Fat Intake Calculator
Enter weight, activity level and goal to estimate daily fat intake (grams).
Input Data
Results
At a glance:Daily calories ~ weight(kg) * activity factor (sedentary 25 / light 30 / moderate 33 / active 37 / very active 40 kcal/kg); weight loss x0.8, gain x1.15. Fat = calories * 25% / 9 (9 kcal per gram).
Formula
calories = weightKg * activityFactor * goalAdj.
fatG = calories * 0.25 / 9.
How to Use
- Enter weight, activity level and goal.
- Get daily calories and recommended fat grams.
Case Studies
65kg / moderate / maintain
calories = 65 * 33 = 2145 kcal; fatG = 2145*0.25/9 ~ 60 g.
FAQ
Why 25% of calories?
General guidelines suggest fat make up 20-35% of calories; this tool uses 25%.
Choose good fats or just limit total?
Within the total, prefer unsaturated fats (nuts, fish oil, olive oil) and limit saturated and trans fats.
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References
Content reviewed by the Calculatorism editorial team. Results are for reference only; please refer to the relevant authorities for the official figures.