Nursing Calculators

Fast, accurate calculators for the bedside and the boards. No ads, no signup, mobile-first. Each tool ships with the formula, normal ranges, and an NCLEX-aligned worked example.

IV / Infusion

IV Drip Rate Calculator

gtt/min from volume, time, and tubing drop factor. Includes mL/hr cross-check and macro vs micro tubing primer.

Open tool → Pediatrics

Pediatric Dosage by Weight

mg/kg dosing with safe-dose-range checking and per-day vs per-dose toggling. Common peds drugs prefilled.

Open tool → Burn / Critical Care

Parkland Burn Formula

4 mL × kg × %TBSA over 24 hours. Splits the first-8-hour and next-16-hour LR rates the way the NCLEX asks it.

Open tool → Hemodynamics

MAP, Mean Arterial Pressure

(SBP + 2·DBP) / 3 with perfusion thresholds (≥65 mmHg for organ perfusion in sepsis).

Open tool → Neuro

Glasgow Coma Scale (GCS)

Interactive eye/verbal/motor scorer with severity tier (mild 13–15, moderate 9–12, severe ≤8) and intubation cue.

Open tool → Acid-Base

Anion Gap

Na − (Cl + HCO₃) with high-gap differential (MUDPILES) and corrected gap when albumin is low.

Open tool → Electrolytes

Corrected Calcium (Albumin-Adjusted)

Total Ca + 0.8 × (4 − albumin). The number to trust when albumin is low, what your textbook is testing on.

Open tool → Conversions

mEq ↔ mg Conversion

Quick conversion for common electrolytes (KCl, NaCl, NaHCO₃, MgSO₄, calcium gluconate). NCLEX dosage-calc favorite.

Open tool →

Why these calculators exist

Most clinical calculators online were built for physicians and bury the nursing-relevant interpretation under jargon. These were built nurse-first. Each one ships with the formula written out, the normal range or interpretation tier next to the result, the most common NCLEX trap, and a one-tap link to practice the same calculation in test-style context inside the Nursing Ready app.

No data is sent anywhere, every calculation runs in your browser. No signup, no email gate, no ads.

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