Fat Intake Calculator
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44–78 g of fat a day for 2,000 kcal, with saturated fat up to 22 g (10% of calories).
The Dietary Guidelines suggest getting fats from whole foods such as meat, poultry, seafood, eggs, dairy, nuts, seeds, olives and avocados, and say significantly limiting highly processed foods will help keep saturated fat under 10% of calories.
This is an estimate from a published formula, not medical advice. Talk to a doctor or registered dietitian about your own situation.
How to use the fat intake calculator
- Enter your daily calories, or estimate them first with the calorie calculator.
- Optionally enter the share of calories you get from fat to convert it into grams.
- Compare the saturated-fat limit with the "saturated fat" line on food labels, which is given in grams.
Fat intake formula
Total fat range = 20% to 35% of calories
Saturated fat limit (g) = calories × 0.10 ÷ 9
Fat provides about 9 kcal per gram, so grams of fat are calories from fat divided by 9. The total-fat range is the Acceptable Macronutrient Distribution Range for adults set by the Institute of Medicine (20–35% of calories). The saturated-fat limit comes from the current edition of the Dietary Guidelines for Americans, 2025–2030, published by the USDA and HHS in January 2026, which says: "In general, saturated fat consumption should not exceed 10% of total daily calories." The previous 2020–2025 edition used the same 10% limit.
Worked example
At 2,500 kcal a day, 20% of calories from fat is 2,500 × 0.20 ÷ 9 = 56 g and 35% is 2,500 × 0.35 ÷ 9 = 97 g. Saturated fat should stay at or under 2,500 × 0.10 ÷ 9 = 28 g a day. Most of the remaining fat would ideally come from unsaturated sources such as olive oil, nuts, seeds and fish.
Fat by calorie intake
| Calories a day | Total fat, 20–35% | At 30% | Saturated fat, up to 10% |
|---|---|---|---|
| 1,400 | 31–54 g | 47 g | 16 g |
| 1,600 | 36–62 g | 53 g | 18 g |
| 1,800 | 40–70 g | 60 g | 20 g |
| 2,000 | 44–78 g | 67 g | 22 g |
| 2,200 | 49–86 g | 73 g | 24 g |
| 2,500 | 56–97 g | 83 g | 28 g |
| 2,800 | 62–109 g | 93 g | 31 g |
| 3,000 | 67–117 g | 100 g | 33 g |
In the UK, the NHS sets fixed daily maximums instead: no more than 30 g of saturated fat for men and 20 g for women.
Types of fat
- Unsaturated fats (olive and rapeseed oil, nuts, seeds, avocados, oily fish) are the fats most guidelines encourage in place of saturated fat.
- Saturated fat is found mainly in fatty meat, butter, cheese, cream, coconut and palm oil, and many baked and processed foods. Keeping it within the limit is the main numeric fat advice in both the US and UK.
- Trans fat should be kept as low as possible, according to the Institute of Medicine. Artificial trans fats have largely been removed from the US food supply, but small amounts occur naturally in meat and dairy.
The 2025–2030 Dietary Guidelines describe healthy fats as plentiful in whole foods such as meat, poultry, eggs, dairy, olives and avocados, and suggest prioritizing oils with essential fatty acids, such as olive oil, for cooking. They add that significantly limiting highly processed foods helps keep saturated fat under the limit. Health organizations still disagree about some details, such as full-fat dairy, so if you have high cholesterol or heart disease, follow the target your doctor gives you.
Tips
- Read labels per portion. Saturated fat on a label is per serving; multiply by how much you actually eat.
- Fat is energy-dense. A tablespoon of oil has about 14 g of fat, roughly 120 kcal, so amounts add up quickly.
- See the whole plan. The macro calculator fits fat together with protein and carbohydrate for the same calories.
This is not medical advice; talk to a doctor or registered dietitian.
Sources
- USDA and HHS. Dietary Guidelines for Americans, 2025–2030 (January 2026), via dietaryguidelines.gov.
- Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. National Academies Press, 2002/2005 (DRI summary tables).
- NHS, Fat: the facts.
Frequently asked questions
How many grams of fat should I eat a day?
For adults, the recommended range is 20–35% of calories from fat. At 2,000 kcal a day that is about 44–78 g of fat, and at 2,500 kcal about 56–97 g. Divide calories from fat by 9 to get grams.
How much saturated fat is too much?
The Dietary Guidelines for Americans, 2025–2030 say saturated fat should not exceed 10% of total daily calories. That is about 22 g a day at 2,000 kcal and 28 g at 2,500 kcal. In the UK, the NHS says no more than 30 g a day for men and 20 g for women.
Did the 2025–2030 Dietary Guidelines change the saturated fat limit?
No. The 2025–2030 edition, published in January 2026, keeps the 10%-of-calories limit used in the 2020–2025 edition, while encouraging fats from whole foods and suggesting that significantly limiting highly processed foods will help meet the goal.
How do I convert fat percentage to grams?
Multiply your daily calories by the percentage, divide by 100, then divide by 9, because fat provides about 9 kcal per gram. For example, 30% of 2,000 kcal is 600 kcal, or about 67 g of fat.
Is a low-fat diet healthier?
Not necessarily. Fat carries fat-soluble vitamins and essential fatty acids, and going below 20% of calories falls outside the recommended range. Guidelines focus more on the type of fat: less saturated and trans fat, and more unsaturated fats from foods like nuts, seeds, fish and olive oil.