Resource Centre

Shipping calculators, packaging guides, carrier comparisons, API documentation, and everything else you need to ship smarter.

Shipping Calculator

Compare real-time rates from DHL, FedEx, UPS, and Royal Mail. No login required — get instant quotes in seconds.

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Packaging Guide

Box selection, cushioning techniques, sealing methods, and special guidance for fragile, electronics, and hazardous goods.

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Carrier Comparison

Side-by-side comparison of DHL, FedEx, UPS, Royal Mail, DPD, and GLS — speed, price, weight limits, and insurance.

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Browse Resources

Shipping Guides

Complete Packaging Guide

Learn how to properly package different types of items for safe shipping, including fragile goods, electronics, and documents. Covers box selection, cushioning, and sealing.

Web GuideUpdated June 2026

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International Shipping Requirements

Navigate customs documentation, prohibited items, and country-specific requirements for international shipments. Includes post-Brexit UK–EU guidance.

Web GuideUpdated June 2026

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Prohibited & Restricted Items

Full list of items that cannot be shipped (firearms, narcotics, explosives) and items that require special documentation or carrier approval.

ReferenceUpdated June 2026

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Carrier Comparison Table

Compare DHL, FedEx, UPS, Royal Mail, DPD, and GLS side by side — transit times, weight limits, tracking quality, insurance, and price tiers.

ComparisonUpdated June 2026

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Tools & Calculators

Shipping Rate Calculator

Enter your route, package type, dimensions, and weight to see instant quotes from multiple carriers. Add optional services like insurance and signature.

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Transit Time Estimator

Estimate delivery times between common UK and EU destinations for express and standard services. Includes notes on what causes delays.

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Customs & Duty Guide

Learn how import duties, VAT, de minimis thresholds, and post-Brexit rules affect your international shipments.

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Dimensional Weight Reference

Carriers charge by the greater of actual weight or dimensional weight (L×W×H÷5,000 for cm). Example: a 40×30×20 cm box = 4.8 kg dim. weight regardless of actual weight.

Dim. Weight (kg) = L × W × H ÷ 5,000

API Documentation

OctaveLogistics REST API

Integrate shipping quotes, booking, and tracking directly into your website or back-office system. Our REST API supports JSON responses and uses Bearer token authentication.

POST/api/shipping/quotesGet carrier quotes for a route and package

POST/api/ordersCreate a confirmed shipping order

GET/api/tracking?number={id}Retrieve tracking events for a shipment

GET/api/servicesList available add-on services and prices

Full documentation and authentication details are available for Enterprise customers. Contact us to request API access.

Templates & Forms

Commercial Invoice Template

Correctly structured commercial invoice meeting HMRC and EU customs requirements. Includes all required fields for international shipments.

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Packing List Template

Standardised packing list format accepted by all major carriers. Use for multi-item shipments to speed up customs clearance.

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Damage Report Guide

What information to capture and how to file a claim for damaged or lost parcels. Includes photo checklist.

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Quick Links

Track Package Shipping Calculator Create Shipment Shipping Guide Contact Support Help Centre

Need Custom Solutions?

Our team can help you develop custom logistics solutions, volume discounts, API integrations, and dedicated account management.

Enterprise Solutions

Latest Updates

Carrier Comparison Updated

New DPD and GLS routes added to comparison table

Jun 10, 2026

Post-Brexit Customs Guide

Updated UK–EU shipping requirements and TCA guidance

Jun 5, 2026

Calculator Improvements

Public calculator now available — no login required for quotes

Jun 1, 2026