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Medical Unit Converter

Comprehensive medical unit conversions for healthcare professionals

Conversion Categories
Weight & Mass Converter
Quick Reference
Common Weight & Mass Conversions:
  • Patient weight: 150 lbs → kg
  • Drug dose: mg/kg calculations

Available Units:
kg
g
mg
mcg
lb
oz
st

UnitSymbolDescriptionMedical Use
Kilogram
kg
SI base unit for massBody weight, dose calculations
Gram
g
Common for medication doses
Milligram
mg
Standard medication unitStandard medication dosing unit
Microgram
mcg
Small medication doses
Pound
lb
US customary unit
Ounce
oz
Small weight measurements
Stone
st
UK weight measurement

Weight Conversions
  • 1 kg = 2.205 lbs

    Patient weight conversion

  • 1 g = 1000 mg

    Medication dose scaling

  • 1 mg = 1000 mcg

    Small dose conversions

  • 1 stone = 14 lbs = 6.35 kg

    UK weight measurements

Volume Conversions
  • 1 L = 1000 mL

    IV fluid calculations

  • 1 mL = 1 cc

    Equivalent measurements

  • 1 mL ≈ 20 drops

    IV drip calculations

  • 1 fl oz = 30 mL

    Oral medication volumes

Temperature Conversions
  • Normal body temp: 37°C = 98.6°F

    Fever assessment baseline

  • Fever: >38°C (100.4°F)

    Clinical fever threshold

  • Refrigeration: 2-8°C (36-46°F)

    Medication storage

  • Room temp: 20-25°C (68-77°F)

    Standard storage

Pressure Conversions
  • Normal BP: 120/80 mmHg

    Blood pressure reference

  • 1 kPa = 7.5 mmHg

    SI pressure conversion

  • 1 cmH2O = 0.74 mmHg

    Ventilator pressures

  • 1 atm = 760 mmHg

    Atmospheric pressure

📏 Medical Unit Conversion Guide

Medical unit conversion is a critical skill for healthcare professionals, requiring precision and understanding of various measurement systems. Our Medical Unit Converter provides comprehensive conversion capabilities across all major medical measurement categories with professional-grade accuracy and medical context.

🏥 Weight & Mass Conversions in Healthcare

Weight measurements are fundamental in healthcare for patient assessment and medication dosing:

  • Patient Weight: Converting between pounds (lbs) and kilograms (kg) for accurate BMI calculations, medication dosing, and medical equipment sizing. Most medical calculations use metric units.
  • Medication Dosing: Converting between grams (g), milligrams (mg), and micrograms (mcg) for precise drug administration. Many medications are dosed per kilogram of body weight.
  • Laboratory Values: Converting between different weight units for lab results and concentration calculations, ensuring accuracy in clinical decision-making.

💧 Volume & Fluid Conversions

Volume conversions are essential for fluid management and medication administration:

  • IV Fluid Administration: Converting between liters (L) and milliliters (mL) for accurate fluid balance calculations and IV pump programming.
  • Medication Volumes: Converting between mL, cc (cubic centimeters), and drops for injectable medications and IV drug preparations.
  • Intake/Output Monitoring: Converting between various volume units for accurate fluid balance monitoring and kidney function assessment.

🧪 Concentration & Solution Conversions

Drug concentration conversions ensure safe medication preparation and administration:

  • Drug Concentrations: Converting between mg/mL, mg/dL, and percentage concentrations for IV drug preparations and dilutions.
  • Laboratory Values: Converting between different concentration units for blood glucose, cholesterol, and other lab parameters across different measurement systems.
  • Solution Preparations: Converting between weight/volume percentages and parts per million for antiseptic solutions and cleaning agents.

🌡️ Temperature Conversions in Healthcare

Temperature conversions are critical for patient care and medication storage:

  • Body Temperature: Converting between Celsius and Fahrenheit for accurate fever assessment and hypothermia detection. Normal body temperature is 37°C (98.6°F).
  • Medication Storage: Converting storage temperatures for vaccines and medications, ensuring proper cold chain maintenance (2-8°C = 36-46°F).
  • Laboratory Conditions: Converting temperatures for lab equipment calibration and specimen storage requirements.

🩺 Pressure Conversions & Blood Pressure

Pressure measurements are fundamental for cardiovascular assessment:

  • Blood Pressure: Standard measurement in mmHg (millimeters of mercury) for systolic and diastolic pressure readings. Normal BP is approximately 120/80 mmHg.
  • Ventilator Settings: Converting between mmHg and cmH2O for respiratory pressure settings and lung function assessments.
  • Intracranial Pressure: Monitoring and converting pressure measurements for neurological assessment and critical care management.

📐 Length & Height Measurements

Length conversions are important for patient assessment and medical procedures:

  • Patient Height: Converting between feet/inches and centimeters for BMI calculations, growth charts, and medical equipment sizing.
  • Wound Measurements: Converting between cm, mm, and inches for accurate wound documentation and healing progress tracking.
  • Medical Device Sizing: Converting measurements for catheter sizes, endotracheal tubes, and other medical equipment.

⚡ Energy & Metabolic Conversions

Energy conversions are essential for nutritional assessment and metabolic calculations:

  • Caloric Content: Converting between calories (cal), kilocalories (kcal), and kilojoules (kJ) for nutritional assessments and dietary planning.
  • Metabolic Rate: Converting energy expenditure measurements for basal metabolic rate calculations and exercise prescription.
  • Nutritional Analysis: Converting between different energy units for food composition analysis and therapeutic diet planning.

📊 Common Medical Conversion Factors

Key conversion factors every healthcare professional should know:

  • Weight: 1 kg = 2.205 lbs, 1 g = 1000 mg = 1,000,000 mcg
  • Volume: 1 L = 1000 mL = 1000 cc, 1 fl oz ≈ 30 mL, 1 mL ≈ 20 drops
  • Temperature: °C to °F: (°C × 9/5) + 32, °F to °C: (°F - 32) × 5/9
  • Pressure: 1 kPa = 7.5 mmHg, 1 cmH2O = 0.74 mmHg, 1 atm = 760 mmHg
  • Length: 1 inch = 2.54 cm, 1 foot = 30.48 cm, 1 meter = 100 cm

🎯 Clinical Applications & Best Practices

Professional guidelines for medical unit conversions:

  • Double-Check Critical Conversions: Always verify high-risk medication dose conversions with a colleague or reference source, especially for pediatric or critical care medications.
  • Use Standard Medical Units: Prefer metric units (kg, mL, °C, mmHg) for medical calculations as they are the international standard in healthcare.
  • Document Conversion Sources: When performing critical conversions, document the conversion factor used and reference source for quality assurance.
  • Consider Significant Figures: Use appropriate precision for clinical context - patient weight to nearest 0.1 kg, drug doses to appropriate decimal places.
  • Institutional Protocols: Follow your healthcare facility's specific protocols for unit conversions and medication calculations.

⚠️ Safety Considerations

Important safety guidelines for medical unit conversions:

  • High-Alert Medications: Exercise extreme caution when converting units for insulin, heparin, chemotherapy drugs, and other high-alert medications.
  • Pediatric Calculations: Pediatric doses require special attention to weight-based calculations and age-appropriate dosing ranges.
  • Decimal Point Errors: Be particularly careful with decimal placement - a 10-fold error can be life-threatening in medication administration.
  • Unit Abbreviations: Use standard medical abbreviations and avoid dangerous abbreviations on the ISMP "Do Not Use" list.

🔗 Related Medical Tools

Enhance your medical calculations with these complementary tools:

  • Drug Dosage Calculator: Calculate precise medication doses based on patient weight, age, and clinical indication with safety checks.
  • IV Drip Rate Calculator: Calculate IV infusion rates, drop factors, and administration times for various medications and fluids.
  • BMI Calculator: Calculate body mass index using converted height and weight measurements for nutritional assessment.
  • Calorie Calculator: Calculate daily caloric needs using metabolic rate formulas and activity levels for nutritional planning.

📋 Medical Disclaimer: This Medical Unit Converter is designed as a reference tool for healthcare professionals and educational purposes. Always verify critical conversions using multiple sources and follow your institution's protocols for patient care. For life-critical calculations, consult with pharmacists, physicians, or other qualified healthcare professionals. This tool should not replace clinical judgment or professional medical advice.