Roof Rack & Box Calculator - Kayak/Canoe Rack
Calculate the cost of roof bars, roof box, bike rack and the impact on fuel consumption.
⚠️ WARNING: This tool provides estimates for INDICATIVE purposes only. Results are based on market averages and simplified formulas. Actual prices, costs, and values may vary SIGNIFICANTLY depending on the exact model, vehicle condition, your region, the dealer, and market conditions. For any purchase or sale decision, ALWAYS consult an automotive professional or request multiple quotes.
Frequently Asked Questions
Do roof bars increase fuel consumption?
Yes, expect +5 to 10% consumption with bars alone, +15 to 25% with a roof box. Remove them when not in use.
What's the maximum roof load?
Maximum load is indicated in the manual (usually 50-100kg). It includes bars + box + contents.
Roof or hitch bike rack?
Hitch bike rack is more practical (easy loading, less aero impact) but requires a hitch.
Are the bars universal?
No, they're vehicle-specific. Check the mounting type: roof rails, fixing points, rain gutter.
What roof box volume to choose?
320-420L for 2-3 people, 450-600L for 4-5 people. Bigger isn't always better (weight and garage height).