Dose by Weight Calculator
Single and daily dose from mg/kg – checks against a maximum.
Always follow the prescription and the advice of your doctor or pharmacist.
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Enter your values.
- 2See the result update instantly as you type.
- 3Change any value to compare scenarios.
About this tool
Dose by Weight Calculator: Single and daily dose from mg/kg – checks against a maximum. Type your numbers and the result is calculated instantly — no button to press, nothing to install. All math runs locally in your browser, so the values you enter are never sent anywhere.
Example
| Input | |
|---|---|
| Weight (kg) | 75 |
| Prescribed dose (mg per kg) | 10 |
| Doses per day | 3 |
| Concentration (mg per ml, optional) | 40 |
| Max single dose (mg, optional) | — |
| Result | |
| Single dose | 750 mg |
| Daily dose | 2,250 mg |
| Volume per dose | 18.75 ml |
How do I use the Dose by Weight Calculator?
Enter your values. See the result update instantly as you type. Change any value to compare scenarios.
Is the Dose by Weight Calculator free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.