Credibility in Health
Omni Calculator’s health tools are built and reviewed by qualified professionals with backgrounds in medicine, clinical research, epidemiology, psychology, and nutrition.
Our top three most loved health calculators are:
Our contributors bring real-world clinical experience and academic rigor to every calculator they create, ensuring the information you rely on is grounded in evidence-based science.
Together, our health team has created over 430 calculators covering topics from dosage and diagnostics to fitness, nutrition, and mental health.
![]() | 🩺 Dominika Śmiałek, MD, PhD candidate |
Medical Doctor specializing in pediatrics and child neurology. Resident Doctor at SPKSO and Lead Research Analyst at the Medical Innovation Institute in Warsaw. Studied medicine abroad in the Czech Republic and Spain. Pursuing an MBA in Healthcare Innovation & Technology. Worked at Omni for over four years as a Researcher & Content Writer, creating 96 calculators, and later became a Team Leader. | |
Learn more about Dominika | |
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![]() | 🩺 Łucja Zaborowska, MD, PhD candidate |
Physician and researcher specializing in obstetrics and gynecology. Pursuing her PhD in Medical Sciences at Jagiellonian University in Krakow. Lectures and supervises student research groups. Published researcher affiliated with REMEDY. Co-authored a chapter in a gynecological surgery textbook. Has created 234 calculators at Omni. | |
Learn more about Łucja | |
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![]() | 🩺 Aleksandra Zając, MD |
Medical Doctor and certified Lifestyle Medicine Physician by the International Board of Lifestyle Medicine. Graduated from the Medical University of Warsaw. Specializes in how lifestyle impacts health and disease, with expertise in hypercholesterolemia and cardiovascular disease prevention. Has created 126 calculators at Omni. | |
Learn more about Aleksandra | |
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![]() | 🩺 Kacper Pawlik, MD |
Medical Doctor currently working as a General Practitioner. Co-created the BMR Calculator at Omni. | |
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![]() | 🩺 Łukasz Białek, MD |
Medical Doctor with a focus on urology and oncology, bringing medical research experience to the health calculators he has contributed to at Omni. | |
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![]() | 🩺 Małgorzata Koperska, MD |
Medical Doctor (Medical University of Warsaw). Also studied biotechnology at Jagiellonian University. First doctor to join the Omni team. Created calculators, including the sunscreen calculator, LDL calculator, and cholesterol units converter. Currently a resident physician in radiation therapy at Helios Klinikum Berlin-Buch in Germany. | |
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![]() | 🔬 Joanna Michałowska, PhD |
Assistant Professor at the Poznan University of Medical Sciences. PhD in Medical Sciences, specializing in clinical dietetics, obesity treatment, and metabolic disorders. Coordinates Phase II and III clinical trials focused on metabolic and cardiovascular health. Defended her doctoral thesis with distinction. Has created 83 calculators at Omni. | |
Learn more about Joanna | |
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![]() | 🔬 Alexa Ruiz |
Epidemiologist and global health researcher. Master’s in Epidemiology (Clinical Epidemiology track) from Utrecht University. Bachelor’s in Interdisciplinary Health Sciences from the University of Illinois Urbana-Champaign (High Honors). Research Associate at the American Institutes for Research. Previously conducted clinical research on preterm births at UMC Utrecht. | |
Learn more about Alexa | |
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![]() | 🔬 Karolina Kopczyński |
Medical student at the Medical University of Graz, Austria, with a focus on cardiac surgery and interdisciplinary medical research. Currently researching human aortas in collaboration with the Technical University of Graz. Ultrasound tutor, fluent in four languages. | |
Learn more about Karolina | |
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![]() | 🧠 Maria Kluziak |
Master’s in Cognitive Science from Jagiellonian University in Krakow. Worked at Omni Calculator for over four years as a Researcher and Content Writer, creating 72 health tools such as the Fiber Calculator and BAC Calculator, and later as Senior Marketing Specialist. | |
Learn more about Maria | |
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![]() | 🧠 Mariamy Chrdileli |
Psychologist with a Master’s in Clinical and Health Psychology from Eötvös Loránd University in Budapest and a Bachelor’s from Knox College, Illinois. Works at New Vision University in Georgia, supporting students’ mental health. Published researcher on guilt, shame, and pharmaceutical care. Has created 104 calculators at Omni. | |
Learn more about Mariamy | |
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![]() | 🧠 Rita Rain |
Holds a BA in Cognitive Science. Co-created 62 health calculators at Omni, including the Ideal Weight Calculator and the BMR Calculator. | |
Learn more about Rita |
Featured by health media
Our health calculators have been referenced by trusted health and wellness publications worldwide.
CBC News | This online calculator estimates when you'll receive your COVID-19 vaccine | |
CNET | Keto Diet: Everything You Should Know Before You Start | |
Forbes | The Best and Most Helpful Guide To Getting Your Dream Eyebrows | |
Healthline | Body Water Percentage: Average, Ideal, How to Maintain | |
HuffPost | This Vaccine Calculator Predicts When Canadians Can Expect Their Shot | |
Lifehacker | See What Happens When You Quit Smoking With This Calculator | |
![]() | Medical News Today | What percentage of the human body is water? |
NBC News | How to get a haircut you'll actually like, according to stylists | |
The Globe and Mail | Are dogs safe being driven in cars with no air conditioning? | |
![]() | The Independent | Vaccine calculator estimates your place in the queue |
Vice | This Vaccine Queue Calculator Estimates When You'll Be Eligible | |
Vogue | How to Find the Perfect Bangs for Your Face Shape | |
![]() | Yahoo Health | Pro Tips To Get Rid of Toxic Belly Fat |
Cited in medical research
Our health calculators have been cited in peer-reviewed medical journals and academic publications, including:
![]() | The BMJ (2023) | Diabetes detection in women with gestational diabetes and polycystic ovarian syndrome |
EClinicalMedicine / The Lancet (2021) | Association of maternal lipid profile and gestational diabetes mellitus | |
Fertility and Sterility (2020) | Adjusting antimüllerian hormone levels for age and BMI | |
![]() | Journal of the American Heart Association (2024) | Impact of Secondary Amenorrhea on Cardiovascular Disease Risk |
Nature Communications (2023) | Metagenomic sequencing of post-mortem tissue samples | |
npj Vaccines (2023) | Systematic review of myocarditis and pericarditis in adolescents | |
Obesity Surgery (2024) | Impact of Bariatric Surgery on Diabetic Kidney Disease | |
Pediatric Research (2021) | Effects of low-glycemic index diet on plasma adipokines in childhood obesity | |
Scientific Reports (2022) | Systematic review of outcome-relevant anemia in subarachnoid hemorrhage | |
Sports Medicine (2024) | The Effect of Exercise Training on Blood Lipids | |
![]() | The Journal of Child Psychology and Psychiatry (2024) | Brain tissue microstructure in preterm children |
In total, our health calculators have been cited in over 90 peer-reviewed journal articles across cardiology, endocrinology, pediatrics, oncology, nutrition, and more.
Every day, people around the world turn to our health calculators to manage chronic conditions, track their progress, and make informed decisions about their well-being.
From monitoring glucose levels to adjusting dietary intake, our tools help users take an active role in their health. Here is what some of them have shared with us.

















