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Used by Mounjaro & Wegovy patients across the UK

The UK's most complete GLP-1 guide

Every Question Answered. Every Side Effect Explained.

  • How GLP-1 medications work
  • Mounjaro vs Wegovy compared
  • Injection instructions
  • Side effects & solutions
  • What to eat on treatment
  • FAQs answered
Get the guide + free tracker — £1.99 →

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GLP-1 Medication Guide — 11 chapters, 100+ pages, NHS-aligned with free 52-week weight loss tracker calendar
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11.13 Stone in Lbs — What's Your BMI?

11.13 stone is equivalent to 155.8 pounds (kg to stone conversion shows this is approximately 70.6 kg). Your BMI at this weight depends entirely on your height. Using our free BMI calculator, you can find your exact BMI instantly, but we've provided example BMI values below at common UK heights to help you understand where you might fall on the NHS health scale. Remember that BMI is a useful screening tool, though it doesn't account for muscle mass or where fat is stored on your body.

10,000+ calculations today · NHS-aligned thresholds · 100% free

26%of UK adults are living with obesityNHS Digital, 2023
64%of adults in England are overweight or obeseHealth Survey for England
£6.5bnannual cost of obesity to the NHSPublic Health England
4.7Mpeople in England eligible for weight loss drugsNICE estimates, 2024

Calculate Your BMI Instantly

Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.

What Is BMI and Why Does It Matter?

Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).

While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.

Below 18.5Underweight
18.5 – 24.9Healthy
25 – 29.9Overweight
30+Obese

The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.

BMI at 11.13 Stone — Examples by Height

At 11.13 stone (155.8 lbs / 70.6 kg), your BMI varies significantly based on your height:

  • 5ft 2in (157cm): BMI 28.4 — Overweight category
  • 5ft 5in (165cm): BMI 26.1 — Overweight category
  • 5ft 8in (173cm): BMI 24.1 — Healthy weight category
  • 5ft 10in (178cm): BMI 22.4 — Healthy weight category
  • 6ft 0in (183cm): BMI 21.0 — Healthy weight category

Use our weight converter to switch between stone and kilograms, and our free BMI calculator above to find your personal BMI instantly at your exact height.

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How It Works

Three simple steps to understand your weight and take action.

1Check Your BMI

Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.

2Explore Your Options

If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.

3Track Your Progress

Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.

Free Weight Loss Tools & Guides

Everything you need to understand your weight, explore medication options, and track your progress — completely free.

NHS BMI Categories and What They Mean

The NHS defines BMI categories for UK adults as: Healthy weight (18.5–24.9), Overweight (25–29.9), Obese (30–34.9), and Severely obese (40+). At 11.13 stone, whether you're in the healthy or overweight range depends on your height, as shown above. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds because these groups face higher health risks at the same BMI. BMI is a screening tool only — it doesn't measure body fat directly or account for muscle mass, so discuss your personal weight with your GP for tailored health advice.

Mounjaro (Tirzepatide)
  • Dual GIP/GLP-1 receptor agonist
  • Up to 22.5% body weight loss (SURMOUNT-1)
  • Weekly injection, dose escalation over 20+ weeks
  • Available via private prescription in the UK
  • Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
Read our full Mounjaro guide →
Wegovy (Semaglutide)
  • GLP-1 receptor agonist
  • Up to 15–17% body weight loss (STEP trials)
  • Weekly injection, 5-step dose escalation
  • NHS & private prescription available
  • Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Read our full Wegovy guide →

Mounjaro vs Wegovy: Head-to-Head

A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.

FeatureMounjaroWegovy
Drug classDual GIP/GLP-1 agonistGLP-1 agonist
Active ingredientTirzepatideSemaglutide
Avg. weight loss15–22.5%12–17%
Key trialSURMOUNT-1 (2022)STEP 1 (2021)
Max dose15 mg weekly2.4 mg weekly
Escalation period20–32 weeks16–20 weeks
AdministrationWeekly injection (pen)Weekly injection (pen)
NHS availabilityPrivate prescription onlyNHS & private
Approx. private cost£150–£250/month£150–£300/month
Common side effectsNausea, diarrhoea, constipationNausea, vomiting, diarrhoea

Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.

Am I Eligible for Weight Loss Medication?

In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.

Standard eligibility
  • BMI of 30 or above (obese)
  • Age 18 or over
  • No contraindicated conditions
  • Committed to lifestyle changes
With comorbidities
  • BMI of 27 or above
  • Plus type 2 diabetes
  • Or high blood pressure
  • Or obstructive sleep apnoea

Use our BMI calculator to check whether your BMI falls within the eligible range.

How We Built These Tools

Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.

All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.

We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.

Frequently Asked Questions

Common questions about BMI, weight loss medications, and our free UK tools.

What is 11.13 stone in pounds?

11.13 stone equals 155.8 pounds exactly. Since 1 stone = 14 pounds, multiply 11.13 × 14 = 155.82 lbs. In kilograms, 11.13 stone is approximately 70.6 kg. Use our free weight converter to switch between stone, pounds, and kilograms instantly.

Is 11.13 stone a healthy weight?

Whether 11.13 stone is healthy depends on your height and body composition. At 5ft 8in, a BMI of 24.1 falls in the healthy range. At 5ft 2in, a BMI of 28.4 is overweight. Use our free BMI calculator above, enter your height, and you'll instantly see which NHS category applies to you.

What BMI is 11.13 stone at 5ft 8in?

At 5ft 8in (173cm), 11.13 stone (70.6 kg) gives a BMI of approximately 24.1, which is in the healthy weight category according to NHS guidelines (18.5–24.9).

Does 11.13 stone mean I need to lose weight?

Not necessarily — it depends on your height and health. Someone at 5ft 10in has a healthy BMI at this weight, while someone at 5ft 2in would be overweight. Your GP can assess whether weight loss would benefit your individual health. Discuss any concerns with your GP rather than self-diagnosing.

How do I convert stone to kilograms?

To convert stone to kilograms, divide by 6.35029. So 11.13 stone ÷ 6.35029 = 70.6 kg. Our free weight converter and BMI calculator both show instant conversions between stone, pounds, and kilograms in all directions.

Ready to take control of your weight loss journey?

Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.

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