BMI Calculator UK (Stones & Pounds)
UK-style BMI from stones, pounds, feet and inches — no mental conversion needed, NHS reference bands shown.
Built for UK units: 11 st 4 lb at 5′7″ is the default. One stone is exactly 14 lb (6.35 kg). The NHS uses the standard WHO bands for adults, with separate guidance for South Asian, Chinese and Black African heritage groups at 23/27.5.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
UK-style BMI from stones, pounds, feet and inches — no mental conversion needed, NHS reference bands shown. The BMI Calculator UK (Stones & Pounds) is a free, private bmi calculator stones tool — every result computes instantly in your browser with no sign-up and no data upload.
About BMI Calculator UK (Stones & Pounds)
Built for UK units: 11 st 4 lb at 5′7″ is the default. It applies BMI = kg ÷ m² (1 stone = 14 lb = 6.35 kg). Use the BMI Calculator UK (Stones & Pounds) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use BMI Calculator UK (Stones & Pounds)
- 1Enter your details in the BMI Calculator UK (Stones & Pounds) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use BMI Calculator UK (Stones & Pounds)?
- ✓Instant bmi calculator stones result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (NHS — BMI healthy weight guidance)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the BMI Calculator UK (Stones & Pounds) work?+
Built for UK units: 11 st 4 lb at 5′7″ is the default. The calculation uses the formula: BMI = kg ÷ m² (1 stone = 14 lb = 6.35 kg). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the BMI Calculator UK (Stones & Pounds) accurate, and what is it based on?+
The method is traceable to authoritative sources: NHS — BMI healthy weight guidance. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the BMI Calculator UK (Stones & Pounds) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the BMI Calculator UK (Stones & Pounds) for?+
It's commonly used for bmi calculator stones, bmi uk, bmi stones and pounds. UK-style BMI from stones, pounds, feet and inches — no mental conversion needed, NHS reference bands shown.
Related Health tools
Adult BMI Calculator (WHO)
Body-mass index for adults with the WHO reference bands shown neutrally, plus the substituted formula step by step.
● LiveBMI Calculator (lb & inches)
US-style BMI from pounds and inches using the ×703 conversion, with CDC adult reference ranges.
● LiveBMI Calculator for Women
BMI with reference context written for women — what the index can and cannot say about female body composition.
● Live