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Viva Calculator

Tube-Feed Volume and Rate Calculator

Calculate arithmetic tube-feed volume and rate estimates from clinician-provided inputs

For mathematical information only. This calculator does not determine whether, what, when, or how to feed.
Calculate Tube Feeding
cal/day
cal/mL
hours/day

How to Use

  1. Enter the daily calorie target provided by the treating clinical team
  2. Enter the formula density provided by that team
  3. Enter the duration or bolus count provided by that team
  4. Choose the matching calculation mode
  5. Calculate the arithmetic volume or rate estimate

What is Tube Feeding?

Tube feeding, or enteral nutrition, delivers liquid nutrition directly into the stomach or small intestine through a feeding tube. It's used when a person cannot eat enough food by mouth but has a functioning gastrointestinal tract.

Common types include nasogastric (NG), nasojejunal (NJ), gastrostomy (G-tube), and jejunostomy (J-tube) tubes. The feeding method and rate depend on the patient's condition, tube type, and tolerance.

Frequently Asked Questions

What does this calculator estimate?
It divides a clinician-provided calorie target by formula density to estimate daily volume, then divides that volume by a provided duration or bolus count. It does not determine an appropriate feeding plan.