Math & Numbers
Convert between ratios and decibels (10·log power, 20·log amplitude), and across absolute units dBm/dBW/dBV/dBu/dBFS/SIL
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/decibel-calculator' \
-H 'Content-Type: application/json' \
-d '{"mode":"ratio2db","quantityType":"power","measured":100,"reference":1,"dbInput":0,"absUnit":"dBm","absValue":0}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/decibel-calculator| Name | Type | Required | Description |
|---|---|---|---|
| mode | select | No | — |
| quantityType | select | No | — |
| measured | number | No | — |
| reference | number | No | — |
| dbInput | number | No | — |
| absUnit |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-decibel-calculator": {
"name": "decibel-calculator",
"description": "Convert between ratios and decibels (10·log power, 20·log amplitude), and across absolute units dBm/dBW/dBV/dBu/dBFS/SIL",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=decibel-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "decibel-calculator",
"arguments": {
"mode": "ratio2db",
"quantityType": "power",
"measured": 100,
"reference": 1,
"dbInput": 0,
"absUnit": "dBm",
"absValue": 0
}
}
}Questions or issues? Contact [email protected]
| select |
| No |
| — |
| absValue | number | No | — |
HTML result
{
"result": "<div>Processed HTML content</div>",
"error": "Error message (optional)",
"message": "Notification message (optional)",
"metadata": {
"key": "value"
}
}