Enteral Nutrition Target Calculator (kcal/kg + Protein g/kg)

Enteral Nutrition Target Calculator (kcal/kg + Protein g/kg) | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Health
Input types: number, select
Output type: json
Sample coverage: 4
API ready: Yes

Overview

The Enteral Nutrition Target Calculator estimates daily energy and protein targets for enterally fed adults, then converts the energy target into formula volume and a 24-hour starting rate using the selected formula density. It also compares formula-delivered protein with the prescribed protein target. This tool is not medical advice.

When to use

Estimate daily kcal and protein targets from body weight and prescribed kcal/kg/day and g/kg/day values.
Convert an energy target into the approximate daily volume and hourly rate for a selected enteral formula.
Check whether the selected formula provides enough protein to meet the calculated daily target.

How it works

1Enter body weight and select whether the calculation uses actual, ideal, or adjusted body weight.
2Enter the prescribed energy target in kcal/kg/day and protein target in g/kg/day.
3Select the formula energy density and enter its protein content in g/L.
4Review the calculated kcal target, protein target, formula volume, 24-hour starting rate, and protein delivered.

Use cases

Dietitians can compare formula volume and protein delivery with prescribed nutrition targets.
Critical care teams can quantify energy and protein delivery when using lower early energy targets.
Clinicians can compare standard and concentrated formulas when fluid volume is an important consideration.

Examples

1. Standard maintenance enteral feeding

Dietitian

Background

A 70 kg adult has a prescribed target of 25 kcal/kg/day and 1.2 g protein/kg/day. The selected formula provides 1.0 kcal/mL and 40 g protein/L.

Problem

Determine the daily energy and protein targets and check whether the formula meets the protein prescription.

How to use

Enter 70 kg, select actual body weight, enter 25 kcal/kg/day and 1.2 g/kg/day, select 1.0 kcal/mL, and enter 40 g/L protein.

Weight: 70 kg; weight basis: actual; energy: 25 kcal/kg/day; protein: 1.2 g/kg/day; formula: 1.0 kcal/mL; protein density: 40 g/L.

Outcome

The calculator estimates 1750 kcal/day and 84 g protein/day. This requires 1750 mL/day, or about 73 mL/hour over 24 hours, and provides about 70 g protein, or 83% of the target.

2. Early critical illness with a concentrated formula

Critical care clinician

Background

An 80 kg adult has a prescribed early critical-illness target of 14 kcal/kg/day and 1.5 g protein/kg/day. The formula provides 1.5 kcal/mL and 75 g protein/L.

Problem

Estimate the concentrated formula volume and identify the gap between formula-delivered protein and the daily target.

FAQ

What does this calculator calculate?

It calculates daily energy and protein targets, formula volume in mL/day, a 24-hour rate in mL/hour, and protein delivered by the selected formula.

Which weight should I enter?

Use actual body weight unless ideal or adjusted weight is clinically selected, such as with obesity or significant fluid overload. Record the weight basis used.

How is formula volume calculated?

Daily formula volume equals the energy target in kcal divided by the formula density in kcal/mL.

How is the hourly rate calculated?

The displayed 24-hour rate is the daily formula volume divided by 24 hours.

What if formula protein is below the target?

Review the result with the responsible clinician or dietitian. A different formula or a protein modular may be considered clinically, but the calculator does not prescribe treatment.

Weight: 80 kg; weight basis: actual; energy: 14 kcal/kg/day; protein: 1.5 g/kg/day; formula: 1.5 kcal/mL; protein density: 75 g/L.

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Standard maintenance enteral feeding

2. Early critical illness with a concentrated formula

FAQ

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