Eliminate manual math errors. Instant, accurate conversions for solid weights, liquid volumes, and suspension concentrations — built to the 2026 safety standards phasing out household measurements.
The 10× Error Risk
Confusing mg with mcg results in a 1,000× overdose. Confusing mg with g results in a 1,000× underdose. Unit conversion errors are among the most common causes of preventable medication fatalities.
Quick Reference
⚠️ Clinical Disclaimer
The MedaDose Dosage Converter is a mathematical utility designed to assist with standard unit conversions. It does not provide medical advice, verify therapeutic appropriateness, or account for patient-specific factors such as renal function, weight, age, or comorbidities. Always double-check calculations and consult a licensed pharmacist or physician before administering any medication.
Medication errors involving unit conversions — particularly between milligrams (mg) and micrograms (mcg) — are among the most common and dangerous in all of healthcare. A single misplaced decimal point creates what pharmacists call a "10× error": a dose that is ten, one hundred, or even one thousand times higher or lower than intended.
These errors are disproportionately fatal in pediatric and geriatric care, where therapeutic windows are narrow and patients have limited physiological reserve to compensate for overdose. The Institute for Safe Medication Practices (ISMP) has flagged mcg/mg confusion as a persistent "high-alert" error category for over two decades.
The American Academy of Pediatrics (AAP), the FDA, and the Institute for Safe Medication Practices (ISMP) have all issued formal guidance recommending the elimination of teaspoon (tsp) and tablespoon (tbsp) measurements from all pediatric liquid medication labeling and prescribing. Household spoons vary in volume by up to 20%, making them an inherently imprecise dosing instrument.
Modern prescriptions and pharmacy labels are increasingly written in milliliters (mL) only, dispensed with calibrated oral syringes. Our Liquid Volume converter bridges this gap — helping caregivers translate legacy tsp/tbsp instructions into the precise mL doses that oral syringes are designed to deliver.
mg → mcg (1,000×)
HIGHDigoxin, levothyroxine, and fentanyl are dosed in mcg. Prescribing in mg by mistake causes a 1,000× overdose.
g → mg (1,000×)
HIGHAcetaminophen toxicity threshold is 4g/day. Confusing grams with milligrams leads to dangerous underdosing or overdosing.
tsp → mL (5×)
MODERATE1 tsp = 5 mL. Household spoons vary by ±20%. Always use an oral syringe calibrated in mL for liquid medications.
Suspension Concentration
MODERATEAmoxicillin comes in 125mg/5mL and 250mg/5mL. Using the wrong concentration without recalculating causes 2× dosing errors.
7,000+
deaths annually from preventable medication errors
ISMP / FDA
1,000×
overdose risk from mg/mcg confusion
Clinical Pharmacology
20%
dosing variability from household teaspoons
AAP 2023
98%
of dosing errors are preventable with correct unit conversion
NEJM 2021
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