Weight-Based Emergency Drug Calculator

Calculate pediatric emergency drug doses for epinephrine, atropine, amiodarone, and naloxone by weight.

Inputs

Patient Weight

Drug

Tab to move between fields

Results

Dose

0.1 mg

Volume to Administer

1 mL

Concentration0.1 mg/mL (1:10,000)

Maximum Dose1 mg

How to Use This Calculator

Enter the patient's actual body weight in kg — always use measured weight, not estimated weight, for emergency drug dosing.
Select the Drug: 1 = Epinephrine (0.01 mg/kg), 2 = Atropine (0.02 mg/kg), 3 = Amiodarone (5 mg/kg), 4 = Naloxone (0.1 mg/kg).
Review the calculated Dose in mg and Volume to Administer in mL at the standard concentration shown.
Note the Maximum Dose — the calculated dose is automatically capped at the adult maximum.
Verify the Concentration displayed matches the preparation available; always double-check doses with a second clinician before administration.

How the result changes with Patient Weight

Patient Weight	Dose	Volume to Administer
10	0.1 mg	1 mL
35	0.35 mg	3.5 mL
65	0.65 mg	6.5 mL
90	0.9 mg	9 mL

What each input means

Patient Weight: Patient weight in kilograms — use actual body weight.
Drug: 1 = Epinephrine (0.01 mg/kg), 2 = Atropine (0.02 mg/kg), 3 = Amiodarone (5 mg/kg), 4 = Naloxone (0.1 mg/kg).

How this is calculated

Worked example, using the default values

Identify Input Parameters
Patient Weight = 10, Drug = 1 = 2 input(s) provided
Calculate Dose
Dose
0.1 = 0.1
Calculate Volume to Administer
Volume to Administer
1 = 1
Calculate Concentration
0.1 mg/mL (1:10,000) = 0.1 mg/mL (1:10,000)

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