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Fibre needs calculator

Fibre needs calculator: The stored adult guide combines at least 30 g/day with 14.6 g/1,000 kcal.

Your result

Complete the fields and calculate.

Calculation method and formula

maximum(30, Daily energy [kcal] × 14.6 ÷ 1000)

Understand the inputs

Daily energy
Unit: kcal. Minimum 1. Use a measured value or your own assumption.

Assumptions and limitations

The stored adult guide combines at least 30 g/day with 14.6 g/1,000 kcal. It does not assess individual tolerance or therapeutic nutrition.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Daily energy
2000 kcal
Example result30 g/day

DGE adult guide: at least 30 g daily or 14.6 g per 1,000 kcal.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Fibre needs calculator work?+

maximum(30, Daily energy [kcal] × 14.6 ÷ 1000). The stored adult guide combines at least 30 g/day with 14.6 g/1,000 kcal. It does not assess individual tolerance or therapeutic nutrition.

What assumptions should I consider for this result?+

The stored adult guide combines at least 30 g/day with 14.6 g/1,000 kcal. It does not assess individual tolerance or therapeutic nutrition. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Health values are general information, not a diagnosis or personal treatment recommendation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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