Workspace Summary
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Age
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Sex
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Weight
Length/height—
Current regimen—
Energy—
Protein—
Wt-for-age—
Wt-for-length—
Workspace
Growth Trend
No active workspace. Start one to sync patient data across calculators.
Favorites
Clinical References
What's New
- Jul 2025Goal Regimen Builder: replaces Goal Volume Calculator with full regimen output and copy support.
- Jul 2025Workspace improvements: 7-day idle expiry and storage-failure visibility added.
- Jul 2025Input validation: per-module inline errors and copy gating across all calculators.
Welcome to PediRD
Evidence-based pediatric nutrition tools and references in one place.
This tool is provided for clinical reference and educational purposes only and is not intended to guide or replace medical decision-making. It does not substitute for professional judgment, institutional protocols, or individualized patient assessment. Users assume full responsibility for verifying all calculations and applying them in clinical practice.
Calculators
Browse every calculator and reference tool by category.
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Infant Feeds
Formula/EBM, modulars, totals, and a copyable regimen readout.
Formula or EBM
Modulars
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Detailed Nutrient View
Pediatric Tube Feeds
Calculate enteral nutrition regimens with modular additions and hydration analysis.
Formula & Feeding Schedule
Modulars
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Free Water & Flushes
Detailed Nutrient View
Goal Regimen Builder
Build an infant or pediatric tube-feeding regimen from a calorie goal, with an optional schedule and hydration target.
Goal Regimen Builder
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—Total volume/day
—Rate
Enter a calorie goal and formula to build a regimen.
Total volume = calorie goal ÷ formula caloric density. Maintenance fluid uses the Holliday-Segar method; free-water flush volume is derived from the selected pediatric formula's free-water content (not available for infant formula, breast milk, or fortified breast milk).
Volume Advancement Plan
Generate a 4-week enteral volume advancement schedule with a dated, copyable readout.
Input Parameters
With workspace Sync on, the plan follows the active regimen's achieved kcal/kg/day; Infant Feeds also supplies feeds/day for bolus schedules and kcal/oz. Growth goal uses the top of the chronological-age term band from the Growth Velocity Reference. These derived values can be manually overridden until the next workspace or regimen sync.
Continuous Infant Feeds detected: feeds/day was not auto-filled because this advancement model is bolus-only.
Advancement Schedule
| Date | Weight (kg) | kcal/day | mL/day | Regimen |
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Growth
Percentiles, weight gain, velocity reference, and a single-point growth chart.
Weight Gain / Date Calculator
Days between—
Total weight change—
Rate of change—
Copy Summary
Enter both dates and weights to see a summary.
Growth Velocity Reference
Infants & Toddlers (0-24 months)
| Age | Weight (g/d) | Height (cm/wk) | Head circumference (cm/wk) |
|---|
*Preemie rows are reported in g/kg/d (per kilogram of infant weight), not absolute g/d like the other rows.
Children (2-11 years)
| Age | Weight (g/d) | Height (cm/month) |
|---|
Growth Percentile Calculator (WHO/CDC)
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Growth Chart
Plots the current Growth Percentile Calculator result against the same WHO/CDC percentile reference curves used by the calculator above. A single-point companion view only -- it does not accumulate or persist measurements across sessions.
Corrected Age
Postmenstrual age and due-date-corrected age for preterm infants.
Corrected Gestational Age (CGA) Calculator
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Chronological age
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Corrected gestational age
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Corrected age (from EDD)
Chronological age (months)—
Corrected gestational age (months)—
Corrected age (months)—
Estimated due date—
GA at birth—
Preterm (<37 wk)—
Enter gestational age at birth, date of birth, and the as-of date to calculate corrected age.
Corrected gestational age (postmenstrual age) = gestational age at birth + chronological age. Corrected age = corrected gestational age − 40 weeks, referenced to the estimated due date — the figure used for growth charts and developmental milestones. Per standard AAP/WHO/CDC convention, age correction for prematurity (GA <37 weeks) is typically applied through 24 months chronological age; beyond that, chronological age is used uncorrected. These are population-level conventions, not a substitute for clinical judgment.
Formula Recipes
Concentrate formula or breast milk to custom caloric densities, with PNPG reference recipes.
Formula Mixing
Calculation follows PNPG methodology: final volume = liquid volume + (powder grams × displacement mL/g), converted to oz. Recipes assume unpacked scoops/measures unless the formula is normally packed.
Recipe Generator (Computed + PNPG Reference)
PNPG Reference
Small Batch
Select options above to see the small-batch recipe.
Large Batch
Select options above to see the large-batch recipe.
Formula-only small-batch outputs are computed from the PNPG “Values for Infant Formula: Powders” mixing data. Published PNPG recipe rows remain visible as labeled references. Cup-batch and fortified-EBM guidance remain PNPG-table-only because verified grams-per-cup data are not available.
Renal Calculator
Modular recipe development for pediatric renal insufficiency.
Calculation mode
Manual recipe entry and goal-based recipe generation use the same forward analysis.
Recipe inputs
Used for per-kilogram values.
Water added apart from liquid ingredients.
Ingredients
Powders use grams and liquids use mL. Ingredient volume includes registered powder displacement and liquid volume.
Goals
Target: aim for this value; the calculator allows a small built-in tolerance.At least: the result must meet or exceed this minimum.
No more than: the result must not exceed this maximum.
Range: the result must fall between the lower and upper values, inclusive.
Per kg: enter the goal per kilogram; the calculator multiplies it by the patient weight.
Enter at least one target. Per-kilogram goals require a weight.
Products
The base formula is used preferentially; later products are substituted in only as needed to meet goals.
Detailed nutrient view
| Nutrient | Total | Per kg | Electrolyte | Coverage |
|---|
Show all other nutrients
| Nutrient | Total | Per kg | Electrolyte | Coverage |
|---|
Chylothorax
LCT and essential fatty acid calculator with AI comparison.
Formula & Feeds
Daily calories (formula)0 kcal
Total LCT0 g
Total omega-6 (linoleic acid)0 g
Total omega-3 (ALA)0 g
Total essential fatty acids (formula only)0 g
Walnut Oil Modular
Walnut oil LCT0 g
Walnut oil omega-60 g
Walnut oil omega-30 g
Walnut oil calories0 kcal
Totals & Adequate Intake
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total LCT g/day
0
total EFA g/day
0
total kcal/day
Adequate Intake for Age
AI age bracket matched—
AI omega-6 for age— g/day
AI omega-3 for age— g/day
% of AI met — omega-6—
% of AI met — omega-3—
% of daily calories from omega-6 (linoleic acid)—
% of daily calories from omega-3 (ALA)—
GIR Calculator
Glucose infusion rate for PN, with ASPEN dosing reference ranges by age band.
GIR Calculator
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mg/kg/min (GIR)
Dextrose/day—
Rate used—
Enter weight, rate/volume, and dextrose % to calculate GIR.
Parenteral Nutrition
PN substrate delivery, calories, GIR, NPC:N, osmolarity estimate, and dosing references.
PN Parameters
Substrates
Selection identifies the stock solution and includes only labeled intrinsic contributions available in the worksheet dataset. It does not recommend a product.
Electrolytes & Additives
Allocate sodium and potassium among chloride, acetate, and phosphate products. The worksheet reports the resulting elemental and counterion totals; it never auto-selects a salt.
Elemental totals
Enter additive amounts.
Counterion totals
Enter additive amounts.
ELCYS / cysteine-
Published compatibility screen
Advisory onlyThe published dataset applies to 2-in-1 formulations only. 3-in-1 calculations remain available, but their compatibility is not assessed by this screen.
No applicable published compatibility envelope. Pharmacy verification required.
Dataset conditions are not yet matched.
Dextrose provides 3.4 kcal/g, amino acids provide 4 kcal/g. Lipid emulsion caloric density: SMOF 20% and Intralipid 20% provide 2.0 kcal/mL; Omegaven 10% provides 1.12 kcal/mL. Cysteine HCl is estimated at 40 mg per gram of amino acids. Nitrogen is estimated as amino acid grams divided by 6.25. Osmolarity is an estimate using component concentration factors and excludes cysteine and lipid; verify the final admixture with pharmacy compounding calculations. ASPEN recommends peripheral PN remain below 900 mOsm/L; formulations above 900 mOsm/L should use central access. A formulation at exactly 900 mOsm/L requires pharmacy confirmation.
ASPEN PN Dosing References
ASPEN 2019Macronutrient dosing
| Population | Protein initiation | Protein goal | Dextrose initiation | Dextrose goal | Lipid initiation | Lipid goal |
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Electrolyte dosing
| Population | Sodium | Potassium | Calcium | Phosphorus | Magnesium |
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Multivitamin dosing
| Convention | Weight band | Dose |
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Trace-element dosing
| Population | Zinc | Copper | Manganese | Chromium | Selenium |
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Source Citation
Source: ASPEN Recommendations on Appropriate Parenteral Nutrition Dosing for Neonatal and Pediatric Patients, American Society for Parenteral and Enteral Nutrition (ASPEN), 2019, rev. 1.8.19. These are population-level dosing references and do not replace institutional protocol or individualized clinical judgment.
Unit Converter
Weight, length, temperature, volume, energy, electrolyte, and vitamin unit conversions.
Weight
Type into either field of a pair — the other updates automatically. A conversion utility only; no calculation logic and no workspace Sync integration.
Length
Volume
Energy
Electrolytes (mg ↔ mEq)
mEq = mg × valence ÷ atomic weight (Na 22.99, K 39.10, Cl 35.45, Ca 40.08, Mg 24.31; Ca and Mg are divalent).
Phosphorus (mg ? mmol)
Phosphorus is reported in mmol rather than mEq — physiologic phosphate's valence varies with pH (a mix of HPO4²⁻/H2PO4⁻), so it has no single fixed mEq equivalence. mmol = mg ÷ 30.97 (elemental phosphorus atomic weight).
Vitamin D (mcg ? IU)
1 mcg = 40 IU (cholecalciferol/ergocalciferol; form-independent). Source: NIH Office of Dietary Supplements.
Vitamin E (mg ? IU)
Potency differs by form: natural (RRR-/d-alpha-tocopherol) 1 mg = 1.49 IU; synthetic (all-rac-/dl-alpha-tocopherol) 1 mg = 1.10 IU. Select the form the product actually uses — the two are not interchangeable. Source: NIH Office of Dietary Supplements.
Vitamin A (mcg retinol ? IU)
1 mcg preformed retinol (or retinyl ester) = 3.33 IU. Applies to preformed vitamin A only — beta-carotene and other provitamin-A carotenoids convert at different, food-source-dependent ratios not implemented here. Source: NIH Office of Dietary Supplements.
References
Formula, micronutrient, estimated-needs, and PN dosing references in one place.
Quick References
Formula Library
Verified pediatric nutrition products and comprehensive nutrient analysis.
Formula information comes from product-specific source documents; verification status and dates are shown in Data Sources. This library is provided for clinical reference only; verify current product labeling and institutional guidance before applying values in clinical practice.
Micronutrient Tables
Dietary Reference Intakes and tolerable upper intake levels by life-stage group.
Micronutrient Reference Tables
Dietary Reference Intakes and Tolerable Upper Intake Levels by life-stage group. Values are shown with the units and source markers supplied in the reference files.
Dietary Reference Intakes (DRIs)
Elements
Vitamins
Tolerable Upper Intake Levels (ULs)
Elements
Vitamins
Source Citation
Estimated Needs
Age-based energy and protein, critically ill, fluid, catch-up growth, and preterm needs.
Age-Based Energy & Protein Needs
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DRI kcal/kg/d
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BMR kcal/kg/d
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g protein/kg/d
Total energy (DRI × weight)—
Total energy (BMR × weight)—
Total protein (g/d)—
Estimated energy—
Estimated Needs Readout
Source: Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition (updated June 2025). DRI = Dietary Reference Intake; BMR = basal metabolic rate. For infants 0-2 months, DRI/BMR are not established on this reference — protein target only. The activity factor range is a manual what-if multiplier applied to BMR (not a value from the source reference).
Critically Ill Protein Needs
Protein need—
Total protein (g/d)—
Source: Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition. Applies to critically ill pediatric patients; use in place of standard age-based DRI protein targets when clinically indicated.
Fluid Requirements — Holliday-Segar Method
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mL/day
0
mL/hr
Enter weight to see the Holliday-Segar calculation.
Holliday-Segar Tiers
| Weight band | Fluid formula |
|---|---|
| 1-10 kg | 100 mL/kg |
| 11-20 kg | 1000 mL + 50 mL/kg for each kg >10 kg |
| >20 kg | 1500 mL + 20 mL/kg for each kg >20 kg |
Source: Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition. Holliday-Segar tiers: 1-10 kg = 100 mL/kg; 11-20 kg = 1000 mL + 50 mL/kg for each kg >10 kg; >20 kg = 1500 mL + 20 mL/kg for each kg >20 kg.
Catch-up Growth Needs
Catch-up energy need—
Total energy (kcal/d)—
Formula: kcal/kg/d = [IBW (kg) × DRI (kcal/kg/d for age)] ÷ actual weight (kg). IBW is based on weight-for-length ratio for infants. Source: Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition.
Preterm Infant Needs (VUMC NICU Protocol)
Energy
Energy need110-130 kcal/kg/d
Total energy (kcal/d)—
Protein
Protein need—
Total protein (g/d)—
Source: Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition, Vanderbilt University Medical Center (VUMC) NICU Protocol. The energy target (110-130 kcal/kg/d) applies across all preterm birth-weight bands; the protein target varies by birth weight.
Texas Children's Hospital Pediatric Nutrition Reference Guide, 13th edition — updated June 2025. Not all reference tables from the source sheet are included here (developmental-disability energy methods and the pediatric malnutrition tool are not yet built into this page).
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