Editorial Policy

Last updated: July 16, 2026

This page explains how content on FitCalcs is written, reviewed, and corrected. Our methodology page covers which formulas we use and why; this page covers the process around that content.

Who writes the content

All content on FitCalcs is written by Jesse, a software developer who reviews fitness and nutrition research as a personal interest. Jesse is not a doctor or registered dietitian. Every page makes this clear and presents its tools as educational estimates, not medical advice.

How content is fact-checked

Before any calculator or guide is published, each factual claim is traced to a specific published source — a peer-reviewed study, a position paper from a recognized health authority, or an official reference value. Claims that cannot be sourced to a specific reference are not published.

• Every calculator page includes a visible "References" section that lists the studies or standards behind its formula.
• Every guide article cites its sources inline and in a reference list at the end.
• Formulas are implemented directly from the original papers, not from secondary sources, and the implementation is verified against the paper's worked examples where they are provided.

Scope and limitations

FitCalcs covers general fitness and nutrition topics aimed at healthy adults. We do not cover clinical nutrition, medical treatment, or exercise prescription for people with medical conditions. When a topic is outside that scope, we say so and recommend consulting a qualified professional.

We are honest about the accuracy limits of every tool. Prediction equations like the Mifflin-St Jeor BMR formula carry a typical margin of error of roughly ±10% for any individual. We state this error range prominently rather than presenting a single number as precise truth.

Updates and reviews

Content is reviewed when relevant guidelines or research change, when a reader correction is submitted, or when we add related new content that prompts a cross-check. Each guide shows the date it was last updated. The methodology page carries its own review date, which reflects the last time the formulas and their citations were verified.

We do not alter published content to improve its appearance retrospectively without noting the change. Material corrections are addressed by updating the affected page and revising its "last updated" date.

Corrections

Accuracy matters. If you believe a formula is implemented incorrectly, a cited source says something different from what we have written, or a result does not add up, please tell us. Every report is investigated. If a correction is warranted, we fix the content and update the review date.

To report an error, email hello@fitcalcs.app or use the contact page. Please include the page URL, what you believe is wrong, and — if you have it — the source you think we should consult.

Commercial independence

FitCalcs is funded by display advertising. Advertisers have no influence over content. The formula choices, recommended ranges, and editorial framing are determined entirely by the published evidence, not by any commercial relationship.

We do not publish sponsored content, affiliate recommendations, or product endorsements.