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IV Drip Rate Calculator

Input

mL
hours

Flow Rate

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Drip Rate

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About

The IV Drip Rate Calculator determines the infusion rate in mL/hr and drops per minute (gtt/min) for intravenous fluid administration. The drop factor depends on the IV tubing set used: standard sets typically deliver 10, 15, or 20 drops/mL, while micro-drip sets deliver 60 drops/mL. Accurate drip rate calculation is essential for safe IV fluid and medication administration.

Formula

mL/hr = Total Volume (mL) / Time (hours)
gtt/min = (Volume (mL) × Drop Factor (gtt/mL)) / (Time (hours) × 60)

Interpretation

Drop FactorTubing TypeCommon Use
10 gtt/mLBlood/Macro setBlood products, viscous fluids
15 gtt/mLStandard macro setGeneral IV fluids
20 gtt/mLStandard macro setGeneral IV fluids
60 gtt/mLMicro-drip setPediatric, precise rates

References

  1. Phillips LD, Gorski LA. Manual of I.V. Therapeutics: Evidence-Based Practice for Infusion Therapy. 7th ed. F.A. Davis; 2018.
  2. Infusion Nurses Society. Infusion Therapy Standards of Practice. J Infus Nurs. 2021;44(1S):S1-S224.

FAQ

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Disclaimer

For educational and informational purposes only. Not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional.