Math & Numbers

Lever Mechanical Advantage Calculator

Calculate the mechanical advantage of a lever and its output force. MA = L_in / L_out, and by moment balance F_out = F_in · MA. MA > 1 saves force; MA < 1 saves distance.

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/lever-mechanical-advantage' \
  -H 'Content-Type: application/json' \
  -d '{"inputArm":2,"outputArm":0.5,"inputForce":100,"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/lever-mechanical-advantage

Parameters

Name	Type	Required	Description
inputArm	number	Yes	—
outputArm	number	Yes	—
inputForce	number	No	Optional. If provided, the output force F_out = F_in × MA.
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-lever-mechanical-advantage": {
      "name": "lever-mechanical-advantage",
      "description": "Calculate the mechanical advantage of a lever and its output force. MA = L_in / L_out, and by moment balance F_out = F_in · MA. MA > 1 saves force; MA < 1 saves distance.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=lever-mechanical-advantage",
      "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": "lever-mechanical-advantage",
    "arguments": {
  "inputArm": 2,
  "outputArm": 0.5,
  "inputForce": 100,
  "decimalPlaces": 4
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

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Name

Type

Required

Description

inputArm

number

Yes

—

outputArm

number

Yes

—

inputForce

number

Optional. If provided, the output force F_out = F_in × MA.

decimalPlaces

number

—

{ "mcpServers": { "elysiatools-lever-mechanical-advantage": { "name": "lever-mechanical-advantage", "description": "Calculate the mechanical advantage of a lever and its output force. MA = L_in / L_out, and by moment balance F_out = F_in · MA. MA > 1 saves force; MA < 1 saves distance.", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=lever-mechanical-advantage", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "lever-mechanical-advantage", "arguments": { "inputArm": 2, "outputArm": 0.5, "inputForce": 100, "decimalPlaces": 4 } } }