Contact Us

We genuinely appreciate you taking the time to reach out. At BMI Calculator, we believe that open communication with our users is essential to creating the best possible health tools and educational resources. Whether you have a question about how to interpret your BMI results, need help troubleshooting a technical issue, want to share your feedback about our website, or simply have an idea for how we could improve our services, we want to hear from you.

Our mission is to provide free, accurate, and accessible body mass index calculators and health education resources to people around the world. Since launching this website, we have helped millions of users understand their BMI, learn about healthy weight ranges, and take the first steps toward better health awareness. Every message we receive helps us understand how we can better serve our community of health-conscious individuals.

How to Reach Us

The best and most reliable way to contact our team is via email. We have chosen to focus exclusively on email communication because it allows us to provide thoughtful, detailed responses to your inquiries. Unlike live chat or phone support, email gives our team the time to thoroughly research your question, consult relevant resources, and craft a comprehensive response that truly addresses your needs.

Email Us Directly

info@calculatemybmi.net

We typically respond to all inquiries within 48 hours during business days. Most messages receive a response even sooner.

When composing your email, please include as much relevant detail as possible. If you are reporting a technical problem, let us know which calculator you were using, what browser and device you are on, and describe the steps that led to the issue. If you have a question about BMI interpretation, include your height, weight, age, and any specific concerns you have. The more context you provide, the better we can assist you.

What We Can Help You With

Our team is equipped to assist with a wide variety of topics related to our BMI calculators, health tools, and educational content. Over the years, we have received thousands of messages from users around the world, and we have developed expertise in addressing the most common questions and concerns. Here is an overview of the types of inquiries we regularly handle:

Understanding Your BMI Results

Body Mass Index can sometimes be confusing to interpret, especially when you factor in variables like age, gender, muscle mass, and athletic status. Our team can help clarify what your specific BMI number means, which weight category it places you in according to World Health Organization and Centers for Disease Control and Prevention guidelines, and what factors might affect the accuracy of this measurement for your individual situation. We can also explain the differences between our various calculators, such as the standard BMI calculator versus the Trefethen New BMI formula, which some researchers argue provides more accurate results for very tall and very short individuals.

Technical Support and Troubleshooting

While we design our calculators to work seamlessly across all modern web browsers and devices, technical issues can occasionally arise. If you encounter any problems such as the calculator not loading, buttons not responding, results not displaying correctly, or any other functionality issues, please reach out to us with details about the problem. Include information about your browser (Chrome, Firefox, Safari, Edge, etc.), your device type (desktop, laptop, tablet, smartphone), and your operating system (Windows, macOS, iOS, Android). Screenshots are also extremely helpful if you are able to attach them to your email.

Suggestions for New Features and Calculators

We are always looking for ways to expand and improve our offerings. Many of our current calculators and features were developed based on user suggestions. If you have an idea for a new health calculator, a feature enhancement, or an educational article topic you would like us to cover, we would love to hear about it. While we cannot implement every suggestion, we carefully evaluate each one and prioritize ideas that would benefit the largest number of users.

Content Corrections and Updates

Accuracy is one of our core values. If you spot a factual error in any of our articles, outdated statistics, broken links, or any other content issues, please let us know immediately. We take content accuracy very seriously because we understand that people rely on our information when making decisions about their health. All corrections are reviewed and implemented as quickly as possible.

Partnership and Collaboration Inquiries

We occasionally collaborate with health educators, fitness professionals, medical organizations, and researchers who share our mission of promoting health awareness. If you represent an organization and are interested in discussing potential partnerships, educational use of our tools, or research collaborations, please include details about your organization and the nature of the proposed partnership in your email.

General Feedback

Whether your experience on our site has been positive or negative, we want to know about it. User feedback is invaluable for helping us understand what we are doing well and where we need to improve. Comments about our site design, navigation, accessibility features, content clarity, or any other aspect of your user experience are always welcome.

About Our Team and Mission

BMI Calculator was founded with a simple but powerful mission: to make accurate health assessment tools freely available to everyone, regardless of their location, financial situation, or technical expertise. We believe that understanding your body mass index is an important first step in health awareness, and that this information should not be locked behind paywalls or complicated registration processes.

Our team consists of individuals passionate about health education, web development, and user experience design. We are committed to presenting health information in a way that is accessible to the general public while still maintaining scientific accuracy. We regularly review the latest research on BMI, body composition, and weight-related health outcomes to ensure that our content reflects current scientific understanding.

Every calculator on our site is developed using established medical formulas that are recognized by major health organizations including the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and the National Institutes of Health (NIH). We cite our sources, explain our methodology, and are transparent about the limitations of BMI as a health metric.

Since our launch, we have served millions of users from over 150 countries. Our calculators have been used by individuals tracking their personal health, parents monitoring their children's growth, healthcare professionals supplementing their patient consultations, fitness enthusiasts optimizing their training, and researchers gathering preliminary data. This diverse user base motivates us to continuously improve our tools and ensure they meet the needs of people from all walks of life.

What to Expect After You Email Us

When you send an email to our team, here is what you can expect:

Within 24-48 Hours: During regular business hours (Monday through Friday), you will typically receive a response within 24 to 48 hours. Simple questions are often answered even faster, sometimes within just a few hours of receipt.

Weekends and Holidays: Emails received on weekends or during major holidays may take slightly longer to receive a response. Rest assured that all messages are read and queued for response, even if there is a brief delay.

Complex Inquiries: Some questions require additional research or consultation before we can provide a thorough answer. If your inquiry falls into this category, we will send an acknowledgment email letting you know that we have received your message and are working on a comprehensive response.

Language: We currently provide support in English only. If English is not your first language, please do not hesitate to write to us anyway. We will do our best to understand your message and provide a helpful response. Using simple, clear sentences will help ensure effective communication.

Important Health Information Disclaimer

Please Read Before Contacting Us About Health Concerns

Our calculators and educational content are designed for general informational and educational purposes only. They are not intended to diagnose, treat, cure, or prevent any disease or health condition. BMI is a screening tool, not a diagnostic test, and it has well-documented limitations.

Our team consists of health educators and web developers, not licensed medical professionals. We cannot provide personalized medical advice, diagnose health conditions, recommend specific treatments, or interpret your results in the context of your complete health history.

If you have concerns about your weight, BMI, or overall health, please consult a qualified healthcare provider. A doctor, registered dietitian, or other licensed health professional can provide personalized guidance based on a comprehensive evaluation that includes factors our calculators cannot assess, such as your medical history, family history, blood work results, and physical examination findings.

Your Privacy When Contacting Us

We take your privacy seriously, both when you use our calculators and when you contact us via email. Here is how we handle your information:

Email Communications: When you email us, we will use your email address solely for the purpose of responding to your inquiry and for any necessary follow-up communication. We do not add email addresses to marketing lists, sell them to third parties, or use them for any purpose other than responding to your message.

Personal Health Information: If you choose to share personal health details in your email (such as your height, weight, or health concerns), this information is treated with confidentiality. We only use such information to provide you with a helpful response and do not store it in any database or share it with others.

Data Retention: Email correspondence is retained only as long as necessary to resolve your inquiry and for reasonable record-keeping purposes. We do not maintain permanent archives of user communications.

For complete details about how we handle user data across our entire website, please review our comprehensive Privacy Policy.

Frequently Asked Questions

Before reaching out, you may find your answer in our FAQ section below. These are the questions our team receives most frequently.

Calculating your BMI on our website is straightforward. Visit our main calculator page, enter your height (you can choose between metric units like centimeters or imperial units like feet and inches), enter your weight (kilograms or pounds), and click the Calculate button. Your BMI result will appear instantly, along with your weight category classification and personalized health insights. We also offer specialized calculators for women, men, different age groups, and children and teens.

Yes, all of our BMI calculators and health tools are 100% free to use. There are no hidden fees, no subscription requirements, no premium features locked behind a paywall, and no registration needed. We believe that basic health assessment tools should be accessible to everyone, and we are committed to keeping our calculators free for all users worldwide. You can use them as many times as you like without any restrictions.

No, your privacy is our priority. All BMI calculations are performed entirely within your web browser using JavaScript. Your height, weight, age, and other personal measurements are never sent to our servers, stored in any database, or shared with any third parties. When you close your browser tab, your calculation data is gone. We have designed our calculators this way specifically to protect your privacy. You can read more in our detailed Privacy Policy.

BMI is a useful screening tool, but it should not be the sole basis for medical decisions. The BMI formula has important limitations: it does not distinguish between muscle and fat, does not account for body fat distribution, and may not be accurate for athletes, elderly individuals, or certain ethnic groups. We strongly recommend using your BMI as one data point among many and consulting with a qualified healthcare provider for personalized medical advice. Your doctor can order additional tests and consider your complete health picture.

If a calculator is not functioning properly, try these troubleshooting steps: (1) Make sure JavaScript is enabled in your browser settings, as our calculators require it. (2) Refresh the page or clear your browser cache. (3) Try using a different browser such as Chrome, Firefox, Safari, or Edge. (4) Disable any ad blockers or browser extensions temporarily. (5) Ensure you are entering valid numerical values in the input fields. If none of these steps resolve the issue, please email us at info@calculatemybmi.net with details about the problem, your browser, your device, and any error messages you see.

Our standard BMI calculator uses the universally recognized formula: BMI = weight (kg) / height (m)². This is the same formula used by the World Health Organization, the CDC, and healthcare providers worldwide. We also offer a New BMI Calculator based on the Trefethen formula (BMI = 1.3 x weight (kg) / height (m)^2.5), which some researchers suggest provides more accurate results for very tall and very short individuals. You can learn more about BMI formulas in our BMI Formula Guide.

We enthusiastically welcome user suggestions! Many of our current features and calculators were developed based on ideas from our users. If you have an idea for a new health calculator, a feature improvement, or an educational topic you would like us to cover, send your suggestion to info@calculatemybmi.net. Please describe your idea in as much detail as possible, including why you think it would be valuable and how you envision it working. We review all suggestions carefully and prioritize those that would help the most users.

Yes! We offer a specialized Pediatric BMI Calculator designed specifically for children and teenagers between the ages of 2 and 19. Unlike adult BMI, which uses fixed category cutoffs, pediatric BMI is interpreted using age- and sex-specific percentiles based on CDC growth charts. This accounts for the fact that children's body composition changes as they grow. Our pediatric calculator provides BMI-for-age percentile results and explains what each percentile range means for your child's health. For more information, read our Pediatric BMI Guide.

Explore Our Resources Before Contacting Us

You may find the answer to your question in our existing educational content. We have published comprehensive guides covering virtually every aspect of body mass index, healthy weight ranges, and related health topics. Here are some of our most helpful resources:

Complete BMI Guide Step-by-step walkthrough of how BMI works and what your results mean. BMI Formula Explained The mathematics behind the BMI calculation with worked examples. BMI Categories Understand underweight, normal, overweight, and obese classifications. BMI Limitations Important factors that BMI does not account for. All Calculators Browse our complete collection of 8 free health calculators. All Guides & Articles Explore our full library of 30+ health education articles.

If you have reviewed our guides and still have questions, we encourage you to reach out. Our team is happy to provide additional clarification and personalized responses to help you get the most out of our health tools.

We Look Forward to Hearing From You

Your feedback, questions, and suggestions help us improve our BMI calculators and health resources for everyone. Do not hesitate to reach out.

Email Us Now

info@calculatemybmi.net