Nursing Calculation Hub
Clear steps for IV fluids, dose calculation and common clinical unit conversions. Learn the method and check your arithmetic.
IV fluid rate
For a prescribed fluid volume over a prescribed time. Enter the actual drop factor printed on the tubing for gravity flow.
Dose calculation practice
Enter the ordered amount and the amount available in one tablet or a stated liquid volume. This is arithmetic practice, not a drug dosing recommendation.
Medical unit converter
Exact metric relationships for common mass and volume units. Choose the same category on both sides.
How to use this tool
Pick a tab, enter values with their units, and press Calculate. Read the displayed formula and check that every input matches the original question or order. The example buttons are for learning.
Results stay in your browser while this page is open. The Favourite button saves this page as a local shortcut on this device; it does not send clinical information anywhere.
Frequently asked questions
How is mL/hour calculated?
Divide the total fluid volume in mL by the total infusion time in hours.
How are drops/minute calculated?
Multiply mL by the tubing drop factor in drops/mL, then divide by the total time in minutes. Whole drops are rounded for display.
Can this tool decide a medication dose?
No. It only works out the quantity from values you provide. A prescribed dose, concentration and clinical checks must come from qualified sources and local policy.
Does it handle paediatric, oncology or high-alert drugs?
No. It has no drug database, maximum-dose rules, patient-specific guidance or protocol checks. Follow specialist and institutional procedures.
References for the methods: OpenStax dosage calculations · OpenStax IV infusion. Last reviewed: September 2026.
