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Clinical nutrition tools for dietitians

From nutrition calculations to a clear chart note.

Connect measurements, estimated needs, and feeding comparisons. Keep the math visible and the documentation together.

Free core tools. No account required.

  1. Enter measurements

  2. Estimate needs

  3. Compare regimens

  4. Finish with one note

See it in action

Pro example

Connected Nutrition Workflow

Body weight, estimated needs, and optional tube feeding in one reviewable note.

Switch the example regimen

Same hypothetical formula · 20 hr/day · 300 mL/day flushes

Regimen A · daily provision

Energy
1,800kcal/day
Protein
82.5g/day
Total water
1,500mL/day

B vs A: +360 kcal, +16.5 g protein, +240 mL water/day.

Generated note · regimen A

Formula provides: 1500 mL/day, 1800 kcal/day, 82.5 g protein/day, 1200 mL free water/day. Free Water: 1200 mL/day from formula + 300 mL/day flushes = 1500 mL/day total water.

View the complete combined note
Anthropometrics / calculation weight
Height: 165.0 cm
Actual Weight: 70.0 kg (154.3 lb)
IBW (Devine): 56.9 kg (125.5 lb)
%IBW: 123%
BMI: 25.7 kg/m²

Estimated nutrition needs
Estimated energy needs calculated using weight-based calorie estimate (kcal/kg).
Estimated energy needs: 1750–2100 kcal/day using 25–30 kcal/kg/day and Actual body weight 70 kg
Estimated protein needs: 84–105 g/day using 1.2–1.5 g/kg/day and Actual body weight 70 kg
Estimated fluid needs: 1750–2100 mL/day (1.8–2.1 L/day) using 25–30 mL/kg/day and Actual body weight 70 kg

Tube feeding regimen analysis
Selected regimen: A.
Tube Feeding Regimen: Hypothetical formula at 75 mL/hr x 20 hr/day.
Formula provides: 1500 mL/day, 1800 kcal/day, 82.5 g protein/day, 1200 mL free water/day.
Water flushes: 300 mL/day entered as a manual total.
Free Water: 1200 mL/day from formula + 300 mL/day flushes = 1500 mL/day total water.
Target coverage: Energy: 86-103% of 1750–2100 kcal/day (calculated Estimated Needs); Protein: 79-98% of 84–105 g/day (calculated Estimated Needs); Free water: 71-86% of 1750–2100 mL/day (calculated Estimated Needs).
Total fluid volume: 1,800 mL/day.
View example inputs
Measurements
165 cm · 70 kg · female · age 50
Entered needs factors
25–30 kcal/kg · 1.2–1.5 g protein/kg · 25–30 mL/kg
Hypothetical formula label
1.2 kcal/mL · 55 g protein/L · 800 mL water/L
Open the connected workflow

Synthetic example only, calculated by RDCalc. Not a feeding recommendation.

Formula details and sources includedCopy-ready notes for professional reviewAdult and pediatric calculators

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  • Body Weight Reference and core Estimated Needs
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  • Unit conversions and the quick-convert drawer
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  • Everything in Free, plus advanced needs methods
  • Adult and pediatric workflows with a combined chart note
  • Tube feeding, premix PN, and adult DRI energy requirements
  • Pediatric needs, catch-up targets, and feeding analysis
  • Saved product labels, favorites, and additional intake totals
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Before you get started

For qualified nutrition and healthcare professionals. Review outputs against clinical context, current labels, and local policy.

Professional-use information
Do I need an account?

Body Weight Reference, core Estimated Needs, Pediatric Growth Assessment, and unit conversions are free without an account. An account and active Pro access are needed for the connected workflow and other Pro tools.

What can I save in My Formulas?

Save product-label nutrient values, label sources, verification dates, and favorites for reuse in feeding calculations. My Formulas is a product library, not a patient record. Do not enter patient identifiers or PHI.

How does the trial work?

Eligible new subscribers get 14 days of Pro with no card required. Your trial starts when you complete trial checkout. Add a payment method through Account → Manage billing to continue after the trial; otherwise Pro ends automatically and the free calculators remain available. Returning subscribers pay at checkout.

Can I cancel my subscription?

Yes. Manage or cancel your subscription through Account → Manage billing. If you added payment details during your trial, cancel before it ends to avoid the first charge. Paid subscriptions renew monthly or annually unless canceled before the next renewal.