Printable reference
Pediatric dosage calculations worksheet
Practice kg conversion, mg/kg dosing, safe ranges, and concentration math. Work examples manually, then verify the setup with an instructor or approved tool.
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Safety disclaimer
- Educational practice only; not medical advice or a medication order.
- Do not use worksheet examples for real patient dosing decisions.
- Always verify actual medication, concentration, dose limits, allergies, rounding, and local policy with licensed clinical guidance.
Final check before submitting
- Weight converted to kg
- Order checked as per-dose vs per-day
- Safe range and maximum dose checked
- Concentration, units, and rounding verified
Quick formula reminders
kg
lb ÷ 2.2 = kg
mg dose
kg × mg/kg = mg
mL dose
ordered mg ÷ concentration in mg/mL = mL
Round only after the unit conversion, safe-range check, and concentration setup are correct. Follow instructor direction, device markings, and local policy.
Practice problems
| # | Problem | Work space |
|---|---|---|
| 1 | 44 lb child, 10 mg/kg per dose, concentration 200 mg/5 mL. Find mL per dose. | |
| 2 | 33 lb child, 15 mg/kg per dose. Find mg per dose after converting to kg. | |
| 3 | 22 kg child, safe range 20–40 mg/kg/day divided BID. Find daily range and per-dose range. | |
| 4 | 18 kg child needs 8 mg/kg per dose. The concentration is 160 mg/5 mL. Find mL per dose. | |
| 5 | 55 lb child, order is 30 mg/kg/day divided TID. Find mg per dose. |
Answer key — reference only
- 44 lb ÷ 2.2 = 20 kg; 20 × 10 = 200 mg; 200 mg/5 mL = 40 mg/mL; 200 mg ÷ 40 mg/mL = 5 mL.
- 33 lb ÷ 2.2 = 15 kg; 15 × 15 = 225 mg per dose.
- Daily range: 440–880 mg/day; BID per-dose range: 220–440 mg per dose.
- 18 × 8 = 144 mg; 160 mg/5 mL = 32 mg/mL; 144 ÷ 32 = 4.5 mL.
- 55 lb ÷ 2.2 = 25 kg; 25 × 30 = 750 mg/day; divided TID = 250 mg per dose.