What so67 is
so67 is a free collection of 2,008 online calculators in 59 categories: money, health, home, science, work and everyday questions. Each calculator applies one documented formula to the numbers you enter and shows that formula, with your numbers filled in, next to the result.
The site is available in 3 languages, English, French and Spanish, with the same calculators, the same formulas and the same results in each.
Who builds it
so67 is built and maintained by a small independent team based in Québec, Canada. Pages are signed “so67 team” rather than by an individual.
One engine for every calculator
Every calculator runs on the same engine. Your inputs are checked against the range in which the formula is valid, converted to the units it expects, then computed. The engine is covered by an automated test suite that compares results with reference values.
See also:How the calculators work
Computed, not typed
Figures on so67 are produced by the calculators, not written by hand. The 24 guides on the blog take their numbers from the calculator they link to, so a guide and its calculator cannot disagree.
What so67 does not do
There are no accounts and no sign-in. The values you type are used to compute the result and are not stored. The site is free because it shows ads; the privacy policy explains what Google Analytics and Google AdSense collect.
See also:Privacy policy
Get in touch
Questions, corrections and suggestions go to [email protected].
See also:Contact