1. What is a Stone to kg Calculator?

Definition: This calculator converts weight measurements from stones (UK imperial unit) to kilograms (metric unit).

Purpose: It helps people in the UK and other regions that use stones for body weight to convert to the more universally used kilograms.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• kg — Kilograms (metric unit of mass)
• Stones — Imperial unit of weight (UK measurement)
• 6.35029 — Conversion factor (1 stone = 6.35029 kg)

Explanation: The number of stones is multiplied by the fixed conversion factor to get the equivalent weight in kilograms.

3. Importance of Stone to kg Conversion

Details: This conversion is particularly important in the UK where body weight is often measured in stones, while medical and scientific measurements typically use kilograms.

4. Using the Calculator

Tips: Simply enter the weight in stones (can use decimal points for fractions of a stone) and click calculate. The result will show the equivalent weight in kilograms.

5. Frequently Asked Questions (FAQ)

Q1: Why is 1 stone equal to 6.35029 kg?
A: This is the internationally agreed conversion factor based on the definition of the stone as 14 pounds and the pound as exactly 0.45359237 kg.

Q2: Is the stone measurement used outside the UK?
A: The stone is primarily used in the UK and Ireland for body weight measurement. Most other countries use kilograms exclusively.

Q3: How accurate is this conversion?
A: The conversion is mathematically exact as it uses the defined conversion factor. Results are accurate to the number of decimal places you enter.

Q4: Can I convert kg back to stones?
A: Yes, you would divide the kilograms by 6.35029 to get stones. Some calculators offer bidirectional conversion.

Q5: Why do some people use stones and pounds?
A: In the UK, it's common to express body weight in stones and pounds (1 stone = 14 pounds). For example, 11 stone 6 pounds means 11 stones plus 6 pounds.