Medication Dosage by Weight Calculator

Calculate accurate medication doses based on the patient weight (mg/kg).

Enter Values

Patient Weight (kg)

Dose (mg/kg)

Frequency (times/day)

Enter values above and click Calculate to see your result.

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Total Dose = Weight (kg) * Dose Rate (mg/kg)

Calculates the exact amount of drug required based on patient size and clinical dosage guidelines.

70kg patient, 15mg/kg dose -> 70 * 15 = 1050 mg.

Many medications reach therapeutic levels better when adjusted for the patient's size, reducing the risk of underdosing or toxicity.

By default, it calculates the "Total Dose". If a frequency is provided (e.g., 3 times/day), clinicians often divide this total across the day.

No, many adult medications (e.g., Heparin, many antibiotics) also require precise mg/kg calculations.

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I can help you understand the medication dosage by weight calculator formula, interpret your results, and answer follow-up questions.

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