What We Offer
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.
Why Open?
Every tool has a free REST API with generous rate limits — no signup needed for quick lookups. Free API keys available for regular use, with Pro tiers for production integrations. No vendor lock-in. Use the website, call the API, or build it into your own systems.
The data comes from official international standards — UNECE, WCO, ICC, IATA. We make it accessible, structured, and ready to use. Whether you're a transport planner checking a load at 3am or a developer wiring freight calculations into a TMS, the answer is the same: just use it.
FreightUtils is available as a Model Context Protocol (MCP) server — the first freight-specific tool server for AI agents, listed on the Official MCP Registry. All tools including the composite Shipment Summary, sea freight W/M, and mode selectors are accessible via npx freightutils-mcp or the remote endpoint.
Data Integrity
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.
Why FreightUtils
Every dataset sourced from official publications (UNECE, WCO, ICC, IATA)
Built for freight workflows, not generic unit conversion
Open REST APIs — no auth, no paywall, no vendor lock-in
Data verified and dated — you always know what edition you're using
Data Sources & Methodology
Licensed from Labeline.com (ECE/TRANS/352). Next edition: ADR 2027.
UN Comtrade HS 2022 (PDDL). 21 sections, 97 chapters.
Public sources, cross-referenced. 390 verified cargo AWB prefixes.
ICC INCOTERMS 2020 rules with full responsibility breakdowns.
Ports, airports, rail terminals, inland depots. UNECE 2024-2 (PDDL).
GOV.UK Trade Tariff API. Open Government Licence v3.
ISO 668 + ISO 1496 standard dimensions and capacities.
EPAL EUR pallets, ISO 6780 international, IATA ULD specs.
For Developers
18 tools across 19 REST API endpoints. No signup required for casual use — 25 requests/day with no API key. Register a free key for 100 requests/day, or contact us for Pro access (50,000 requests/month). Includes a composite Shipment Summary endpoint that chains CBM, chargeable weight, ADR compliance, and UK duty estimation into one call. JSON responses. Full documentation at /api-docs. Build freight calculations into your TMS, WMS, booking platform, or any system that needs them.
POST /api/shipment/summary
{ "mode": "road", "items": [...] }
# Freight calculators
GET /api/ldm?pallet=euro&qty=10
GET /api/cbm?l=120&w=80&h=100
GET /api/chargeable-weight?l=120&w=80&h=100&gw=500
GET /api/pallet?pl=120&pw=80&pmh=220&bl=40&bw=30&bh=25
GET /api/containers?type=40ft-high-cube
GET /api/convert?value=100&from=kg&to=lbs
POST /api/consignment
{ "mode": "air", "items": [...] }
# Reference data & compliance
GET /api/adr?un=1203
GET /api/adr-calculator?un=1203&qty=200
POST /api/adr/lq-check
{ "mode": "lq", "items": [{ "un_number": "1203", "quantity": 0.5, "unit": "L" }] }
GET /api/hs?q=coffee
GET /api/incoterms?code=FOB
POST /api/duty
{ "commodity_code": "847989", "origin_country": "CN", "customs_value": 10000 }
GET /api/airlines?prefix=176
GET /api/unlocode?q=rotterdam
GET /api/uld?type=AKE
GET /api/vehicles?category=van
For AI Agents
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.
⚠ Important Disclaimer
FreightUtils is a reference and calculation tool only. It does not replace professional classification by a certified Dangerous Goods Safety Adviser (DGSA), licensed customs broker, or qualified compliance officer.
ADR data is provided for reference purposes. The shipper and carrier assume all legal responsibility for dangerous goods classification, documentation, and transport compliance.
HS code data is for reference only. For official customs classification, consult your national customs authority or a licensed broker.
All calculations should be independently verified before use in commercial operations.
Get in Touch
Questions, corrections, or integration help: contact@freightutils.com