Enter the volume (mL) and the time (hr) into the Calculator. The calculator will evaluate the Infusion Speed. 

Infusion Speed Formula

IS = V / T


  • IS is the Infusion Speed (ml/hr)
  • V is the volume (mL)
  • T is the time (hr)

To calculate Infusion Speed, divide the volume infusion by the total time.

How to Calculate Infusion Speed?

The following steps outline how to calculate the Infusion Speed.

  1. First, determine the volume (mL). 
  2. Next, determine the time (hr). 
  3. Next, gather the formula from above = IS = V / T.
  4. Finally, calculate the Infusion Speed.
  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.

volume (mL) = 400

time (hr) = 50