Frequently asked questions
Common questions about JoseFitani, our tools, content and policies.
Is JoseFitani really free?
Yes. Every tool and article on JoseFitani is free to use, without registration or paywalls.
Do I need to create an account?
No. All tools work instantly in your browser.
How accurate are the calculators?
Distance calculators use the Haversine formula on a spherical Earth (R = 6,371 km), accurate to ~0.3%. Coordinate conversions use standard formulas accurate to machine precision.
Do you track my usage?
We do not require sign-up, and the calculators run entirely in your browser — what you type into a tool never leaves your device.
Can I use these tools offline?
Yes, all calculators work in your browser. Only tools that explicitly query external APIs require connectivity.
How do you make money?
Through non-intrusive advertising (Google AdSense).
What coordinate datum is used?
All tools use WGS84 (EPSG:4326) by default, the same datum used by GPS.
Are the articles AI-generated?
Our articles are drafted with editorial assistance and reviewed by the JoseFitani editorial team before publishing.
Can I suggest a new tool?
Yes — email us via the contact page. We prioritize tools requested by real users.
Do you support other datums (NAD27, NAD83, ETRS89)?
Currently only WGS84 is supported. Datum conversion is on our roadmap.