Unit Converter

Convert between any units instantly. Free, no signup.

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Length
Weight
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Temperature
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Volume
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Speed
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Data

Use via API

POST /api/convert/units {"value": 100, "from_unit": "km", "to_unit": "mi"} curl -X POST https://toolpipe.dev/api/convert/units \ -H "Content-Type: application/json" \ -d '{"value":100,"from_unit":"km","to_unit":"mi"}'

Free: 100 calls/day. Get Pro access for 10,000 calls/day.

About Unit Converter

Convert between all common units of measurement. Supports length (meters, feet, inches, kilometers, miles, centimeters, millimeters, yards), weight (kilograms, pounds, ounces, grams, stone), temperature (Celsius, Fahrenheit, Kelvin), volume (liters, gallons, milliliters, fluid ounces, cups), speed (mph, kph, m/s), and data (bytes, KB, MB, GB, TB).

API for Developers

Access this converter via REST API. Perfect for apps, scripts, and AI agents that need unit conversion. Available as an MCP tool for Claude, GPT, and other AI agents.

Get a free API key for 100+ developer endpoints:
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