Find complementary access
Two similarly ranked passports can still differ across dozens of destinations. The detailed comparison matters more than the headline score.
What a second passport changes.
Measure the travel-access benefit of two or more passports without confusing mobility with the wider legal consequences of dual citizenship.
Combined passport strength
A destination-by-destination advantage
A second passport helps where it provides easier entry than the first. The calculator checks every destination and keeps the best available status: citizenship, visa-free, ETA, visa on arrival, eVisa, visa required, or entry restricted.
The resulting mobility score counts destinations reachable without prior visa approval. Its rank equivalent shows where that combined score would sit in the current individual passport index.
Keep the claim practical
This tool measures entry access only. It does not evaluate residence rights, work rights, tax treatment, military obligations, or consular protection.
Verify before travel
Visa rules can change and personal circumstances matter. Confirm the relevant passport and entry requirements with official authorities.