Dietetix
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Patient Information

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yrs
in
cm
lb
kg
Body Mass Index (BMI)
—
—
18.525303540
Reverse BMI

Find the weight or height corresponding to a BMI using the patient measurement entered above.

Enter the patient’s height above to calculate weight.

Weight (kg) = BMI × height (m)²

lb
kg
% UBW—
% Weight Change—
Weight Change—
Clinical Factors
Intubated / ventilated
Volume overload

Estimated Energy Needs

kcal/kg
Actual Wt (—)
IBW (—)
25–30
—
—
30–35
—
—
35–40
—
—
Predictive Equations
Activity Factor
Equation
BMR
TEE
Mifflin-St Jeor
—
—
Harris-Benedict
—
—
Schofield
—
—
Katch-McArdle
BF
%
needs BF%
—

Estimated Protein Needs

g/kg
Actual Wt (—)
IBW (—)
0.8–1.0
—
—
1.2–1.5
—
—
1.5–1.8
—
—
1.5–2.0
—
—
2.0–2.5
—
—
Protein % kcal
Pro % kcal
%
kcal needs
kcal
Pro (g)
— g

Estimated Fluid Needs

Highlighted range reflects age-based recommendations
mL/kg
Actual wt (—)
IBW (—)
25–30
—
—
30–35
—
—
35–40
—
—
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Tube Feeding Formula Selection and Rate Calculation
TF Formula & Rate
Desired kcal
kcal
Formula
Rate
— mL/hr
Total kcal0 kcal
Total protein0g
Free water0 mL
Free Water Flushes
Amount
mL
Frequency
qh
Total
– mL
TF Modulars
Modular
Quantity
Total
kcal0 kcal
protein0g
water0 mL
EN Prescription Totals
Includes formula, flushes, and modulars
Total kcal
0 kcal
Total Protein
0 g
Total Free Water
0 mL
Carbohydrate0 g
Fiber0 g
Potassium0 mg
Phosphorus0 mg
Sodium0 mg
Pro feature - upgrade to access
TPN/PPN Formulation Calculator
Macronutrients
Desired kcal
kcal
Amino Acids
g
—
kcal
Dextrose(auto)
g
—
kcal
Lipids
g
500
kcal
Total
—kcal
Administration
Total volume
mL
Infusion hours
hr
Rate
— mL/hr
PN Prescription Totals
Electrolytes
Sodium95 mEq
Potassium60 mEq
Phosphate15 mmol
Chloride75 mEq
Acetate60 mEq
Macronutrients
Total kcal500 kcal
Protein—
Dextrose—
Lipids50 g
Volume—
Rate—
Osmolarity—
Parenteral Nutrition

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IV Dextrose, Propofol, and CRRT Calories
IV Dextrose
3.4 kcal/g
Dex %
%
Rate
mL/hr
24h Volume
mL/24h
Provides
— kcal
—g Dex
Propofol
1.1 kcal/mL
Average Rate
mL/hr
Total Volume, 24h
mL/24h
kcal/day
— kcal
CRRT (Continuous Renal Replacement Therapy)
Citrate and dextrose-containing CRRT fluids
Citrate / ACD-A
Rate
mL/hr
24h Volume
mL/24h
kcal/day
— kcal
Pre-filter replacement
Dex %
%
Rate
mL/hr
24h Volume
mL/24h
kcal/day
— kcal
Post-filter replacement
Dex %
%
Rate
mL/hr
24h Volume
mL/24h
kcal/day
— kcal
Total CRRT kcal
—kcal
Estimated using ~40% citrate metabolism. Actual contribution may range ~35–45%.
Total non-nutrition kcal
—
kcal
Non-Nutrition Calories

Create a free account to access non-nutrition calorie sources and advanced calorie adjustments.

Measured Na
mEq/L
Glucose
mg/dL
Corrected Na
— mEq/L
Formula: Corrected Na = Measured Na + 1.6 × ((Glucose - 100) / 100)
Serum Ca
mg/dL
Albumin
g/dL
Corrected Ca
— mg/dL
Formula: Corrected Ca = Serum Ca + 0.8 × (4.0 - Albumin)
Serum Na
mEq/L
Free Water Deficit
— L
Formula: Free Water Deficit = TBW × ((Serum Na / 140) - 1)
TBW = —
%TBW (Total Body Water) factor reference
Child: 0.6
Adult male: 0.6
Adult female: 0.5
Older adult male: 0.5
Older adult female: 0.45
Enter patient age, sex, and weight in the Patient Information panel to calculate free water deficit.
Saved Patients
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Clinical decision support tool. Not a substitute for professional judgment.