NG Tube Insertion Length (Corrected NEX)
Turns an adult nose-earlobe-xiphoid (NEX) measurement into a nasogastric tube insertion length with the corrected NEX formula.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- NEX distance
- 50 cm
Result: Insert to about 56 cm (corrected NEX): NEX 50 cm x 0.38696 + 30.37 + 6.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- NEX distance (nose tip to earlobe to xiphoid)
How this is calculated
Citation
Boeykens K, Holvoet T, Duysburgh I. Nasogastric tube insertion length measurement and tip verification in adults: a narrative review. Crit Care. 2023;27:317. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.