Practical calculators
Day-counting tools for tax residency, Schengen, and US states.
Practical calculators for residency rules, Schengen travel limits, and US state-tax exposure. Use them once. If you find yourself wanting to keep doing this every time you travel, that's the case for Chrono.
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Schengen Calculator & Planner
Three modes: current status, plan a trip, and max stay. Rolling 180-day window across all 29 Schengen countries.
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New York statutory residency risk checker
184 days + permanent place of abode + ties. A practical signal, not a legal determination.
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Can my old state still tax me?
US state tax exposure after moving. Domicile, day count, ties, and consistency over time.
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Country-by-country tax residency exposure
How the UK, Spain, Portugal, France, and Germany evaluate residency — the actual frameworks, not a generic 183-day count.
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Travel footprint
Visualize where you've been on the world map — and how your time is distributed across countries and continents.
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Let Chrono count for you
Scan to install. Chrono starts tracking immediately.
Takes 10 seconds
Prefer to install manually?