About VivMetric

Last updated: July 2026. VivMetric is an independent, third-party educational platform that provides formula-based calculators and reference resources for health and fitness metrics. The site is built to serve as a transparent, no-nonsense reference tool for anyone who wants to understand and track common body and fitness metrics using standard public health formulas — without registration, without data collection, and without medical advice.

Our Mission

VivMetric's mission is to make standard public health formulas accessible, transparent, and useful for everyday self-tracking. We believe that basic health metrics — BMI, BMR, TDEE, body fat, calorie expenditure, water intake, sleep cycles, and similar indicators — should be available to everyone as neutral mathematical references, presented without medical interpretation, commercial bias, or hidden agendas.

We built VivMetric because most online calculators either hide their formula sources, mix in proprietary adjustments, or cross the line into offering personalized health advice. VivMetric takes a different approach: every calculator implements a named, published formula from a named public authority, displays the formula expression directly on the page, and makes no claim about what your specific numbers mean for your individual health. What you see is arithmetic — the same arithmetic published by CDC, WHO, NIH, USDA, and other public bodies.

What VivMetric Is

• An independent, third-party formula reference platform
• A collection of pure client-side calculators with no server-side data collection
• A transparent source-attribution system for public health formulas and reference tables
• An educational resource explaining how standard formulas work and where they come from
• A privacy-focused tool that never stores your inputs or results

What VivMetric Is NOT

• A medical website, telehealth platform, or clinical tool
• A provider of medical advice, diagnosis, or treatment
• A personalized health planning or coaching service
• A source of supplement, drug, or product recommendations
• A fitness training instruction or workout programming platform

Editorial Policy

VivMetric maintains a strict editorial policy to ensure that all content on the platform remains neutral, transparent, and free from influence. The key principles of our editorial policy are:

No Medical Expertise Claimed

VivMetric does not claim to employ medical professionals, registered dietitians, or certified health coaches. All content on the site is produced by the editorial team as mathematical and educational reference material only. No page asserts clinical expertise or offers professional healthcare guidance.

Formula Transparency

Every calculator page displays the exact formula used, defines every variable, and cites the original publication. Where multiple published formulas exist for the same metric (for example, BMR), each formula is displayed side-by-side with its own explicit source attribution. VivMetric never applies proprietary modifications, weighting factors, or machine-learning adjustments on top of published arithmetic.

No Recommendation Language

VivMetric content never uses language that could be interpreted as medical or health guidance. We do not use words such as "should," "best," "must," "recommend," "guarantee," or "definitely" in relation to any health metric, formula output, or reference range. Categorical labels (for example, BMI ranges) are reproduced exactly as published by the issuing authority and are not accompanied by interpretive text about what those ranges mean for any specific individual.

Advertising Separation

All advertising on VivMetric is served through the Google AdSense program. Advertisers have no editorial input into any calculator, article, or reference table on the site. Ad placement is determined by our editorial team with a strict policy that ads never interfere with calculator functionality, never appear inside calculator input or result areas, and never appear inside details/summary collapsible panels.

Author Credentials

VivMetric content is produced by our editorial team. The primary author and reviewer for calculators and formula-related content is listed below:

Data Sources Policy

VivMetric has a permanent data sources policy that governs all numerical content on the platform. The key rules are:

• Public only. All data, formulas, reference ranges, and tables are sourced exclusively from public, freely accessible publications issued by named public authorities.
• No proprietary data. Proprietary datasets, subscription-only databases, paywalled publications, and unreleased data are excluded.
• Source-labeled. Every formula, constant, and reference value is attributed to its originating authority directly on the page where it appears.
• Verbatim presentation. Public reference data is presented verbatim where feasible, without modification, re-weighting, or subjective interpretation.
• Quarterly review. All source publications are reviewed on a quarterly cycle for updates, revisions, or retractions by the issuing authority.

The full list of data sources used across the platform, including direct URLs and specific usage descriptions, is published on the dedicated Data Sources page.

Frequently Asked Questions