What you'll find here
The site is growing one calculator at a time. The first is our TDEE calculator, which estimates maintenance calories and turns them into a goal, a macro split and a sample day of meals. Next come calculators for calories burned, steps, macros and BMR, followed by nutrition pages for everyday foods, scaled to the portion you actually eat.
Who builds it
CalorieBloom is researched, written and coded by Mohamed Skhiri. He designs each calculator, writes the guide that sits under it, and keeps both up to date. It's an independent project, not part of a gym, a diet brand or a supplement company.
Where the numbers come from
Each calculator uses an equation that has been published and tested, such as the Mifflin-St Jeor equation for resting energy needs. Recommendations come from official sources: the Dietary Guidelines for Americans, the CDC, the NIH, the FDA and the National Academies. Food values come from USDA FoodData Central. Every page lists its sources at the bottom, linked to the original document.
How a calculator is checked
Before a calculator goes live, its results are worked out by hand for several sample people and compared with what the page shows. We test the edge cases too: very small and very tall bodies, metric and US units, and goals that would push calories too low. If a result would fall below a safe level, the calculator says so instead of showing it.
What we won't do
- Recommend crash diets or calorie targets that need medical supervision.
- Sell or recommend supplements, pills or "metabolism boosters".
- Present an estimate as a diagnosis. Our numbers are a starting point for healthy adults; your doctor or a registered dietitian knows your situation.
How the site is funded
CalorieBloom is free to use. In the future it may show advertising to cover its costs. Ads will never change a calculator's results or a guide's advice, and we don't accept payment to mention products.
Say hello
Spotted an error or have an idea for a calculator? Get in touch. Read how we handle corrections in our editorial policy.