KG to Stone and Lbs Converter: NHS Charts & Formulas

If you’ve ever stepped onto a scale in a UK GP surgery or hospital and wondered what your weight really means, you’re not alone. While most of the world talks in kilograms, the NHS still records adult weight in stones and pounds — a system rooted in centuries of British tradition.

1 stone: 6.35029318 kg · 1 stone: 14 pounds · 1 kg: 0.157473 stone · 60 kg range: 9 stone 6–13 lbs · 80 kg range: 12 stone 8–13 lbs

Kg to stone and pounds NHS

The National Health Service maintains a network of weight conversion charts across its trusts — not a single unified document, but a consistent standard applied by hospitals, GP surgeries, and community health teams throughout the UK. These charts place kilograms alongside their stone and pounds equivalents, giving clinical staff a reliable reference for everything from routine weigh-ins to malnutrition screening. The UHSussex NHS Weight Conversion Chart (published 2023) and the NHSGGC Height and Weight Conversion Chart (updated 2022-10-28) are two of the most detailed examples, covering ranges from under 40 kg to over 100 kg with clinical precision.

NHS weight conversion charts

NHS trusts publish these charts for a practical reason: while UK law mandates metric units for official measurements, healthcare professionals routinely interact with patients who grew up thinking in stones and pounds. The Healthy Weight Grampian NHS chart starts conversions from 44.5 kg, covering the most common adult weight range seen in primary care. Community Pharmacy Scotland NHS includes a combined height-and-weight conversion chart that lets pharmacists pull both measurements in a single consultation.

• UHSussex NHS Weight Conversion Chart — adult kg to st/lb table
• Healthy Weight Grampian NHS — weight management focus, starts 44.5 kg
• NHS BMI Calculator — kg-based healthy weight assessment

How to read stone lb tables

NHS charts typically display three columns: kilograms (kg), stones (st), and pounds (lb). Some tables round to the nearest whole pound for clinical readability, while others show decimal fractions for precision. The Leicestershire Hospitals NHS provides an online conversion tool specifically for malnutrition screening, where exact figures matter for nutritional interventions. Brigham and Women’s Hospital (a US institution) takes a different approach entirely, using grams to pounds and ounces for neonatal intensive care — a reminder that even within healthcare, conversion scales vary by department and patient group.

60 kg in stone and pounds

The most-searched weight on this topic, 60 kg sits in the middle of the healthy BMI range for many adults. Depending on which chart you consult, you’ll find slightly different rounded values — and both are correct within their context.

Step-by-step conversion

To convert 60 kg manually, multiply by the stone factor: 60 × 0.157473 = 9.447 stones. The integer portion is your stones (9 st), and the decimal (0.447) multiplied by 14 gives your remaining pounds: 0.447 × 14 = 6.26 lb. So 60 kg ≈ 9 stone 6.3 lb according to the precise calculation.

NHS charts handle this differently. The UHSussex NHS chart lists 60 kg as 9 stone 11 lb — a rounded figure that clinical staff find easier to communicate. The difference of about 0.5 lb is clinically negligible for most purposes, but it matters in malnutrition screening or medication dosing where precision counts.

Chart lookup

The pattern is consistent: NHS charts round up to the nearest whole or half-pound, while independent converters preserve decimal precision. For personal tracking, the precise value gives you more control. For a hospital appointment, ask which rounding convention your trust uses.

10 kg in stone and pounds

At 10 kg, you’re looking at the lower end of the conversion scale — relevant for parents tracking a growing child, or anyone curious about smaller weight references in the UK system.

Exact calculation

Using the formula: 10 × 0.157473 = 1.57473 stones. The integer portion gives you 1 stone, and 0.57473 × 14 = 8.05 lb. So 10 kg = 1 stone 8 lb to practical precision. The Calculator Site confirms this as the standard conversion used across UK health services.

In the reverse direction, 1 stone 0 lb = 6.35 kg according to Manchester University’s conversion chart, while the precise value from The Calculator Site extends this to 6.35029318 kg. For most purposes, 6.35 kg is sufficient — the additional decimal places matter only in scientific or pharmaceutical contexts.

Common use cases

• Baby and toddler weights (healthy infants often measured against 10 kg milestones)
• Small adult weights under 7 stone (below 44.5 kg)
• Luggage and baggage allowances that specify stone-based limits

Stone and pounds dominate UK clinical pediatrics. Knowing that 10 kg = 1 stone 8 lb helps parents read NHS growth charts without needing a separate conversion tool.

80 kg in stone and pounds

80 kg is a common reference point for average adult male weight in the UK — and a threshold that often triggers BMI classification discussions in primary care.

Precise values

Calculated precisely: 80 × 0.157473 = 12.59784 stones = 12 st 8.37 lb. The Calculator Site rounds this to 12 stone 8.4 lb. NHS charts typically list this as 12 stone 8 lb, a difference of less than half a pound that has minimal clinical impact.

The NHS BMI calculator (NHS) classifies 80 kg differently depending on height: a 5’10” adult at 80 kg falls in the overweight category, while the same weight on a 6’2″ frame stays within healthy range. This context is why NHS charts exist — to help clinicians and patients have accurate conversations about weight in relation to height.

Health context

The Barnsley CCG NHS BMI chart uses stones alongside kilograms, designed specifically for conversations about healthy weight ranges. The chart makes clear that “healthy” isn’t a single number — it varies by height, age, and individual factors. For an adult male at average UK height (5’9″), 80 kg typically lands at the upper end of the overweight BMI category, prompting conversations about diet, exercise, or further assessment.

80 kg sits near the boundary between overweight and healthy weight for many UK adults. The precise stone conversion matters less than understanding that this weight sits in a range where clinical guidance recommends conversation with a GP.

10 stone in kg

If you’re reading NHS weight records and see 10 stone, here’s how to put it in metric terms — and why reverse conversion matters in healthcare settings.

Reverse conversion

10 stone × 6.35 kg = 63.50 kg exactly. The Community Pharmacy Scotland NHS chart confirms this: 63.5 kg = 10 stone 0 lbs. This reverse calculation is essential when filling out forms that require kilograms — travel insurance medical declarations, certain job applications, or international healthcare records.

The precise value extends to 6.35029318 kg per stone, which gives 10 stone = 63.5029318 kg. Rounded to two decimal places, that’s 63.50 kg — the value you’ll see on most NHS charts.

Other common reverse conversions

• 2 stone = 12.70 kg (6.35 × 2)
• 6 stone = 38.10 kg (confirmed by UHSussex NHS)
• 75 kg = 11 stone 11 lbs approximately

Neonatal units use a different scale entirely: the Neonatal Networks Southeast NHS chart (published December 2023) converts grams directly to pounds and ounces, serving parents who receive their baby’s weight in metric but want imperial equivalents for family communication. This divergence — adult NHS using stones, neonatal using pounds/ounces — reflects the different needs of each patient population.

Kg to Stone Conversion Chart (Quick Reference)

These seven conversions cover the most common weights UK patients encounter in clinical settings.

How to Convert: Step by Step

Follow these three steps to convert any weight between kg and stone with confidence.

The Calculator Site confirms: “There are 6.35029318 kg in one stone. In turn, one stone is equal to 14 pounds (avoirdupois).” This precise definition underpins every calculation in UK clinical practice.

Kg to Stone vs Stone to Kg: Comparison

Both directions use the same conversion factor but applied differently — and each has practical advantages depending on context.

Choose your conversion direction based on what the receiving system expects. NHS clinical records want stones and pounds; international medical forms need kilograms; pharmacy calculations often require the decimal precision of both combined.

Why the UK Uses Stone (and What It Means for You)

Stone is a traditional UK unit of 14 pounds used in NHS weight charts — a legacy system that persists despite decades of metric adoption elsewhere. Multiple NHS trusts publish identical conversion values confirming standardization across the service. The NHS BMI calculator uses kilograms for its calculation, but the accompanying interpretation charts often display results in stones to match patient familiarity.

For patients, this means you may receive your weight in stones during a GP appointment but need to convert to kilograms for private health insurance, travel insurance medical forms, or any international healthcare record. The formula is straightforward (kg × 0.157473 = stones), but NHS charts give you the rounded values that clinical staff actually use — which can differ by a pound or two from the precise calculation.

NHS states: “Check an adult’s or child’s BMI to find out if they’re a healthy weight. It’s important to use the right calculator for adults (aged 18 and over) or children.”

The catch: stone remains embedded in UK clinical culture not because it’s more accurate, but because decades of patient familiarity make it the language of weight conversations in exam rooms and hospital wards. For new arrivals or anyone transitioning between systems, learning the common stone values — 7, 10, 12, 15 stone — gives you enough reference points to follow any clinical discussion.

The standard conversion values have been verified across multiple sources including University of Manchester academic records, The Calculator Site’s tier-2 reference, and direct NHS trust publications. While rounding conventions vary slightly between trusts, the underlying mathematics is consistent: 1 stone = 6.35029318 kg exactly, and this definition anchors every conversion chart in use today.

For anyone using NHS services, the practical takeaway is straightforward: know your stone baseline, understand that clinical rounding may differ slightly from precise calculation, and ask your GP or pharmacist which values your specific trust uses if precision matters for your situation.

Related reading: 73 kg in Stone and Pounds

This converter aligns closely with the NHS charts calculator on Trendy Magazine, both drawing from official NHS charts for precise UK weight conversions.

Frequently asked questions