Disclaimer
Please read before using our tools
Last updated: 26 March 2026
General Disclaimer
All content on Stone to KG (www.stonetokg.com) is provided for informational purposes only. While we make every effort to ensure accuracy, we do not guarantee that the information, calculations, or results provided are complete, correct, or up to date.
The tools on this website are designed to assist with common weight conversions. They should be used as a helpful reference, not as a definitive source for decisions that affect your health, finances, or wellbeing.
Not Professional or Medical Advice
Important
The content on this website does not constitute medical, health, dietary, fitness, or any other form of professional advice. This applies to all tools, including but not limited to:
- BMI Calculator
- Pregnancy Weight Gain Calculator
- All weight conversion tools
Always consult a qualified healthcare professional, such as your GP or midwife, before making any decisions based on weight, BMI, or health-related calculations.
Tool Limitations
Our conversion tools and calculators use standard, widely accepted formulas. However, please be aware of the following:
⚙️ Automated Calculations
Results are generated automatically. Small rounding differences may occur compared to manual calculations.
📐 Standard Formulas
We use internationally recognised conversion factors (e.g., 1 stone = 6.35029 kg, 1 kg = 2.20462 lbs).
📊 General Ranges
Health-related tools (BMI, pregnancy calculator) show general guideline ranges, not personalised recommendations.
🔄 Browser-Based
All calculations run in your browser. No data is sent to our servers.
Use at Your Own Risk
By using the tools and content on this website, you acknowledge that:
- You are responsible for how you interpret and use any results
- Stone to KG is not liable for any decisions made based on the information provided
- Results should be verified independently where accuracy is critical
External Links
This website may contain links to external websites or resources. These are provided for convenience and reference only. Stone to KG does not control or endorse the content of any third-party site and is not responsible for their accuracy, privacy practices, or availability.
Where we reference public health guidance (for example NHS BMI ranges), we link to the source so you can verify it yourself. Guidance changes over time, so always check the current version on the source website rather than relying on our summary alone.
Where Our Health Information Comes From
Where our pages show health context (such as BMI categories), the ranges follow widely published public guidance, including the NHS healthy weight range (BMI 18.5 to 24.9) and WHO classifications. We do not invent our own medical thresholds.
That said, BMI is a screening measure, not a diagnosis. It does not account for muscle mass, bone density, age, sex, or ethnicity, and it is not designed for children, pregnant women, or athletes. Treat every BMI figure on this site as a starting point for a conversation with a qualified professional, never as a verdict.
Advertising Disclosure
This website may display third-party advertisements. Advertisers do not influence our conversion results, health information, or editorial content. Sponsored placements, where they exist, are labelled as advertising.
Contact Us
If you have any questions about this disclaimer, or if you believe any content on the site is inaccurate, please contact us: