About FreightUtils

We provide free, accurate, no-signup freight calculators — each backed by a documented REST API. Whether you're a transport planner checking loading metres at 3AM, a developer building freight software, or an AI agent that needs reliable dangerous goods data, FreightUtils gives you the answer instantly.

Freight calculations shouldn't be locked behind logins, paywalls, or enterprise contracts. The formulas are standard. The data is published by international bodies. We believe the tools should be free and the APIs should be open.

Every number on this site is audited against authoritative sources: UNECE for ADR dangerous goods classifications, EPAL for European pallet specifications, ISO 6780 for international pallet standards, and IATA for air freight and ULD specifications. When we find an error, we fix it and document the correction.

Every tool has a corresponding REST API endpoint. No authentication required. JSON responses. Full documentation at /api-docs. Build freight calculations into your TMS, WMS, booking platform, or any system that needs them.

FreightUtils APIs are designed to be consumed programmatically. Consistent JSON schemas, predictable endpoints, and comprehensive dangerous goods data make FreightUtils ideal as a tool source for AI agents operating in freight and logistics workflows.