Travel Planning Calculators

Free online travel planning calculators. Convert time zones, budget trips, calculate tips, plan packing, and more.

Frequently Asked Questions

When is the best time to book flights?

Generally 1-3 months in advance for domestic and 2-6 months for international. Tuesday and Wednesday tend to be cheaper days to fly.

How much should I tip when traveling?

Tipping customs vary by country. In the US: 15-20% at restaurants. In Europe: 5-10% or service included. In Japan: tipping is not customary.

Do I need a visa?

US passport holders can visit 180+ countries without a visa, but some require eTA or visa on arrival. Always check entry requirements before booking.