Online Tool Store
Dosage by Weight Calculator
Enter body weight and a reference mg/kg amount to calculate a total quantity with unit conversion and safety guidance.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Reference calculation
Weight-based quantity
Reference result
The arithmetic result only - verify all clinical instructions independently.
Calculated total
700 mg
70.0 kg x 10 mg/kg
Weight in kg
70.0 kg
Total in grams
0.700 g
Example shown - replace values only with clinician-confirmed instructions.
How it works
- Enter body weight and a reference mg/kg figure already confirmed by a qualified professional.
- The tool converts pounds to kilograms when needed.
- It multiplies kilograms by the reference figure and shows the arithmetic result in milligrams and grams.
Formula
Total milligrams = weight in kilograms x confirmed mg/kg reference
FAQ
Can this tool tell me what dose to take?
No. It performs arithmetic only. A clinician or the relevant product label must determine whether a medicine is appropriate, the dose, timing, route, and any maximum.
Does this account for age, kidney function, or other medicines?
No. Those factors can matter significantly. Do not use this calculation as a substitute for professional advice.
Is my information stored?
No. Values are calculated in this browser and are not sent to a server.
How we compare
| Feature | Online Tool Store | Manual arithmetic |
|---|---|---|
| No upload or account | Yes | Yes |
| Pounds-to-kilograms conversion | Automatic | Extra step |
| Clinical dose selection | Not provided | Not provided |
Use this only for clear reference arithmetic after clinical guidance, not to make treatment decisions.