Heavy Compound Sets | 6.0 | ~473 kcal |
| Brisk Walking | 3.5 – 4.0 mph | 4.3 | ~339 kcal |
| Yoga & Mobility | Hatha / Vinyasa | 2.5 – 3.0 | ~216 kcal |
Online calories burned calculators provide standardized baseline estimates. Five biological factors determine whether your true energy expenditure is higher or lower:
Intense training such as HIIT, sprinting, and heavy resistance training triggers an oxygen debt that elevates baseline caloric expenditure for 12 to 24 hours after the workout has concluded.
Skeletal muscle is metabolically active tissue, requiring approximately three times more energy per pound to sustain than adipose fat tissue, raising your active and resting burn rate.
A 60-minute weightlifting session often includes 15–20 minutes of actual under-load lifting and 40 minutes of recovery. High-density supersets burn significantly more than long-rest strength singles.
Beginners have uncoordinated motor patterns that waste energy, burning more calories for the same work. As technique refines, movement economy improves, reducing mechanical friction.
Exercising in hot conditions or at high Rate of Perceived Exertion (RPE 8–10) accelerates cardiac output and sweat response, marginally increasing acute metabolic rate.
When dieting for fat loss, avoid consuming every calorie calculated from your workout. Use this calculator to track relative expenditure trends rather than micro-managing daily meals.
Clear answers on how energy expenditure is determined, fitness trackers accuracy, and workout calorie burn.
This calculator uses standard Metabolic Equivalent of Task (MET) coefficients from exercise physiology research. It provides a reliable baseline estimate for individuals of average body composition within ±10% to 15% of clinical metabolic cart measurements.
High-cadence jump roping, sprint intervals, and all-out Air Bike / rowing sprints have the highest MET ratings (10.0 to 12.0), burning approximately 350 to 450 calories in 30 minutes for a 75 kg individual.
Yes. Resistance training triggers protein remodeling and micro-trauma repair, maintaining an elevated metabolic burn (EPOC) for 24 to 48 hours, whereas steady-state cardio burning ceases almost immediately after stopping.
Moving a larger physical mass against gravity requires more kinetic energy and muscle force. A 90 kg individual naturally burns roughly 20% more calories walking 1 mile than a 75 kg individual.
Fitness smartwatches utilize photoplethysmography (optical heart rate) and accelerometer data. While good at tracking relative cardiovascular spikes, studies show consumer wrist wearables can vary by up to 20–30% in absolute calorie accuracy.
For the most accurate result, calculate the duration of your main training block at its appropriate MET level, and calculate gentle walking or stretching separately at 2.5 to 3.0 METs.
Yes! Identify the style of your YouTube workout (HIIT, Yoga, Bodyweight circuit, or Strength) and enter the total active video duration.
Use our free Workout Routine Builder or Free Workout Plan Generator to design weekly schedules, set rest intervals, and organize exercises with zero sign-up required.
Estimate your one-rep max and training percentages.
Estimate workout energy expenditure by activity.
Calculate total sets × reps × weight.
Run custom work and rest intervals online.
Turn any workout video into a timestamped, shareable training timer.