Terms of Service

MacrosMeasure provides free, browser-based nutrition calculators including — but not limited to — calorie calculators, macro calculators, BMI, TDEE, body fat percentage, ideal weight, protein intake, keto macros, water intake, one-rep max, calories burned, and recipe nutrition analysis.

• All calculations are performed locally in your browser using established nutritional science formulas.
• No user account or registration is required to use any calculator.
• The Service is provided free of charge with no subscription tiers.
• The Service is provided "as is" without warranty of uninterrupted uptime or guaranteed accuracy.
• MacrosMeasure does not provide medical, dietary, or clinical advice.

MacrosMeasure uses named, peer-reviewed formulas including the Mifflin-St Jeor equation (calories/BMR), the US Navy circumference method (body fat), the Epley formula (one-rep max), and USDA FoodData Central (recipe nutrition). Links to source research are available on our About page.

Known limitations and sources of variation:

• Results may deviate ±10–15% from actual values due to individual metabolic variation.
• Body fat formulas are less accurate for highly muscular athletes, where DEXA scanning is recommended.
• BMR and TDEE estimates are less precise for individuals over 70 due to age-related metabolic changes.
• Pregnancy significantly alters caloric and macronutrient needs in ways not captured by standard equations.
• Nutritional data for processed and packaged foods may differ from USDA values due to manufacturer variation.

MacrosMeasure makes no express or implied warranties as to the accuracy, completeness, or suitability of the information provided. Results are estimates only.

You may use MacrosMeasure for personal, non-commercial informational purposes. You agree not to:

• Scrape, crawl, or systematically extract data from the Service using automated tools without prior written consent.
• Use the Service, its outputs, or any calculator results for commercial purposes without a written licensing agreement.
• Attempt to decompile, reverse-engineer, copy, or reproduce the calculator code or design without permission.
• Use the Service to distribute spam, malware, or any harmful or misleading content.
• Present MacrosMeasure outputs as certified medical, clinical, or dietary assessments.
• Republish, frame, or embed any part of the Service in another product without express written permission.

The design, source code, branding, written content, and visual assets of MacrosMeasure are the exclusive intellectual property of MacrosMeasure and its operators, protected under applicable copyright and intellectual property law. You may not reproduce, redistribute, or create derivative works from any proprietary content without express written permission.

The underlying mathematical formulas (Mifflin-St Jeor, Epley, US Navy method, etc.) are derived from peer-reviewed academic research and are in the public domain. The USDA FoodData Central dataset is a public-domain U.S. government database. Our implementation, codebase, and design around these formulas remain proprietary.

MacrosMeasure displays advertisements served by Google AdSense. These ads are how we fund the site and keep all calculators permanently free. By using this site, you acknowledge that:

• Ads are served by Google and its advertising partners, not MacrosMeasure.
• MacrosMeasure does not control the content of advertisements displayed on this site.
• Ad targeting is governed by Google's advertising policies and your browser's cookie settings.
• You can opt out of personalised advertising at adssettings.google.com.
• MacrosMeasure is not responsible for products, services, or claims made in third-party advertisements.

To the fullest extent permitted by applicable law, MacrosMeasure, its operators, contributors, and affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages of any kind arising from:

• Your use of or inability to use the Service or its results.
• Any health outcomes, dietary decisions, or medical consequences arising from reliance on calculator outputs.
• Loss of data, financial loss, or business interruption.
• Actions taken by third-party advertisers or linked websites.
• Inaccuracies in calculation results due to individual metabolic variation.

As the Service is provided free of charge, the maximum aggregate liability of MacrosMeasure to you for any claim related to the Service is zero dollars ($0.00) — the amount you paid to use it. Your sole remedy for dissatisfaction with the Service is to stop using it.