Health

Dose by Body Surface Area Calculator (BSA = √(H·W/3600))

Calculate an individualized drug dose from body surface area using the Mosteller formula: BSA (m²) = √(Height(cm) · Weight(kg) / 3600), then Dose = Drug_dose_per_m² × BSA. BSA is the recommended normalization for many cytotoxic and pediatric regimens because drug clearance scales more linearly with BSA than with body weight across patients of different sizes. Also reports the standard adult dose at the reference adult BSA of 1.73 m² for comparison. Valid only for linear drug clearance — BSA dosing does not apply to saturable (Michaelis-Menten) pathways. Not medical advice.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/dose-by-body-surface-area' \
  -H 'Content-Type: application/json' \
  -d '{"height":170,"weight":70,"dosePerM2":200,"decimalPlaces":4}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/dose-by-body-surface-area

Parameters

Name	Type	Required	Description
height	number	Yes	Body height in centimeters. Must be positive.
weight	number	Yes	Body weight in kilograms. Must be positive.
dosePerM2	number	Yes	Drug dose per square meter of BSA. Must be positive.
decimalPlaces	number	No	—

Response format

JSON result

JSON

{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-dose-by-body-surface-area": {
      "name": "dose-by-body-surface-area",
      "description": "Calculate an individualized drug dose from body surface area using the Mosteller formula: BSA (m²) = √(Height(cm) · Weight(kg) / 3600), then Dose = Drug_dose_per_m² × BSA. BSA is the recommended normalization for many cytotoxic and pediatric regimens because drug clearance scales more linearly with BSA than with body weight across patients of different sizes. Also reports the standard adult dose at the reference adult BSA of 1.73 m² for comparison. Valid only for linear drug clearance — BSA dosing does not apply to saturable (Michaelis-Menten) pathways. Not medical advice.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=dose-by-body-surface-area",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "dose-by-body-surface-area",
    "arguments": {
  "height": 170,
  "weight": 70,
  "dosePerM2": 200,
  "decimalPlaces": 4
}
  }
}

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Dose by Body Surface Area Calculator (BSA = √(H·W/3600))

json· JSON resultOpen tool

Name

Type

Required

Description

height

number

Yes

Body height in centimeters. Must be positive.

weight

number

Yes

Body weight in kilograms. Must be positive.

dosePerM2

number

Yes

Drug dose per square meter of BSA. Must be positive.

decimalPlaces

number

—

{ "mcpServers": { "elysiatools-dose-by-body-surface-area": { "name": "dose-by-body-surface-area", "description": "Calculate an individualized drug dose from body surface area using the Mosteller formula: BSA (m²) = √(Height(cm) · Weight(kg) / 3600), then Dose = Drug_dose_per_m² × BSA. BSA is the recommended normalization for many cytotoxic and pediatric regimens because drug clearance scales more linearly with BSA than with body weight across patients of different sizes. Also reports the standard adult dose at the reference adult BSA of 1.73 m² for comparison. Valid only for linear drug clearance — BSA dosing does not apply to saturable (Michaelis-Menten) pathways. Not medical advice.", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=dose-by-body-surface-area", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "dose-by-body-surface-area", "arguments": { "height": 170, "weight": 70, "dosePerM2": 200, "decimalPlaces": 4 } } }