About thesawad.com
What this site is
thesawad.com is a set of free calculators from the TheSawad cookbook kitchen: kitchen conversions, cooking times and ratios, calories and protein, and restaurant meal builders. Every result shows the formula that made it and the sources behind the numbers, so you can check the working yourself.
How the numbers are checked
Each calculator runs on a small piece of code with its own tests. The tests compare the code's answers with examples worked out by hand from the published source, such as the Mifflin-St Jeor equation, USDA FoodData Central cup weights or the USA Rice cooking chart. A page goes live only when every test passes. Sources are primary: government agencies, standards bodies and the journal papers named on each page. Every page shows the date it was last reviewed.
What we do not do
We do not put a person's name or claimed credentials on the pages. We do not give medical advice; the calorie, protein and steps tools are general information, and a clinician who knows you is the right person to ask about your own diet. We do not link to other calculator sites. There are no ads at launch.
The cookbooks
The site is run by the same small kitchen that sells cookbooks as PDFs on Etsy. Where a calculator connects to one of the books, the page says so in one block at the end. See the cookbooks on Etsy.