About Skala Convert
Last updated: September 3, 2026
Skala Convert is a free unit conversion site built and maintained by Filipe Oliveira, based in São Paulo, Brazil. It exists for a simple reason: most people who need to convert a measurement need it once, quickly, and want to trust the number without thinking about it.
The site covers nine categories of measurement — length, weight, temperature, area, volume, time, pressure, energy and speed — with a dedicated page for the conversions people actually search for, such as inches to centimeters or psi to bar.
Where our numbers come from
Every conversion factor on this site is a defined value from an international standard, not a rounded approximation. One inch is exactly 0.0254 meters and one pound is exactly 0.45359237 kilograms, as fixed by the international yard and pound agreement and published by NIST in Special Publication 811. SI unit definitions follow the BIPM's SI Brochure.
Where a conversion involves a unit with more than one definition — the US gallon and the imperial gallon, for example — we say which one the page uses and name the source. Where a figure comes from a specific body, such as ICAO for aviation units or UNECE Regulation 39 for vehicle speedometers, that body is named in the text rather than left implicit.
Conversions run entirely in your browser. Nothing you type is sent to a server.
Accuracy and its limits
We check the factors against their published sources and correct errors when we find them. Even so, results are rounded for display, and this site is intended for quick reference and general use.
Do not use these results as the sole basis for engineering, medical, legal, financial or safety-critical decisions. For work where an error would matter, verify against the primary standard and consult a qualified professional.
How the site is funded
Skala Convert is free to use and funded by advertising. We use Google AdSense to serve ads and Google Analytics to understand which pages are useful. Both use cookies, and both stay switched off until you consent through the banner shown on your first visit. The details are in our Privacy Policy.
We do not sell products, we do not ask you to register, and we do not maintain user accounts.
Frequently asked questions
Can I link to a Skala Convert page from my own site?
Yes. Link to any page freely, no permission needed. If you would like to embed a converter rather than link to one, write to us — we are interested in the use case.
How do I report an error or suggest a conversion?
Email contact@skalaconvert.com. For a wrong result, include the page URL and the exact value you entered; that is usually enough for us to reproduce it. Corrections to conversion factors are treated as urgent.
Is there an API?
Not at the moment.
What data do you collect?
The values you type are never transmitted anywhere. Google AdSense and Google Analytics may set cookies and collect usage data once you consent, exactly as described in the Privacy Policy. We hold no accounts and no personal profiles of our own.