Practical tools
Last reviewed: April 25, 2026
This section gathers small interactive utilities that come up again and again when reading about the United States or moving there: a quick distance converter and a searchable list of states and capitals. Both tools work offline once the page is loaded, do not require an account, and store nothing about you.
The interactive widgets currently live on the French side of the site, but their content is universal — abbreviations, capitals, and conversion factors are the same in any language. Each link below opens the working tool.
U.S. states, capitals & abbreviations
The 50 states with their capitals and official two-letter postal codes (CA, NY, TX, etc.). Useful for filling out forms, reading addresses, and understanding ZIP-code prefixes.
Open the toolMiles ↔ kilometers converter
Convert in either direction. The factor (1 mile = 1.60934 km) shows up the moment you start typing distances in road signs, weather reports, or running apps.
Open the toolOther useful references on this site
- What is the United States? — federalism, the 50 states, the Constitution.
- How the U.S. government works — three branches, checks and balances.
- Moving to the U.S. — visa categories and practical timeline.
- Working in the U.S. — labor market, contracts, salaries.
- Studying in the U.S. — admissions, costs, student visas.
Authoritative external references
For canonical data and official forms:
- U.S. Census Bureau — population, demographics, household statistics.
- USA.gov — directory of federal services and agencies.
- USCIS — visas, green card, naturalization.
- U.S. Department of State (Travel) — visa applications from outside the U.S., passports, travel advisories.
- IRS — federal taxes.
- Bureau of Labor Statistics — wages, employment, occupational data.
If you have a tool idea that would fit here (and that we can build without collecting any data about you), email contact@americain.org.