Kilograms to Pounds Converter
Convert kilograms to pounds (kg to lbs) and pounds to kilograms (lbs to kg) instantly using this accurate UK-focused converter. Includes stone and pounds output for body weight, plus a full conversion table from 1 kg to 200 kg. One kilogram equals exactly 2.20462 pounds.
Kilograms ↔ Pounds ↔ Stones Converter
Enter a value in any field and press Convert.
Conversion Formulas
lbs to kg: kg = lbs ÷ 2.20462
kg to stones: stones = kg ÷ 6.35029
kg to stones & lbs: total_lbs = kg × 2.20462; stones = floor(total_lbs ÷ 14); lbs_remainder = total_lbs mod 14
stones to kg: kg = stones × 6.35029
Key Reference Values
1 pound = 0.453592 kg • 1 stone = 6.35029 kg = 14 lbs • 1 oz = 28.3495 g
Complete kg to lbs and Stones Conversion Table (1 kg – 200 kg)
This three-column table shows kilograms, pounds, and stones & pounds side-by-side — the format most useful for UK users checking body weight or comparing metric and imperial measurements.
| Kilograms (kg) | Pounds (lbs) | Stones & Pounds |
|---|---|---|
| 1 kg | 2.205 lbs | 0 st 2.2 lb |
| 2 kg | 4.409 lbs | 0 st 4.4 lb |
| 3 kg | 6.614 lbs | 0 st 6.6 lb |
| 4 kg | 8.818 lbs | 0 st 8.8 lb |
| 5 kg | 11.023 lbs | 0 st 11.0 lb |
| 6 kg | 13.228 lbs | 0 st 13.2 lb |
| 7 kg | 15.432 lbs | 1 st 1.4 lb |
| 8 kg | 17.637 lbs | 1 st 3.6 lb |
| 9 kg | 19.842 lbs | 1 st 5.8 lb |
| 10 kg | 22.046 lbs | 1 st 8.0 lb |
| 12 kg | 26.455 lbs | 1 st 12.5 lb |
| 14 kg | 30.865 lbs | 2 st 2.9 lb |
| 15 kg | 33.069 lbs | 2 st 5.1 lb |
| 16 kg | 35.274 lbs | 2 st 7.3 lb |
| 18 kg | 39.683 lbs | 2 st 11.7 lb |
| 20 kg | 44.092 lbs | 3 st 2.1 lb |
| 22 kg | 48.502 lbs | 3 st 6.5 lb |
| 25 kg | 55.116 lbs | 3 st 13.1 lb |
| 28 kg | 61.729 lbs | 4 st 5.7 lb |
| 30 kg | 66.139 lbs | 4 st 12.1 lb |
| 32 kg | 70.548 lbs | 5 st 0.5 lb |
| 35 kg | 77.162 lbs | 5 st 7.2 lb |
| 38 kg | 83.776 lbs | 5 st 13.8 lb |
| 40 kg | 88.185 lbs | 6 st 4.2 lb |
| 42 kg | 92.594 lbs | 6 st 8.6 lb |
| 45 kg | 99.208 lbs | 7 st 1.2 lb |
| 48 kg | 105.822 lbs | 7 st 7.8 lb |
| 50 kg | 110.231 lbs | 7 st 12.2 lb |
| 52 kg | 114.640 lbs | 8 st 2.6 lb |
| 54 kg | 119.050 lbs | 8 st 7.1 lb |
| 55 kg | 121.254 lbs | 8 st 9.3 lb |
| 56 kg | 123.459 lbs | 8 st 11.5 lb |
| 58 kg | 127.868 lbs | 9 st 1.9 lb |
| 60 kg | 132.277 lbs | 9 st 6.3 lb |
| 62 kg | 136.687 lbs | 9 st 10.7 lb |
| 64 kg | 141.096 lbs | 10 st 1.1 lb |
| 65 kg | 143.300 lbs | 10 st 3.3 lb |
| 66 kg | 145.505 lbs | 10 st 5.5 lb |
| 68 kg | 149.914 lbs | 10 st 9.9 lb |
| 70 kg | 154.324 lbs | 11 st 0.3 lb |
| 72 kg | 158.733 lbs | 11 st 4.7 lb |
| 74 kg | 163.142 lbs | 11 st 9.1 lb |
| 75 kg | 165.347 lbs | 11 st 11.3 lb |
| 76 kg | 167.551 lbs | 11 st 13.6 lb |
| 78 kg | 171.961 lbs | 12 st 3.9 lb |
| 80 kg | 176.370 lbs | 12 st 8.4 lb |
| 82 kg | 180.779 lbs | 12 st 12.8 lb |
| 84 kg | 185.188 lbs | 13 st 3.2 lb |
| 85 kg | 187.393 lbs | 13 st 5.4 lb |
| 86 kg | 189.598 lbs | 13 st 7.6 lb |
| 88 kg | 194.007 lbs | 13 st 12.0 lb |
| 90 kg | 198.416 lbs | 14 st 2.4 lb |
| 92 kg | 202.825 lbs | 14 st 6.8 lb |
| 94 kg | 207.235 lbs | 14 st 11.2 lb |
| 95 kg | 209.440 lbs | 14 st 13.4 lb |
| 96 kg | 211.644 lbs | 15 st 1.6 lb |
| 98 kg | 216.053 lbs | 15 st 6.1 lb |
| 100 kg | 220.462 lbs | 15 st 10.5 lb |
| 105 kg | 231.485 lbs | 16 st 7.5 lb |
| 110 kg | 242.508 lbs | 17 st 4.5 lb |
| 115 kg | 253.531 lbs | 18 st 1.5 lb |
| 120 kg | 264.555 lbs | 18 st 12.6 lb |
| 125 kg | 275.578 lbs | 19 st 9.6 lb |
| 130 kg | 286.601 lbs | 20 st 6.6 lb |
| 135 kg | 297.624 lbs | 21 st 3.6 lb |
| 140 kg | 308.647 lbs | 22 st 0.6 lb |
| 145 kg | 319.670 lbs | 22 st 11.7 lb |
| 150 kg | 330.693 lbs | 23 st 8.7 lb |
| 155 kg | 341.717 lbs | 24 st 5.7 lb |
| 160 kg | 352.740 lbs | 25 st 2.7 lb |
| 165 kg | 363.763 lbs | 25 st 13.8 lb |
| 170 kg | 374.786 lbs | 26 st 10.8 lb |
| 175 kg | 385.809 lbs | 27 st 7.8 lb |
| 180 kg | 396.832 lbs | 28 st 4.8 lb |
| 185 kg | 407.855 lbs | 29 st 1.9 lb |
| 190 kg | 418.878 lbs | 29 st 12.9 lb |
| 195 kg | 429.902 lbs | 30 st 9.9 lb |
| 200 kg | 440.924 lbs | 31 st 6.9 lb |
Body Weight & BMI Context Table
BMI (Body Mass Index) is calculated as weight in kg divided by height in metres squared (kg/m²). The NHS uses BMI as a general indicator of healthy weight for adults. The table below shows BMI ranges in both kg and lbs for a person of average UK height (5ft 9in / 175 cm for men; 5ft 4in / 163 cm for women).
BMI Weight Ranges for a Person 175 cm (5ft 9in) Tall
| BMI Category | BMI Range | Weight in kg | Weight in lbs | Stones & lbs |
|---|---|---|---|---|
| Underweight | Below 18.5 | Below 56.7 kg | Below 125.0 lbs | Below 8 st 13 lb |
| Healthy weight | 18.5 – 24.9 | 56.7 – 76.3 kg | 125.0 – 168.2 lbs | 8 st 13 lb – 12 st 0 lb |
| Overweight | 25.0 – 29.9 | 76.6 – 91.6 kg | 168.9 – 201.9 lbs | 12 st 1 lb – 14 st 6 lb |
| Obese (Class I) | 30.0 – 34.9 | 91.9 – 106.9 kg | 202.5 – 235.7 lbs | 14 st 7 lb – 16 st 12 lb |
| Severely Obese (Class II) | 35.0+ | 107.2 kg+ | 236.3 lbs+ | 16 st 13 lb+ |
BMI Weight Ranges for a Person 163 cm (5ft 4in) Tall
| BMI Category | BMI Range | Weight in kg | Weight in lbs | Stones & lbs |
|---|---|---|---|---|
| Underweight | Below 18.5 | Below 49.2 kg | Below 108.5 lbs | Below 7 st 10 lb |
| Healthy weight | 18.5 – 24.9 | 49.2 – 66.2 kg | 108.5 – 146.0 lbs | 7 st 10 lb – 10 st 6 lb |
| Overweight | 25.0 – 29.9 | 66.5 – 79.5 kg | 146.6 – 175.3 lbs | 10 st 7 lb – 12 st 7 lb |
| Obese (Class I) | 30.0 – 34.9 | 79.8 – 92.8 kg | 175.9 – 204.6 lbs | 12 st 8 lb – 14 st 9 lb |
| Severely Obese (Class II) | 35.0+ | 93.1 kg+ | 205.3 lbs+ | 14 st 9 lb+ |
Common Body Weight Conversions (UK Context)
In the UK, body weight is commonly discussed in stones and pounds informally, while medical and official measurements use kilograms. Here are the most searched body weight conversions:
| kg | lbs | Stone & lb | Context |
|---|---|---|---|
| 45 kg | 99.2 lbs | 7 st 1 lb | Lower end healthy adult |
| 50 kg | 110.2 lbs | 7 st 12 lb | Lightweight adult |
| 57 kg | 125.7 lbs | 8 st 14 lb | Average UK female (2023 ONS) |
| 60 kg | 132.3 lbs | 9 st 6 lb | Common target weight |
| 70 kg | 154.3 lbs | 11 st 0 lb | Average UK adult |
| 75 kg | 165.3 lbs | 11 st 11 lb | UK male average |
| 83.6 kg | 184.3 lbs | 13 st 2 lb | Average UK male (2023 ONS) |
| 90 kg | 198.4 lbs | 14 st 2 lb | Overweight threshold (varies by height) |
| 100 kg | 220.5 lbs | 15 st 10 lb | Weight loss milestone |
| 127 kg | 280.0 lbs | 20 st 0 lb | Bariatric consideration threshold |
Cooking Weight Conversions: Metric vs Imperial
Food packaging in the UK uses both metric (grams/kg) and occasionally imperial (oz/lb) measurements. Many older UK recipes still use imperial, while modern recipes use metric. Here are the most common cooking weight conversions:
| Metric | Imperial (oz/lb) | Common Cooking Use |
|---|---|---|
| 25 g | 0.88 oz (~1 oz) | Spices, small quantities |
| 50 g | 1.76 oz | Nuts, cheese serving |
| 100 g | 3.53 oz | Nutrition label serving size, chocolate |
| 115 g | 4 oz (quarter lb) | Classic recipe portions |
| 125 g | 4.41 oz | Butter portion, yogurt pot |
| 150 g | 5.29 oz | Meat serving, pasta portion |
| 200 g | 7.05 oz | Cereal, rice portion |
| 225 g | 8 oz (half lb) | Classic recipe unit, butter block |
| 250 g | 8.82 oz | Mince portion, cheese block |
| 340 g | 12 oz (three-quarter lb) | Steak, chicken breast |
| 400 g | 14.11 oz | Tinned tomatoes, beans |
| 450 g | 1 lb | Standard meat/fish portion |
| 500 g | 1 lb 1.6 oz | Mince, pasta, flour bags |
| 680 g | 1 lb 8 oz (1.5 lb) | Chicken breast pack |
| 900 g | 2 lb | Roasting chicken portions |
| 1 kg | 2 lb 3.3 oz | Standard bag of flour/sugar/rice |
| 1.5 kg | 3 lb 4.9 oz | Medium chicken, joint of lamb |
| 2 kg | 4 lb 6.5 oz | Large roasting joint |
| 3 kg | 6 lb 9.9 oz | Turkey crown, whole chicken |
| 5 kg | 11 lb 0.2 oz | Large bags of potatoes, bulk ingredients |
UK Baby Birth Weight Reference Chart
UK NHS hospitals record all birth weights in kilograms. The average UK birth weight is approximately 3.4 kg (7 lb 8 oz). Parents are often told the weight in both kg and lbs/oz. The table below covers the typical range at birth.
| Birth Weight (kg) | Pounds & Oz | Stones & lbs | NHS Category |
|---|---|---|---|
| 1.5 kg | 3 lb 5.1 oz | 0 st 3.3 lb | Very low birth weight (<1.5 kg) |
| 2.0 kg | 4 lb 6.5 oz | 0 st 4.4 lb | Low birth weight (<2.5 kg) |
| 2.2 kg | 4 lb 13.6 oz | 0 st 4.9 lb | Low birth weight |
| 2.5 kg | 5 lb 8.2 oz | 0 st 5.5 lb | Lower boundary of normal |
| 2.7 kg | 5 lb 15.3 oz | 0 st 6.0 lb | Normal |
| 3.0 kg | 6 lb 9.9 oz | 0 st 6.6 lb | Normal |
| 3.2 kg | 7 lb 0.9 oz | 0 st 7.1 lb | Normal |
| 3.4 kg | 7 lb 8.0 oz | 0 st 7.5 lb | UK average |
| 3.5 kg | 7 lb 11.5 oz | 0 st 7.7 lb | Normal |
| 3.7 kg | 8 lb 2.6 oz | 0 st 8.2 lb | Normal (upper range) |
| 4.0 kg | 8 lb 13.1 oz | 0 st 8.8 lb | Normal (upper range) |
| 4.3 kg | 9 lb 7.7 oz | 0 st 9.5 lb | Normal (upper boundary) |
| 4.5 kg | 9 lb 14.8 oz | 0 st 9.9 lb | Upper boundary of normal |
| 4.7 kg | 10 lb 6.0 oz | 0 st 10.4 lb | Macrosomia (>4.5 kg) |
| 5.0 kg | 11 lb 0.2 oz | 0 st 11.0 lb | Macrosomia (high) |
UK vs US vs Metric Weight Conventions
Weight measurement varies considerably between countries and contexts. Understanding these conventions avoids confusion when using recipes, medical records, or international product labels.
| Country / Context | Body Weight | Food / Cooking | Packages / Goods | Medical / Clinical |
|---|---|---|---|---|
| United Kingdom | Stones & pounds (informal); kg (official) | Grams & kg (metric) | Grams & kg | Kilograms |
| United States | Pounds and ounces | Cups, ounces, pounds | Ounces & pounds (also metric on labels) | Kilograms (hospitals); pounds (patients) |
| Continental Europe | Kilograms | Grams & kg | Grams & kg | Kilograms |
| Australia / NZ | Kilograms | Grams & kg | Grams & kg | Kilograms |
| Canada | Pounds (informal); kg (official) | Both metric and imperial | Both metric and imperial | Kilograms |
| Ireland | Stones & pounds (informal); kg (official) | Grams & kg | Grams & kg | Kilograms |
How to Convert Manually: Step-by-Step
Converting kg to lbs
2. Multiply by 2.20462
3. 68 × 2.20462 = 149.914 lbs
Quick shortcut: multiply by 2.2 for an approximation (68 × 2.2 = 149.6 — close enough for everyday use)
Converting kg to stones and pounds
2. Divide by 14 to get stones: 149.914 ÷ 14 = 10.708
3. Whole stones = 10
4. Remaining lbs = 0.708 × 14 = 9.9 lb
Result: 10 stone 9.9 lb
Converting lbs to kg
2. Divide by 2.20462
3. 175 ÷ 2.20462 = 79.379 kg
Converting stones to kg
2. Add any extra lbs
3. Divide total lbs by 2.20462
Example: 12 stone 4 lb = (12 × 14) + 4 = 172 lbs ÷ 2.20462 = 78.02 kg
Worked Examples
Example 1: 85 kg to lbs and stones
In stones: 187.393 ÷ 14 = 13.385 = 13 stone 5.4 lb
Example 2: 175 lbs to kg
Example 3: A 3.6 kg newborn in lbs and oz
Whole pounds = 7; Ounces = 0.9366 × 16 = 14.99 oz ≈ 15 oz
Result: 7 lbs 15 oz
Example 4: 14 stone 7 lb to kg
kg = 203 ÷ 2.20462 = 92.08 kg
Why the UK Uses Both kg and Pounds
The UK officially adopted the metric system in 1965 and completed metrication for most purposes by the 1990s. However, body weight remains one area where imperial units (stones and pounds) persist strongly in everyday speech. A 2019 YouGov survey found that over 70% of British adults still think of their own weight in stones and pounds rather than kilograms.
The NHS and medical professionals record weight in kilograms because it integrates directly with BMI calculations and drug dosing formulas. UK supermarkets and food packaging use grams and kilograms mandated by UK/EU law. But ask a British person how much they weigh and most will tell you in stones and pounds.
This dual-convention causes frequent confusion: a person told they weigh "75 kilos" by their doctor may have no instinctive sense of whether that is healthy — but tell them "11 stone 11 pounds" and the number is immediately contextualised.
Frequently Asked Questions
How many pounds are in 1 kilogram?
1 kilogram equals 2.20462 pounds exactly. This is defined by the international pound (0.45359237 kg). For everyday use, 1 kg ≈ 2.205 lbs is sufficient. To go the other way: 1 pound = 0.4536 kg.
How do I convert kg to stones and pounds?
Multiply kg by 2.20462 to get total pounds. Divide total pounds by 14 for whole stones. The remaining decimal × 14 gives remaining pounds. For example, 75 kg × 2.20462 = 165.347 lbs ÷ 14 = 11 remainder 11.3, giving 11 stone 11.3 lb.
What is 70 kg in pounds?
70 kg equals 154.324 pounds (lbs). In stones and pounds, 70 kg is 11 stone 0.3 lb — essentially exactly 11 stone. This is approximately the average adult body weight in the UK for people of mid-range height.
What is 100 kg in stones and pounds?
100 kg equals 220.462 lbs, which converts to 15 stone 10.5 lb. This is a commonly cited weight loss goal — losing weight to get below 100 kg / below 16 stone is a milestone for many people on a weight loss journey.
How much is 1 stone in kg?
1 stone equals exactly 6.35029 kg, or 14 pounds. The stone is a traditional British unit still used informally for body weight throughout the UK and Ireland. It is not used officially in science or medicine, where kilograms are universal.
Why does the UK use both kg and pounds?
The UK officially uses the metric system (kg) for most purposes, but imperial units (stones and pounds) remain culturally ingrained for body weight. Metrication of food packaging was completed in 2000, but no law prevents people discussing their weight in stones. NHS medical records use kilograms; most British people still quote their weight in stones and pounds.
Is the US pound the same as the UK pound?
Yes. Both the USA and UK use the avoirdupois pound, defined as exactly 0.45359237 kg. This is the standard pound for everyday weight. The troy pound (used for precious metals like gold) is different at 0.3732417 kg — but this is never used for body weight or food.
What are UK hospital birth weights in kg?
UK hospitals record birth weights in kilograms. The average UK newborn weighs around 3.4 kg (7 lb 8 oz). Babies between 2.5 kg (5 lb 8 oz) and 4.5 kg (9 lb 15 oz) are considered normal weight. Below 2.5 kg is classified as low birth weight; above 4.5 kg is macrosomia.
How do I convert 500g to ounces?
500 grams equals 17.637 ounces (oz) because 1 gram = 0.035274 oz. In pounds and ounces, 500 g = 1 lb 1.6 oz. This is relevant for UK cooking recipes that still use imperial measurements.
What is the quickest mental shortcut for kg to lbs?
Multiply by 2 and add 10%: For 70 kg — 70 × 2 = 140, then add 10% (14) = 154. The true answer is 154.324, so this method gives an error of under 0.2%. For stones, divide kg by 6.35 — or more roughly, divide by 6 and knock off a fraction.