Anticoagulant Dose Calculator
Enter patient weight and select an anticoagulant and indication to calculate weight-based dosing for heparin (UFH), enoxaparin (LMWH), or fondaparinux.
Patient & Drug Selection
For educational reference only. Always verify with institutional protocols and a licensed prescriber before clinical use.
Enter weight, select a drug and indication, then click Calculate.
Dosing Result
Clinical Notes
Quick Reference — All Indications
| Indication | Dose | Route / Freq |
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Summary
Enter patient weight and select an anticoagulant and indication to calculate weight-based dosing for heparin (UFH), enoxaparin (LMWH), or fondaparinux.
How it works
- Enter the patient weight in kilograms or pounds (auto-converted).
- Select the anticoagulant: Heparin UFH, Enoxaparin, or Fondaparinux.
- Choose the clinical indication (e.g., VTE treatment, prophylaxis, ACS, bridging).
- The calculator applies standard weight-based dosing formulas from clinical guidelines.
- Results display the calculated dose(s), dosing frequency, and any weight-based caps.
- A disclaimer reminds users to confirm with institutional protocols before clinical use.
Use cases
- Calculate enoxaparin dose for a patient with deep vein thrombosis (DVT).
- Determine heparin bolus and infusion rate for VTE treatment by weight.
- Look up fondaparinux prophylactic dose for a post-operative patient.
- Verify enoxaparin dose adjustment for obesity (>100 kg) or renal impairment.
- Reference bridging anticoagulation doses during perioperative management.
- Support pharmacology education and clinical training scenarios.
- Cross-check a written order against standard weight-based dosing tables.
- Calculate ACS heparin dosing for unstable angina or NSTEMI management.
Frequently Asked Questions
Last updated: 2026-07-01 ·
Reviewed by Nham Vu