Heparin and LMWH Dosing Calculator

Calculates unfractionated heparin (UFH) bolus and infusion doses, LMWH (enoxaparin, dalteparin) therapeutic and prophylactic dosing, and aPTT-based dose adjustments.

Weight *

Indication *

Agent *

Renal Function (CrCl)

mL/min

Required for LMWH dosing adjustments

aPTT

seconds

For UFH dose adjustments; therapeutic range typically 1.5-2.5x control

Enter values and click Calculate to see results