Fiber Intake Calculator
Answer four quick questions and get your personal daily fiber target — plus simple food ideas to close the gap.
Your daily fiber target
– grams / day
Easy ways to add – g of fiber
Most Americans get around 15 g a day. Here are realistic swaps that add up fast (fiber per typical serving):
Go gradual: add 5 g per week and drink extra water — jumping straight to 35 g is the classic recipe for bloating. Why fiber causes gas (and how to avoid it).
Not medical advice. This calculator uses general nutrition guidelines (14 g of fiber per 1,000 kcal; Institute of Medicine reference values of 38 g/day for men and 25 g/day for women under 50). It is an educational estimate only — talk to a doctor or registered dietitian about your individual needs.