Dietary Fat Calculator
Turn calorie goals and fat percent into grams per day.
Use the calculator below, then review the formula, a numeric example, and the reference table to understand how the fat intake result is produced.
Educational tool only. It does not replace advice from a licensed clinician, dietitian, or exercise physiologist.
Calculator inputs
Result
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What is this calculator?
Turn calorie goals and fat percent into grams per day. The formula, a worked example, and a reference table are below. Results are for education only, not medical advice.
How it works
Fat grams = (daily calories × fat percent ÷ 100) ÷ 9 kcal/g.
Example
2000 kcal, 30% fat → (2000×0.3)/9 ≈ 67 g/day.
Reference Table
| Value | Meaning |
|---|---|
| Unsaturated | Olive, nuts, fish |
| Saturated | Moderation per guidelines |
| Essential fats | Omega-3 sources |
FAQ
Very low fat?
May hinder absorption of fat-soluble vitamins for some diets.
Keto?
High fat is a medical diet for some; not a casual experiment.
Cholesterol?
Dietary cholesterol interacts with overall pattern more than alone.
Cooking oils?
Smoke points matter for high-heat cooking safety.