Daily Fiber Intake Calculator

Estimate a practical daily fiber target based on age, sex, calorie intake, and nutrition goal.

Age changes the suggested fiber target slightly.
Used for broad nutrition reference targets.
A common nutrition rule uses fiber per 1,000 kcal.
The goal slightly shifts the practical suggestion.
Used to estimate fiber per meal.
Choose a simpler or more detailed result.
How we calculate

We combine a broad age-and-sex reference target with a calorie-based estimate of about 14 g of fiber per 1,000 kcal, then adjust slightly for your main nutrition goal.