Use this Augmentin pediatric dose calculator to estimate a weight-based dose using the amoxicillin component of amoxicillin/clavulanate. It is designed for educational use and quick double-checking, not as a substitute for clinical judgment.
How this augmentin pediatric dose calculator works
Augmentin contains two ingredients: amoxicillin and clavulanate. Pediatric dosing is typically selected based on the amoxicillin target in mg/kg/day, then split into two or three doses per day depending on regimen. The calculator then converts the per-dose amoxicillin amount into milliliters of the chosen suspension.
Key inputs used
- Weight (kg or lb)
- Target mg/kg/day for the clinical scenario
- Dosing frequency (every 12h or every 8h)
- Suspension concentration (amoxicillin/clavulanate per 5 mL)
Why formulation selection matters
Different suspensions have different amoxicillin-to-clavulanate ratios. Higher-clavulanate products can increase GI side effects when used at high amoxicillin targets. Many clinicians prefer lower-clavulanate ratios for high-dose regimens.
General pediatric reference ranges (amoxicillin component)
- Mild/moderate infections: commonly around 20–25 mg/kg/day (q8h or q12h depending approach)
- More severe infections: commonly around 40–45 mg/kg/day
- High-dose indications (selected ENT/respiratory contexts): up to 80–90 mg/kg/day
Exact dosing and duration vary by age, diagnosis, renal function, local resistance patterns, and institutional protocol.
Safety checks to always perform
Before treatment
- Confirm penicillin allergy history
- Review kidney function and hydration status
- Confirm indication (viral vs bacterial)
When writing or checking the prescription
- Verify dose is based on current weight
- Ensure concentration and mL dose match exactly
- Use an oral syringe (not household teaspoons)
- Double-check total daily clavulanate exposure
Frequently asked questions
Is this calculator a prescription tool?
No. It is a dosing aid for estimation and cross-checking. Final decisions belong to a licensed clinician.
Should I use mg/kg/day from this page exactly?
Only if it matches your local guideline and clinician recommendation. Dose targets differ by diagnosis and patient factors.
What if the child is 40 kg or more?
Many patients at that weight transition toward adult dosing strategies. This calculator flags that scenario for manual review.