Nine calculators for the questions that come up around a trip. Every figure is either computed in front of you or taken from a published source with the date it was checked. No account, no advertising, and nothing you type leaves your browser.
Why the dates are on every row
Airline baggage rules change quietly and often. Southwest ended free checked bags in May 2025 and raised the fees again in April 2026; JetBlue restored the carry-on to its cheapest fare in September 2024. A page that says "updated recently" at the top cannot tell you whether the row you came for was among the things updated, so each row here carries its own date.
What is deliberately missing
Ryanair and Air France are not in the baggage tables. Both block automated access to their own allowance pages, so their figures could not be read from the source. Filling them in from a third-party blog would mean guessing with someone's gate fee, so they are named as unverified instead.
There is also no currency converter and no hotel search. Both are dominated by services doing something this site cannot do better, and adding them would be padding.
Corrections
If a figure here is wrong, or an airline has changed a rule, I would like to know: bigolronald@gmail.com.