Body Surface Area Based Dosing

Medication dose adjustment based on body surface area (BSA)

The global unit selector only affects unanswered questions
1.BSA Based Dose
4.Select either
5.Desired dose unit
Created by

1. BSA Based Dose

Created by
0/5 completed

About this Calculator

Body surface area (BSA) based dosing is a useful way to mitigate patient size variation in medication regimens. Using BSA may help prescriber's dose more optimally to improve drug efficacy, minimize drug toxicity, and account for some changes in pharmacokinetics depending on patient factors.

Dubois Formula for BSA Dosing

Dose = BSA Based Dose * 0.007184 * Height(cm)^0.725 * Weight(kg)^0.425.

Monteller Formula for BSA Dosing

Dose = BSA Based Dose x square root [(Height (cm) x Weight (kg)) / 3600]


Dubois D, Dubois EF.

A formula to estimate the approximate surface area if height and weight be known.

Arch Intern Med. 1916; 17:863-871.

Mosteller RD.

Simplified calculation of body surface area.

NEJM. 1987; 317:1098.

Contributed By:
  • Riley Golby, MD
Legal Notices and Disclaimer

© 2020 QxMD Software Inc., all rights reserved. No part of this service may be reproduced in any way without express written consent of QxMD. This information should not be used for the diagnosis or treatment of any health problem or disease. This information is not intended to replace clinical judgment or guide individual patient care in any manner. Click here for full notice and disclaimer.