Calories Burned Calculator

Did you crush a HIIT workout or just aggressively nap? Knowing how many calories you actually burned helps you fuel your body without guessing.

What this calculator does

• Activity Tracking: Calculates burn for running, cycling, swimming, and even sleeping.
• Personalized: Adjusts for your specific weight (heavier people burn more).
• Reality Check: See if that cookie was "earned" (Spoiler: It probably wasn't).

The Formula

We use METs (Metabolic Equivalent of Task). $\text{Calories} = \text{MET} \times \text{Weight (kg)} \times \text{Hours}$

• Sitting: 1 MET.
• Walking: 3 METs.
• Running (6mph): 10 METs.

Unlike your treadmill display, here's what that means

Gym machines lie. They often overestimate calorie burn by 20-30% to make you feel good. Our calculator uses scientific MET values to give you the harsh truth.

Example Calculation

You: 154 lbs (70 kg). Activity: Jogging (7 METs) for 30 mins (0.5 hours).

1. Mass: 70 kg.
2. Intensity: 7 METs.
3. Time: 0.5.
4. Burn: $7 \times 70 \times 0.5 = 245 \text{ Calories}$.

Did You Know? 💡

• Brain Power: Your brain burns about 20% of your daily calories just by thinking. Studying for finals is technically a workout.
• Fidgeting: People who tap their feet or pace around can burn up to 350 extra calories a day. It's called NEAT (Non-Exercise Activity Thermogenesis).
• Cold Water: Swimming in cold water burns more calories because your body has to work overtime just to stay warm.

Expert Insight

Eating Back Calories: Should you eat the calories you burned?

• Weight Loss: No. Consider them a bonus deficit.
• Muscle Gain: Yes. You need the fuel to recover.
• Reality: Most people underestimate what they eat and overestimate what they burn. Be conservative.

Why this matters

To lose 1 lb of fat, you generally need a deficit of ~3,500 calories. Tracking your output helps you see if you're actually in a deficit or just spinning your wheels.

Frequently Asked Questions

Does sweating mean I'm burning more? No. Sweat is just your cooling system. You can burn 500 calories on a cold run without sweating a drop, or 0 calories sitting in a sauna while drenched.

Which exercise burns the most? High intensity mostly. Jumping rope and running fast (>8mph) are the kings of calorie burning.

Does muscle burn more calories than fat? Yes! Muscle is "metabolically expensive." Having more muscle raises your BMR, meaning you burn more calories just watching Netflix.

Related Calculators

• BMR Calculator: Calories you burn doing nothing.
• BMI Calculator: Check your stats.

Disclaimer: These are estimates. Your metabolism is unique.