FOODMANAC · KNOW YOUR NUMBERS
TDEE Calculator
Estimate total daily energy expenditure by combining resting energy with a selected activity multiplier.
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YOUR ESTIMATE
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Enter your measurements to see the calculation and its assumptions.
Connect your numbers to real food
Search Foodmanac’s existing food database. Choose the correct preparation and compare its recorded nutrient basis with a portion you actually eat.
How to use this tdee calculator
Activity is more than scheduled workouts: standing, walking and physical work also contribute. The multiplier is a rough assumption. If reliable intake and weight-trend data disagree with the estimate, review the inputs and seek tailored guidance.
Formula and assumptions
TDEE = simplified Mifflin–St Jeor resting kcal × activity factor: 1.2, 1.375, 1.55, 1.725 or 1.9.
Example calculation
A resting estimate of 1,648.75 kcal multiplied by 1.55 gives 2,555.56 kcal/day, displayed as about 2,554.
Frequently asked questions
Is a fitness watch more accurate?
Neither a watch nor this equation is guaranteed to measure your actual expenditure accurately.
Should I select very active because I exercise once a week?
No. Choose the category that best reflects your overall typical activity.
Sources and methodology
Source-backed equations are distinguished from Foodmanac planning presets. No result is an exact measurement or a medical prescription. Content version: 1.0.0.
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