Formulas · IV flow rate (mL/hr)
Formula reference
IV flow rate formula (mL/hr)
mL/hr = Volume (mL) ÷ Time (hr)
IV pumps are programmed in mL/hr. Divide the ordered volume by the time in hours and round to a whole rate the pump accepts.
What each part means
| Volume | Total volume to infuse (mL) |
|---|
| Time | Infusion time in hours |
|---|
Worked example
1000 mL over 8 hr: 1000 ÷ 8 = 125 mL/hr.