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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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46 Kg in Stones and Pounds — Quick Conversion Guide

46 kg is equal to 7 stone and 3.3 pounds (or 7st 3.3lbs). If you need to convert kilograms to stone for health tracking, medical records, or everyday use in the UK, this guide explains the conversion and what it means for your weight in context. Use our free weight converter above to switch between metric and imperial measurements instantly, or read on to understand the conversion formula and how this weight compares to NHS healthy weight ranges.

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.

46 Kg to Stone and Pounds — Exact Conversion

46 kg = 7 stone 3.3 pounds (7st 3.3lbs)

To convert kilograms to stone, divide the kilogram value by 6.35029. For 46 kg: 46 ÷ 6.35029 = 7.25 stone. To then convert the decimal portion to pounds, multiply 0.25 by 14 (since 1 stone = 14 pounds): 0.25 × 14 = 3.3 pounds.

Nearby conversion values:

  • 42 kg = 6st 9.2lbs
  • 44 kg = 6st 13.1lbs
  • 45 kg = 7st 1.2lbs
  • 46 kg = 7st 3.3lbs
  • 47 kg = 7st 5.4lbs
  • 48 kg = 7st 7.5lbs
  • 50 kg = 7st 11.8lbs

The stone to kg formula works the reverse way: multiply stone by 6.35029 to get kilograms. This metric to imperial weight conversion is essential for understanding UK health records and NHS weight guidance.

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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.

46 Kg BMI and Healthy Weight Context

At 46 kg, your BMI depends entirely on your height. For example, at an average UK adult female height of 161.6 cm (5ft 3in), 46 kg gives a BMI of approximately 17.7, which falls in the healthy weight range (18.5–24.9 according to NHS guidelines). However, at 150 cm (4ft 11in), the same weight would give a BMI of 20.5 — still healthy. Use our free BMI calculator above to find your personal BMI instantly and see where you sit on the NHS weight scale. If you're significantly lighter or heavier than average for your height, your GP can provide personalised advice on what's healthy for you.

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 46 kg in stones and pounds?

46 kg equals 7 stone 3.3 pounds (7st 3.3lbs). To convert, divide kilograms by 6.35029 to get stone, then multiply the decimal part by 14 to get pounds. The weight converter on this page can calculate this instantly for any kilogram value.

Is 46 kg a healthy weight?

Whether 46 kg is healthy depends on your height and age. For most adult women around average UK height (5ft 3in), 46 kg would be in the healthy BMI range. Use the BMI calculator on this page to check your personal result, then discuss any concerns with your GP.

What's the formula to convert kg to stone?

Divide kilograms by 6.35029 to get stone. For example, 46 ÷ 6.35029 = 7.25 stone. The decimal (0.25) converts to pounds by multiplying by 14: 0.25 × 14 = 3.3 pounds. Use our weight converter for instant calculations.

How do I convert 46 kg to pounds only?

Multiply kilograms by 2.20462 to get pounds. For 46 kg: 46 × 2.20462 = 101.4 pounds. Our weight converter supports conversion between kg, stone, and pounds, so you can switch between units instantly.

Is 46 kg underweight for adults?

At 46 kg, you're likely in a healthy weight range if you're of average or shorter height. However, being underweight (BMI below 18.5) can occur at this weight if you're very tall. Your GP can advise whether your weight is appropriate for your individual height, age, and health.

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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