The people behind every formula on Kromo Tools.
We're a small team that treats every calculator like a published fact, not a guess — researched against recognised health and science authorities, then checked before it ever reaches you.
How a calculator gets built
Every tool on Kromo Tools — especially health calculators — goes through the same four checkpoints before it goes live.
Research
We start from recognised authorities — WHO guidelines, the U.S. National Academies of Sciences, Engineering & Medicine, and peer-reviewed nutrition & health research — before writing a single formula.
Build & Test
Formulas are turned into working calculators, then stress-tested against manual calculations and edge cases to catch rounding or logic errors.
Medical & Technical Review
Our research team checks every health-related calculator line-by-line against the source guidelines before it's approved to publish.
Publish & Monitor
Once live, we track updates to official guidelines and re-verify calculators on a set schedule — nothing sits untouched indefinitely.
The standards we research against
Our health & nutrition calculators are built and periodically re-checked against sources like these.
Research & editorial team
Roles that sit behind every tool you use on Kromo Tools.
Keeps every source current
Oversees the accuracy of every formula on the site and maintains the library of guidelines and studies each calculator is built from.
Checks the medical logic
Reviews every health-related calculator against clinical and public-health guidelines before it's approved for publishing.
Builds & stress-tests each tool
Turns verified formulas into working calculators, and tests them across devices and edge cases so the numbers hold up every time.
Makes it clear and correct
Reviews language for clarity and accuracy, and confirms every page meets our publishing standard before it ships.