Free calculators for travellers. Track your Schengen days, estimate jet lag recovery, calculate tips and more, all updated for 2026.
Planning an international trip involves more than booking flights and hotels. Visa regulations, time zone adjustments, and local tipping customs all affect your experience. Our travel calculators address the practical questions that travellers face. The Schengen Calculator tracks your days in the Schengen Area so you never overstay. The Jet Lag Calculator estimates recovery time based on timezone difference and travel direction. The Tip Calculator handles tipping conventions for any country.
The Schengen Area allows visa-free travellers to stay for a maximum of 90 days within any rolling 180-day window. Tracking this manually is error-prone, especially with multiple trips. Our calculator lets you enter all your travel dates and instantly see how many days you have used and how many remain. It accounts for the rolling window correctly, preventing costly overstays that can result in fines, deportation, or future visa denials.
Jet lag occurs when your circadian rhythm is out of sync with the local time at your destination. The general rule is that it takes approximately one day to adjust for each time zone crossed. However, eastward travel is typically harder to adjust to than westward travel because it requires advancing your internal clock, which is more difficult for most people. Our Jet Lag Calculator provides personalized recovery estimates and science-backed tips for minimizing symptoms.