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
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What's 117 Pounds in Kg? BMI at Different Heights
117 pounds converts to approximately 53.1 kg using the standard kilogram conversion. However, your BMI — and whether this weight is healthy for you — depends entirely on your height. The same weight can be a healthy range for one person and overweight for another. Using our free BMI calculator above, you can instantly discover your personal BMI and see where it falls within NHS guidelines. This guide shows you exactly what BMI 53.1 kg gives at various UK heights, helping you understand your weight in health context.
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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.
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 53.1 kg (117 Pounds) — Height Comparison Table
At 53.1 kg (117 pounds), your BMI varies significantly depending on height. Here are typical examples using the BMI formula: weight in kg ÷ height in metres squared:
- 5ft 0in (152cm): BMI 23.0 — Healthy weight (NHS range 18.5–24.9)
- 5ft 2in (157cm): BMI 21.5 — Healthy weight
- 5ft 4in (163cm): BMI 20.0 — Healthy weight
- 5ft 6in (168cm): BMI 18.8 — Healthy weight
- 5ft 8in (173cm): BMI 17.8 — Underweight (below 18.5)
- 5ft 10in (178cm): BMI 16.8 — Underweight
If you're significantly shorter or taller than these examples, use the metric to imperial weight conversion to check your exact height, then calculate your personal BMI using the free tool on this page.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
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.
Understanding NHS BMI Categories and Limitations
The NHS BMI categories are: Underweight (below 18.5), Healthy weight (18.5–24.9), Overweight (25.0–29.9), and Obese (30.0+). However, BMI has important limitations — it doesn't distinguish between muscle and fat, so athletes may have a high BMI despite low body fat. BMI also ignores waist circumference, which is a crucial indicator of health risk. For South Asian, Chinese, Black African, or Black Caribbean adults, the NHS recommends lower thresholds: overweight starts at BMI 23.0 and obese at BMI 27.5. Your GP can provide personalised guidance on what your BMI means for your individual health, especially if you have weight-related health conditions.
- 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
- 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
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.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, 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.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- 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 does 117 pounds equal in kilograms?
117 pounds equals 53.1 kg exactly. To convert any pounds to kilograms, divide by 2.20462. To convert kilograms to stone, divide by 6.35. You can use our free weight converter above to switch between kg, stone, and pounds instantly.
Is 53.1 kg a healthy weight?
It depends entirely on your height. At 53.1 kg, someone who is 5ft 4in has a healthy BMI of 20.0, but someone who is 5ft 10in would be underweight with a BMI of 16.8. Use our free BMI calculator on this page to check your personal BMI and NHS category.
How do I convert stone and pounds to kilograms?
Multiply stone by 6.35029 and pounds by 0.453592, then add them together. For example, 8 stone 5 pounds = (8 × 6.35) + (5 × 0.454) = 52.7 kg. Our weight converter above does this instantly.
What BMI range is healthy according to the NHS?
The NHS defines healthy weight as BMI 18.5 to 24.9 for most adults. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the healthy range is 18.5 to 22.9. Your GP can advise if your BMI is healthy for your personal circumstances.
Why does BMI matter if it has limitations?
BMI is a useful screening tool that helps identify health risk at population level. However, it should be combined with other measures like waist circumference and your GP's clinical assessment. It doesn't account for muscle mass, age, or ethnicity-specific risk factors — so personal medical advice is always important.
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.