Honestly? This whole site started because we were tired of being confused. A few of us were on our own fitness journeys — trying to lose a few kilos, eat better, figure out why the gym was not working the way we expected. Basic stuff that a lot of Filipinos go through.
And every time we searched for answers online, we hit the same wall. Calculators built for someone else. Examples using foods we do not eat. Numbers that felt off but we could not explain why. We were getting results. We just did not trust them. So we stopped guessing and started building.
How FitCalcPH actually started
It was not a big plan from day one. One of us was trying to figure out the right calorie target after months of eating “healthy” with zero results. Searched everywhere. Found calculators — but all of them felt like they were made for someone living in the US or UK, not someone here. We started doing the math manually using the actual formulas nutritionists use. And when the numbers finally made sense, the results started making sense too.
That was the lightbulb moment. If this was the missing piece for us, it was probably the missing piece for a lot of other Filipinos too. FitCalcPH came from that — a simple idea that people deserve tools built around their context, not someone else’s.
What we actually built and why
Every calculator on FitCalcPH runs on the Mifflin-St Jeor equation — the same formula registered nutritionists and dietitians use in actual clinical practice. We did not pick it because it sounded impressive. We picked it because when we tested it against other formulas, it was consistently the most accurate for real people — not just textbook cases.
Accuracy was non-negotiable for us from the beginning. People make real decisions based on these numbers. What to eat. How much. Whether something is working. Those decisions needed a solid foundation — not a rough estimate built on an outdated formula. Everything else — the explanations, the examples, the Filipino context throughout — came from asking one simple question every time:
Would this actually help someone here understand what they are looking at? If the answer was no, we rewrote it.
Who is the FitCalcPH team?
We are a small team — fitness enthusiasts, not doctors or professional nutritionists. We are not here to replace medical advice or tell anyone what is right for their specific health situation. That is what qualified professionals are for. What we are good at is taking the science that already exists — the formulas, the research, the guidelines — and making it accessible and actually useful for everyday Filipinos.
We use these calculators ourselves. We update them when better information becomes available. And we keep adding new tools because our own fitness questions keep coming up. FitCalcPH is built by people who needed it — which is probably the best reason to build anything.
Everything here is free — and will stay free
No subscriptions. No premium plans. No signup required for anything. Every calculator on FitCalcPH is completely free to use — and that is not changing. We keep the site running through advertising. That is the trade — free tools, a few ads on the page. We think that is a fair deal, and we work to keep the ads from getting in the way of the tools.
A quick note on health information
The tools on FitCalcPH give you estimates based on scientifically validated formulas and the information you enter. They are not medical advice. They are not a diagnosis. And they are not a substitute for talking to a doctor, nutritionist, or qualified health professional — especially if you have an existing condition or are managing something specific under medical supervision. Use what you find here as a starting point. Your body will tell you the rest. If something seems off — adjust. If something does not add up — ask a professional. The numbers are a guide, not a rulebook.
Want to talk to us?
We actually read our messages — all of them, every one. If a calculator gave you a result that does not feel right, tell us. on this site, we genuinely want to hear it. If something is confusing or unclear, that is on us and we want to fix it. Head over to our Contact page and drop us a message. No forms that disappear into nothing — we will get back to you. Thanks for being here. We hope FitCalcPH gives you exactly what your fitness journey needs.
— The FitCalcPH Team