Calorie ↔ Exercise Time Calculator
How long do you need to run to burn off the ramen, chicken, or pork belly you just ate? MET-based instant conversion from food to exercise minutes.
How to Use
Enter your body weight in kg. Energy expenditure scales with weight, so an accurate value matters (default 60 kg).
Choose from 60+ common Korean foods, or enter a calorie value directly. Picking multiple foods accumulates the total.
15 activities (walking, running, cycling, swimming, jump rope, etc.). MET-based per-minute burn is computed, and the time needed to offset the calories is shown.
FAQ
How is exercise calorie computed?
kcal = MET × weight(kg) × hours. MET is a metabolic-equivalent value; 1 MET ≈ 1 kcal/kg/hour at rest. e.g., running 8 MET × 60 kg × 1 hr = 480 kcal/hr = 8 kcal/min.
Source for MET values?
The ACSM Compendium of Physical Activities (US). Average values across studies are used. Individual variation (age, muscle mass, intensity) can cause ±20%.
Source for food calories?
Korea's RDA and Ministry of Food & Drug Safety databases, plus average market values for packaged products. Same food can vary ±15% by recipe/ingredients; treat as a reference.
Do I have to enter weight?
Recommended. The same 30-min run burns ~33% more for 80 kg than 60 kg. Accurate weight gives a personalized estimate.
Can I select multiple foods?
Yes. Multiple items accumulate the total calories, and the exercise time needed to offset them updates automatically. Useful for "burn off everything I ate today" planning.
My food is not in the list
Use the "Custom calories" mode and enter the kcal from the package nutrition label.
Is my input sent to a server?
No. All computation runs in your browser; inputs are never sent over the network.
