Health & Fitness Calculators

Daily Fiber Intake Calculator

Enter your daily calorie intake to calculate a recommended daily fiber target.

28 g/day

Uses the USDA guideline of about 14 grams of fiber per 1,000 calories consumed. Fixed general targets of around 25g/day for women and 38g/day for men are also commonly cited as simpler rules of thumb.

How to use this tool

  1. 1Enter your typical daily calorie intake.
  2. 2See your recommended daily fiber target.

Frequently asked questions

What foods are good fiber sources?+

Whole grains, legumes, fruits, and vegetables are the main sources — most adults in the US fall well short of recommended fiber intake.

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