Stone To Kg Converter
uk weight to metric, stone and pounds to kilograms, body weight conversion
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Guide to Stone and Kilogram Conversions
Understanding Stone and Kilograms
The stone is a unit of weight in the imperial system, primarily used in the United Kingdom and Ireland for measuring body weight. One stone is equal to 14 pounds. The kilogram (kg) is the base unit of mass in the International System of Units (SI) and is used globally for nearly all scientific, commercial, and technical applications. Converting between these units is common for people familiar with the stone system when dealing with metric measurements.
How to Use the Stone to kg Converter
Our two-way converter makes it simple to switch between these weight units:
- To Convert from Stone to kg: Enter the weight in the "Stone" and "Pounds" input fields. The equivalent weight in kilograms will be calculated and displayed automatically in the "Kilograms (kg)" field.
- To Convert from kg to Stone: Enter the weight in the "Kilograms (kg)" input field. The calculator will instantly show the equivalent weight split into stone and pounds in their respective fields.
The calculator updates in real-time as you type, providing immediate results without any extra steps.
The Conversion Formulas
The conversions are based on standard definitions:
- 1 Stone = 14 Pounds (lbs)
- 1 Pound (lb) = 0.45359237 Kilograms (kg)
- 1 Stone = 14 × 0.45359237 kg = 6.35029318 kg
To convert from a total weight in kilograms to stone and pounds, the calculator first converts kilograms to total pounds, then divides by 14 to find the number of full stones, with the remainder being the pounds.
Practical Example
Imagine a person in the UK weighs 11 stone and 6 pounds and wants to know their weight in kilograms for a medical form.
- Input: They enter "11" in the "Stone" box and "6" in the "Pounds" box.
- Calculation: The tool calculates (11 × 14) + 6 = 160 pounds. Then, 160 lbs × 0.453592 = 72.57 kg.
- Result: The "Kilograms (kg)" field will display approximately 72.57 kg.
Conversely, if someone knows their weight is 80 kg, they can enter "80" in the kg field to find it's equivalent to approximately 12 stone and 8.1 pounds.
Related Weight Conversion Tools
- Stone to lbs Converter: For a direct conversion between stone and pounds.
- kg to lbs Converter: The most common international weight conversion.
- BMI Calculator: Calculate your Body Mass Index using either metric or imperial units.
To learn more about the history of the stone unit, you can visit Wikipedia. For official definitions of the kilogram, see the Bureau International des Poids et Mesures (BIPM).
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