convert_speed
Convert speed measurements between 22 units including km/h, mph, knots, meters per second, and speed of light. Enter value, source unit, and target unit for accurate conversion.
Instructions
Convert speed between units.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| value | Yes | Speed value to convert | |
| from_unit | Yes | Source unit | |
| to_unit | Yes | Target unit |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/unit_converter_mcp/server.py:181-195 (handler)The MCP tool handler for 'convert_speed', decorated with @app.tool(). It validates inputs using SPEED_UNIT, calls convert_speed_tool for conversion, and returns a formatted response dictionary.
@app.tool() def convert_speed( value: Annotated[float, Field(description="Speed value to convert")], from_unit: Annotated[SPEED_UNIT, Field(description="Source unit")], to_unit: Annotated[SPEED_UNIT, Field(description="Target unit")], ) -> dict: """Convert speed between units.""" converted_value = convert_speed_tool(value, from_unit, to_unit) return { "original_value": value, "original_unit": from_unit, "converted_value": converted_value, "converted_unit": to_unit, "conversion_type": "speed", } - Pydantic Literal type defining all supported speed units for input validation in the convert_speed tool.
SPEED_UNIT = Literal[ "centimeters per minute", "centimeters per second", "feet per hour", "feet per minute", "feet per second", "inches per minute", "inches per second", "kilometers per hour", "kilometers per second", "knots", "Mach (ISA sea level)", "speed of sound", "meters per hour", "meters per minute", "meters per second", "miles per hour", "miles per minute", "miles per second", "yards per hour", "yards per minute", "yards per second", "speed of light", ] - Core helper function implementing the speed unit conversion logic by normalizing to meters per second and back.
def convert_speed_tool( value: float, from_unit: SPEED_UNIT, to_unit: SPEED_UNIT, ) -> float: """Convert speed between units.""" # Convert to meters per second first to_meters_per_second = { "centimeters per minute": 0.000166666667, "centimeters per second": 0.01, "feet per hour": 8.4666836e-05, "feet per minute": 0.00508, "feet per second": 0.3048, "inches per minute": 0.00042333418, "inches per second": 0.0254, "kilometers per hour": 0.277777777778, "kilometers per second": 1000.0, "knots": 0.514444444444, "Mach (ISA sea level)": 340.2933, # 15 °C, 101.3 kPa "speed of sound": 343.0, # dry air, ~1 atm, room temp "meters per hour": 0.000277777778, "meters per minute": 0.016666666667, "meters per second": 1.0, "miles per hour": 0.44704, "miles per minute": 26.8224, "miles per second": 1609.344, "yards per hour": 0.000254000508, "yards per minute": 0.01524, "yards per second": 0.9144, "speed of light": 299_792_458.0, # exact physical constant } meters_per_second = value * to_meters_per_second[from_unit] return meters_per_second / to_meters_per_second[to_unit]