Dextrose Calculator

The Dextrose Calculator estimates the precise volume of IV solution and total dextrose dosage based on patient weight and concentration. This tool helps medical professionals quickly determine safe fluid requirements to manage blood sugar levels effectively. Whether you're treating hypoglycemia, preparing maintenance fluids, or calculating pediatric nutritional needs, this tool provides accurate dosing to prevent under or over-dosing.

Enter patient weight
Enter desired dextrose dosage
Adjust the infusion rate for IV solutions

How Dextrose Dosage Is Calculated

The dextrose dosage determines the exact amount of glucose required to treat or manage a patient’s condition. This calculation ensures the patient receives the right energy load without risking fluid overload.

Volume (mL) = (Weight × Dosage) ÷ (Concentration / 100)

Where:

  • Weight = Patient's weight in kg
  • Dosage = Required grams per kg or total grams
  • Concentration = Dextrose percentage (e.g., 5 for D5W)
  1. Convert Weight: The tool first converts the patient's weight into kilograms to match medical standards.
  2. Determine Grams: It calculates the total grams of dextrose needed based on the specific dosage rate.
  3. Convert to Volume: Finally, it divides the grams by the concentration to find the exact milliliters of IV solution needed.

What Your Dextrose Dosage Means

Your result provides the specific amount of sugar water needed to stabilize a patient’s blood sugar or provide nutritional support.

Hypoglycemia Treatment

For emergency low blood sugar, a result of 25g is standard. This amount is typically administered rapidly to reverse symptoms quickly.

Maintenance Fluids

For hospitalized patients unable to eat, results often range from 100g to 200g per day. This prevents the body from breaking down muscle for energy.

Pediatric Requirements

Children have smaller blood volumes, so results often specify a lower volume but higher concentration. This ensures they get enough sugar without fluid overload.

Important Safety Note

Solutions over 10% concentration can be irritating to veins. Always verify if a central line is required for higher concentration results.

Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or medication. Monitor blood glucose levels closely after administration to ensure patient safety.