Weight Determines Almost Everything in the EU Drone Framework

Under EU Regulation 2019/947 as implemented in Germany, your drone's maximum take-off mass (MTOM) is the primary factor determining which Open Category subcategory applies, what competency certificates you need, and where you can fly. The thresholds — 250g, 900g, 4kg, and 25kg — each trigger different requirements for registration, distance rules, and operational limitations. The challenge is that MTOM includes everything: airframe, battery, payload, and accessories. A drone marketed as "under 250g" may cross that threshold with a heavier battery or additional sensors. The EU framework uses class markings (C0-C4) tied to weight categories, adding another layer of complexity.

MmowW's Weight Category Calculator Gives You Precise Answers

The tool determines your drone's EU weight category based on total take-off configuration. Enter components individually and see which EU/German category applies. No signup required. No personal data collected.

How It Works — Three Steps

Step 1: Enter base weight. Drone airframe with standard battery. Step 2: Add payload and accessories. Cameras, sensors, prop guards, lights, extended batteries. Step 3: Receive classification. EU weight category, applicable subcategory, and German-specific requirements.

Key Benefits

EU category clarity. Know exactly which Open Category subcategory applies to your configured drone. Competency awareness. Weight category determines whether you need A1/A3 Fernpiloten-Zeugnis or A2 EU-Kompetenznachweis. Payload planning. Check multiple configurations to ensure all remain within desired categories. Registration clarity. The 250g threshold for registration is precisely assessed.

Real Scenarios

Scenario 1: The borderline Mini drone. Adding a lens filter and prop guards pushes a 249g drone over 250g — triggering additional requirements. Scenario 2: The multi-sensor surveyor. An operator swaps between LiDAR (400g) and thermal (200g) sensors. The calculator confirms both configurations stay within the same EU category. Scenario 3: The custom FPV builder. Component-by-component tracking ensures the final build falls within the intended category.

FAQ

Q: What weight does the EU regulate?

A: Maximum take-off mass (MTOM) — drone plus battery plus all payload and accessories during flight.

Q: Do EU class markings (C0-C4) correspond exactly to weight categories?

A: Class markings include weight limits among other criteria. C0 is under 250g, C1 under 900g, C2 under 4kg, etc. The calculator maps your weight to the applicable class.

Q: What about legacy drones without class markings?

A: The tool explains transitional provisions for legacy drones, including weight-based operating restrictions during the transition period.

Try It Now — Free, No Signup Required

Check your weight category now

What's Next?

Build on weight classification with the Registration Requirement Checker or the Pre-flight Checklist Generator. MmowW exists to make drone compliance straightforward. Every tool is free. Loved for Safety. Ready for complete compliance management? Start your 14-day free trial — €6.08/month, less than a coffee. Explore MmowW Drone SaaS