Leg Calories Moderate Intensity Calculator

How to Use This Tool

Select the activity that best matches your session from the dropdown. Enter your body weight in kilograms or pounds, then specify how long you exercised. The calculator converts everything to metric and hours automatically, so you can mix units freely. Press Calculate to see your estimated calorie burn, along with a breakdown showing the MET value, your weight in kilograms, and the time in hours.

For quick entry, use the preset buttons to fill in common weights and durations. The presets are just shortcuts — you can still type any value you like.

How It Works

This calculator uses the standard MET (Metabolic Equivalent of Task) method. One MET is the energy cost of sitting quietly, roughly 1 kcal per kilogram of body weight per hour. Moderate-intensity activities typically have MET values between 3 and 6. The formula is:

For example, brisk walking at 3.5 mph has a MET of about 3.5. If you weigh 70 kg and walk for 30 minutes (0.5 hours), the calculation is 3.5 × 70 × 0.5 = 122.5 kcal. This matches the widely used compendium of physical activities, which is maintained by researchers and used in fitness trackers and health studies.

Worked Examples

Tips & Best Practices

• Be honest about your intensity. If you're walking slowly, the MET is lower; if you're pushing hard, it's higher. This calculator assumes a steady moderate effort.
• Use your current body weight, not your goal weight. The estimate is based on the energy your body actually expends.
• For interval sessions, split your time into segments and add the results, or use the average MET if the effort is fairly consistent.
• Remember that this is an estimate. Individual metabolism, fitness level, and terrain all affect actual burn.

Factors Affecting Accuracy

The MET method gives a population average, so your personal result can vary by 10-20% or more. Factors include your muscle mass, age, gender, and how efficiently you move. For example, a trained cyclist may burn fewer calories at the same speed than a beginner, because their body is more efficient. Also, the MET values assume level ground and no wind resistance. If you're cycling uphill or walking on sand, your burn will be higher.

Frequently Asked Questions

Is this calculator suitable for gentle exercise? Yes, it's designed for moderate-intensity leg activities like brisk walking, easy cycling, and light strength work. For very low-intensity activities like slow stretching, see our stretching calorie calculator.

Can I use it for running? Running is usually vigorous intensity, so this tool isn't ideal. Try our running calories per mile calculator instead.

Why does the result show decimals? The formula produces fractional calories, and we round to one decimal for clarity. In practice, your body doesn't burn exactly 122.5 kcal — it's a useful estimate.

What is a MET? MET stands for Metabolic Equivalent of Task. It's a unit that describes how many times more energy an activity uses compared to resting. A MET of 4 means you're burning four times as much as when sitting still.

Reference Data

These values are based on the Compendium of Physical Activities, a widely used reference for exercise research.