Medication Dosage Calculator 💊

Use the industry-standard **D/H x V** formula to find the precise **Volume or Amount to Administer** (mL, tablet, units).

1. Enter Dosage Parameters (D/H x V)

Desired Dose (Dose Ordered) (D)

The amount the physician ordered.

Dose on Hand (Stock Concentration Amount) (H)

The amount available per unit/volume.

Vehicle/Volume (Stock Volume) (V)

The form the dose comes in (e.g., 5 mL or 1 Tablet).

Dosage Administration Result

Amount to Administer

Calculation Check

Metric	Value
Stock Concentration
D/H Ratio
Desired Dose for Check
Conversion Warning	No warning.

⚠️ **CRITICAL SAFETY NOTE:** Dosage calculations must always be double-checked by a second licensed practitioner (nurse, pharmacist, or physician) before administration.

The Core Dosage Calculation Formula

The calculation is based on the universal "Dose Ordered over Dose on Hand multiplied by the Vehicle/Volume" rule, often shortened to **D/H x V**.

Amount to Administer = (Dose Ordered / Dose on Hand) × Stock Volume

Where:

**Dose Ordered (D):** The therapeutic amount prescribed (e.g., 500 mg).
**Dose on Hand (H):** The amount of medication in the stock container (e.g., 250 mg).
**Stock Volume (V):** The volume or unit the Dose on Hand is dissolved in or contained in (e.g., 5 mL or 1 tablet).