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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 →

Free tracker included with every download this week

GLP-1 Medication Guide — 11 chapters, 100+ pages, NHS-aligned with free 52-week weight loss tracker calendar
Free · Instant · No sign-up required

11 Stone 13 in Pounds — UK Weight Reference

11 stone 13 pounds equals 167 pounds (or 75.7 kilograms). If this is your current weight, understanding how it converts across UK measurements and what it means for your health according to NHS guidance is important for making informed decisions about your wellbeing. This weight falls into a specific BMI category that varies depending on your height, age, and ethnicity. Use our free weight converter to check conversions instantly between stone, pounds, and kilograms—measurements you'll encounter in UK health information, fitness programmes, and NHS health advice.

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.

What Does 11 Stone 13 Mean for Your Health?

At 11 stone 13 pounds (75.7 kg), your health context depends primarily on your height and overall body composition. The NHS uses BMI (Body Mass Index) as a screening tool to assess weight-related health risk. For example, at 5ft 9in (175 cm), a weight of 11 stone 13 would give a BMI of approximately 25.4, which falls into the overweight category according to NHS guidelines (BMI 25–29.9). At 5ft 5in (165 cm), the same weight would result in a BMI of around 27.8, still overweight. However, BMI has limitations—it does not distinguish between muscle and fat, so athletes or those with high muscle mass may have a higher BMI despite being healthy.

  • For South Asian, Chinese, Black African, or Black Caribbean adults, the NHS recommends lower BMI thresholds, meaning health risk may be higher at the same weight
  • Even modest weight loss of 5–10% body weight can reduce blood pressure, improve blood sugar control, and lower cardiovascular risk
  • Your GP can provide personalised guidance based on your individual health profile, family history, and any weight-related conditions
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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.

Managing Weight in the UK — Tools and Next Steps

If you're at 11 stone 13 and interested in understanding your personal health risk, the first step is to calculate your BMI using our free BMI calculator on this page, entering your exact height. This gives you a baseline. NHS guidance recommends losing weight at a sustainable rate of 0.5–1 kg per week through a combination of reduced-calorie diet and increased physical activity. If you have weight-related health conditions (such as type 2 diabetes, high blood pressure, or sleep apnoea), your GP may discuss weight management strategies or, in some cases, prescription weight loss support through NHS specialist services. The NHS Weight Loss Plan and local weight management programmes offer free or low-cost support across the UK.

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 stone 13 in kilograms?

11 stone 13 pounds equals 75.7 kilograms. To convert, multiply stone by 6.35 and pounds by 0.454, then add them together. Our free weight converter on this page does this instantly.

Is 11 stone 13 considered overweight?

It depends on your height. For most adults, 11 stone 13 falls into the overweight or lower obese range according to NHS BMI categories. Use our BMI calculator above to check your specific BMI and where you sit relative to NHS healthy weight guidelines.

What should I weigh according to NHS guidance?

A healthy BMI (18.5–24.9) varies by height. For a 5ft 9in adult, healthy weight is approximately 8st 8lbs to 11st 6lbs. For 5ft 5in, it's around 7st 13lbs to 10st 5lbs. Your GP or our BMI calculator can give you a personalised healthy weight range.

How much weight would I need to lose to reach a healthy weight?

This depends on your height and current BMI. If you're 5ft 9in at 11st 13, you'd aim for under 11st 6lbs. The NHS recommends losing 0.5–1 kg (1–2 lbs) per week for sustainable, healthy weight loss alongside diet and activity changes.

Where can I get weight management support in the UK?

Start with your GP, who can refer you to NHS weight management services (tier 3 specialist services in your area). Many councils also offer free community weight management programmes. Private support and prescription weight loss medication are available following a clinical assessment.

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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