Enter the ml/hr and the drop factor into the calculator to determine the Gtt/min.

Ml/Hr To Gtt/Min Formula

The following formula is used to calculate the conversion from milliliters per hour (Ml/Hr) to drops per minute (Gtt/Min).

Gtt/Min = (Ml/Hr * D) / 60

Variables:

  • Gtt/Min is the flow rate in drops per minute
  • Ml/Hr is the flow rate in milliliters per hour
  • D is the drop factor (drops per milliliter)

To calculate the flow rate in drops per minute, multiply the flow rate in milliliters per hour by the drop factor. Then, divide the result by 60 (the number of minutes in an hour).

What is a Ml/Hr To Gtt/Min?

Ml/Hr to Gtt/Min is a conversion from milliliters per hour to drops per minute. This is commonly used in medical settings, particularly in intravenous (IV) therapy, to calculate the rate at which fluids or medication should be administered to a patient. The conversion factor can vary depending on the specific drip factor of the IV tubing being used.

How to Calculate Ml/Hr To Gtt/Min?

The following steps outline how to calculate the flow rate in drops per minute (Gtt/Min) using the formula: Gtt/Min = (Ml/Hr * D) / 60.


  1. First, determine the flow rate in milliliters per hour (Ml/Hr).
  2. Next, determine the drop factor (D) in drops per milliliter.
  3. Next, use the formula Gtt/Min = (Ml/Hr * D) / 60 to calculate the flow rate in drops per minute.
  4. Finally, calculate the flow rate in drops per minute (Gtt/Min).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Flow rate in milliliters per hour (Ml/Hr) = 120

Drop factor (D) in drops per milliliter = 20