100 mL over 1 hour (15 gtt/mL)
Volume of Infusion (mL): 100; Infusion Time (hours): 1; Drop Factor (drops/mL): 15 drops/mL
Flow Rate (drops/minute): 25 drops/minute; Flow Rate (mL/hour): 100 mL/hour
IV Flow Rate Calculator
Health0.0(0)
Calculates the infusion rate for intravenous fluids in mL/hour or drops/minute.
More tools:Health Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Volume of Infusion (mL), Infusion Time (hours), and Drop Factor (drops/mL) in the units shown.
Step 2
Read Flow Rate (drops/minute) and Flow Rate (mL/hour) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
500 mL over 4 hours (20 gtt/mL)
Volume of Infusion (mL): 500; Infusion Time (hours): 4; Drop Factor (drops/mL): 20 drops/mL
Flow Rate (drops/minute): 41.66666667 drops/minute; Flow Rate (mL/hour): 125 mL/hour
1000 mL over 8 hours (10 gtt/mL)
Volume of Infusion (mL): 1,000; Infusion Time (hours): 8; Drop Factor (drops/mL): 10 drops/mL
Flow Rate (drops/minute): 20.83333333 drops/minute; Flow Rate (mL/hour): 125 mL/hour
Explore the topic
Explore More Health Calculators
Explore practical health calculators for BMI, due dates, age tracking, calorie planning, and other everyday estimates.
People Also Calculate
Related Calculators
Continue with another tool on a related topic.
Health
Bone Age Calculator - Greulich & Pyle Method
Compare a bone age already assessed by a clinician with chronological age in years and months. This tool calculates the age difference; it does not read X-rays, determine skeletal maturity or diagnose a condition.
5,835 viewsOpen calculator
Health
Breast Cancer Risk Calculator (Gail Model)
Estimates a woman's risk of developing invasive breast cancer over the next 5 years and lifetime. This calculator uses the Gail Model, which considers factors such as age, race, personal history of breast biopsies, family history of breast cancer, and age at first menstrual period and childbirth.
1,361 viewsOpen calculator
Health
Coffee Consumption Health Tracker
This calculator helps analyze your caffeine intake from coffee, assesses potential health impacts, and provides personalized coffee consumption recommendations. It supports different brewing methods.
1,305 viewsOpen calculator
Health
Mean Arterial Pressure (MAP) Calculator
Calculates the average arterial pressure during a single cardiac cycle. MAP is considered a better indicator of perfusion to vital organs than systolic blood pressure.
1,302 viewsOpen calculator
Important
Use the result as an estimate and confirm any medical decisions with a qualified professional.