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Nutrition

Food-to-Exercise Converter

See how long you need to exercise to burn off any food, personalized by bodyweight, across 8 common exercises.

Your numbers

Pick a food

Units
kcal
Body weight (kg)

Result

Fastest way to burn it: jump rope
20min
Walk
67min
Run
24min
Cycle
31min
Swim
40min

All eight exercises

  • Jump Ropemoderate, 100–120 skips/min: 11.8 MET, 434 kcal per 30 min20 min
  • Running6 mph (9.7 km/h), 10 min/mile: 9.8 MET, 360 kcal per 30 min24 min
  • Circuit trainingvigorous, minimal rest: 8 MET, 294 kcal per 30 min29 min
  • Cyclinggeneral: 7.5 MET, 276 kcal per 30 min31 min
  • Rowingmachine, moderate (100 W): 7 MET, 257 kcal per 30 min33 min
  • Swimminglaps, freestyle, moderate: 5.8 MET, 213 kcal per 30 min40 min
  • Walking3.0 mph (4.8 km/h), level: 3.5 MET, 129 kcal per 30 min1h 6m
  • Yogahatha: 2.5 MET, 92 kcal per 30 min1h 33m

Exercise duration

Minutes needed to burn off the calories — sorted fastest first.

Jump Rope
20 min
Running
24 min
Circuit training
29 min
Cycling
31 min
Rowing
33 min
Swimming
40 min
Walking
1h 6m
Yoga
1h 33m

Education, not medical advice. The result comes only from the published formula and your inputs. How we check our formulas.

How to use it

  1. Enter a food and its calorie count to see the exercise duration required to burn that many calories. Use this to build intuition about calorie density — not to plan compensatory exercise.
  2. The output demonstrates a key insight: it is far easier to not consume 500 calories than to burn them. Not eating one croissant saves approximately the same calories as a 45-minute jog.
  3. Identify which foods have the highest calorie-to-satiety ratio for you — these are the most valuable foods to reduce. You do not need to eliminate them; simply reducing frequency has outsized impact.
  4. Do not use these burn estimates for exact calorie compensation. Individual calorie burn varies ±20–30% based on metabolic rate, fitness level, and effort intensity.
  5. Foods with the best satiety-per-calorie ratio for most people: high-protein foods (eggs, Greek yogurt, chicken), high-fiber foods (vegetables, legumes), and high-water foods (fruits, soups). These provide more satiety per calorie than processed alternatives.

Questions people usually ask

How accurate is the calorie burn estimate?

It uses the standard MET formula which gives a reasonable estimate, but actual burn depends on fitness level, effort, and individual metabolism.

Why does body weight matter?

Heavier people burn more calories per minute at the same exercise intensity because more energy is needed to move more mass.

What are MET values?

MET (Metabolic Equivalent of Task) measures exercise intensity as a multiple of resting metabolic rate. Walking is about 3.5 MET, running is about 9.8 MET.

Should I exercise just to burn off food?

Exercise has many benefits beyond calorie burn. This tool is meant for awareness and perspective, not to justify or punish eating choices.

Is this tool free and private to use?

Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.

Do these tools replace medical guidance?

No. These outputs are general fitness estimates — not medical advice.

  • Formula Food-to-Exercise Conversion Formula

    Food-to-exercise: minutes_to_burn = food_kcal / (MET × mass_kg × 0.0175). MET values from Ainsworth Compendium 2011. Walk 3.5, run 9.8, cycle moderate 7.5.

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Use it from code

The same calculation as a JavaScript module you can import. It runs where you import it, with no request, key or rate limit.

import { compute } from "https://aifithub.io/engines/food-to-exercise-converter.js";

Input and output contract, TypeScript types and the guide for agents.