Cooking Fat Calculator: Fat on the Plate, Not in the Pan
Most trackers count every gram of oil you pour. Some of it stays in the pan. This calculator estimates what you actually eat.
How much oil is absorbed when pan-frying? It varies by food. Vegetables absorb most of it; fatty meats release fat. A pan with visible fat left over means you ate less than you poured.
Why this matters
A tablespoon of oil is about 13.5 g of fat and 120 kcal. If a recipe uses three tablespoons for two people, counting it all as eaten adds around 180 kcal per person — but some of it is left behind in the pan, on the board, or rendered out of fatty meat.
How the estimate works
Each method uses a default share of fat that stays with the food. These are estimates, not lab measurements: vegetables like eggplant and mushrooms soak up almost all the fat, while bacon and fatty mince release their own fat into the pan. Adjust to what you see — if the pan is dry, you ate it.
This is the method Ketora uses in meal plans; you can change the retained share in your settings. More on the method page.
Frequently asked questions
How much oil is absorbed when pan-frying?
It varies by food. Vegetables absorb most of it; fatty meats release fat. A pan with visible fat left over means you ate less than you poured.
Should I count cooking oil on keto?
Yes, especially if weight loss stalls. Count what ends up on the plate for a realistic number.