Nursing calculator guides

Estimate creatinine clearance with the Cockcroft-Gault formula for renal drug dosing. Free nursing calculator with the equation and a worked example.

Calculate body mass index, ideal body weight (Devine) and adjusted body weight in one place. Free nursing calculator with formulas and an example.

Calculate body surface area with the Mosteller and Du Bois formulas. Free nursing calculator with a worked example.

Calculate pediatric maintenance IV fluid rate and daily volume with the Holliday-Segar 4-2-1 rule. Free nursing calculator with an example.

Calculate estimated blood volume and maximum allowable blood loss by weight and hematocrit. Free nursing and surgical calculator with an example.

Calculate how long an oxygen cylinder lasts at a given flow rate, by tank size. Free nursing and respiratory calculator with an example.

Add up intake and output and get the net fluid balance for a shift, with ounce to mL conversion. Free nursing calculator with an example.

Calculate daily volume, calories, protein and free water from an enteral tube feeding order. Free nursing calculator with an example.

Calculate a heparin infusion pump rate and bolus volume from the order and bag concentration. Free nursing calculator, rate math only.

Calculate an insulin infusion pump rate from the order and bag concentration. Free nursing calculator, rate math only.

Convert an oxytocin (Pitocin) order in mU/min to a pump rate in mL/hr. Free nursing and OB calculator with an example.

Calculate magnesium sulfate loading and maintenance infusion rates from the order and bag concentration. Free nursing and OB calculator with an example.

Interpret an arterial blood gas step by step: acidosis or alkalosis, respiratory or metabolic, and compensation. Free nursing calculator with an example.

Calculate 24-hour burn fluid resuscitation with the Parkland formula, including the two infusion rates. Free nursing calculator with an example.

Build a GTPAL from an obstetric history and estimate the due date from the LMP with Naegele’s rule. Free nursing and OB calculator with an example.