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
Free tracker included with every download this week
What Is 85 Kg In Stone And Pounds?
85 kilograms is equivalent to 13 stone and 5.3 pounds (or 13st 5lbs). However, what matters most for your health is not just your weight, but your BMI — which depends on your height. At the same weight of 85 kg, different heights produce very different BMI values and health categories. Use our free BMI calculator above to find your personal BMI instantly, or read on to see how 85 kg translates across common UK heights.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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.
85 Kg BMI At Different Heights
To understand what 85 kg means for your health, you need to know your height. Here's how 85 kg converts to BMI at common UK heights:
- 160 cm (5ft 3in): BMI 33.2 — Obese (Class I)
- 165 cm (5ft 5in): BMI 31.2 — Obese (Class I)
- 170 cm (5ft 7in): BMI 29.4 — Overweight
- 175 cm (5ft 9in): BMI 27.8 — Overweight
- 180 cm (5ft 11in): BMI 26.2 — Overweight
- 185 cm (6ft 1in): BMI 24.8 — Healthy weight
These categories follow NHS guidelines. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds — healthy weight typically ends at BMI 22.9 rather than 24.9. Try our BMI calculator on this page to see your exact category based on your actual height.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
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.
NHS Weight Categories And BMI Limitations
NHS BMI categories are: Underweight (below 18.5), Healthy weight (18.5–24.9), Overweight (25.0–29.9), Obese Class I (30.0–34.9), Obese Class II (35.0–39.9), and Severely obese (40.0+). At 85 kg, you'll fall into one of these depending on your height.
Important: BMI has limitations. It doesn't distinguish between muscle and fat — athletes may have high BMI but low body fat. It also ignores where fat is stored (waist measurement matters too). If you're concerned about your weight or health, your GP can give personalised advice. Use our weight converter above to see 85 kg in other units, and our progress tracker to monitor changes over time.
- 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 is 85 kg in stone exactly?
85 kg equals 13 stone and 5.3 pounds (13st 5lbs). To convert kilograms to stone, divide the kg value by 6.35029. At 85 kg ÷ 6.35029 = 13.38 stone, which is 13 stone plus 0.38 × 14 pounds = 5.3 lbs.
Is 85 kg a healthy weight?
This depends entirely on your height. At 85 kg, you could be healthy weight (if you're tall, around 185 cm+), overweight (165–180 cm), or obese (under 165 cm). Use our BMI calculator above with your height to find out your personal category according to NHS guidelines.
How many pounds is 85 kg?
85 kg equals approximately 187.4 pounds. However, in the UK, weight is typically expressed in stone and pounds (13st 5lbs) rather than just pounds. Our weight converter on this page can switch between all units instantly.
What is the healthy weight range at my height if I weigh 85 kg?
A healthy BMI range (18.5–24.9) corresponds to different weights at different heights. For example, at 175 cm (5ft 9in), healthy weight is 56–76 kg. At 180 cm (5ft 11in), it's 60–81 kg. Your GP or our BMI calculator can tell you your target range based on your actual height.
Can I lose weight from 85 kg safely?
The NHS recommends losing no more than 0.5–1 kg per week for sustainable results. This requires a calorie deficit of roughly 500 kcal per day. If you're interested in structured support, your GP can refer you to NHS weight management services, or you can explore evidence-based approaches like dietary changes and increased physical activity.
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.