Pediatric Dose Calculator
Dose = kg × mg/kg, capped by optional max; daily = dose × frequency. Click any i for detail.
Weight & regimen
Weight (kg)
i
Weight
Patient weight in kilograms. |
|
|---|---|
Dose (mg/kg)
i
mg/kg
Ordered mg per kg per administration. |
|
Doses per day
i
Freq
Administrations per day. |
|
Max single dose (mg)
i
Max
Optional cap; 0 = no cap. |
How to use this calculator
- Enter weight in kg.
- Enter mg/kg per dose.
- Set doses per day.
- Optionally cap with a max single dose.
Results explained
Weight-based dosing multiplies kg by mg/kg. Many drugs also list a maximum single dose — when set, the calculated dose is capped. Always follow the prescribed regimen and reference.
Quick reference: ped dose
dose = min(kg×mg/kg, maxDose?); daily = dose × n.
| Item | Detail |
|---|---|
| 20 kg × 10 mg/kg | 200 mg/dose |
| 2×/day | 400 mg/day |
| Max cap | Limits single dose |
| lb → kg | ÷ 2.2 first |
Not a prescribing tool — verify with the order and drug reference.
How the estimate is built
dose = weight×mgPerKg; if maxDose>0: dose = min(dose, maxDose); daily = dose×dosesPerDay.
Example scenario
20 kg × 10 mg/kg BID → 200 mg/dose, 400 mg/day.
FAQ
Pounds?
Convert to kg first (lb ÷ 2.2).
BSA dosing?
Not on this page.
Liquid concentrations?
Convert mg to mL using the product strength separately.
Adult max?
Enter the labeled max in the cap field when relevant.