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Stones to Kilograms Converter

Convert stones to kilograms and kilograms to stones instantly. Bidirectional body weight converter with formula and common values.

st

Kilograms

79.3786

kg

12.5 st = 79.3786 kg

kg = st × 6.35029

Stones to Kilograms: 1 st equals 6.35029 kg. To convert stones to kilograms, multiply by 6.35029 (kg = st × 6.35029). For example, 10 st = 63.5029 kg.

How to Convert Stones to Kilograms

To convert from stones to kilograms, multiply the value by 6.35029. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Stones to Kilograms: kg = st × 6.35029
  • Kilograms to Stones: st = kg ÷ 6.35029

Stones to Kilograms Conversion Chart

Stones (st)Kilograms (kg)
0.10.635029
0.251.587573
0.53.175145
16.35029
212.70058
319.05087
531.75145
1063.5029
20127.0058
25158.75725
50317.5145
100635.029
2501587.5725
10006350.29

Understanding the Units

What is a Stone?

The stone is a UK imperial unit equal to exactly 14 pounds, or 6.35029318 kilograms.

Common contexts: UK body weight.

What is a Kilogram?

The kilogram is the SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.

From the French kilogramme adopted in 1795; previously defined by the International Prototype Kilogram in Paris until 2019.

Common contexts: science, commerce, health.

Real-World Reference Points

Item Stones (st) Kilograms (kg)
A liter of water0.15751
Newborn baby (average)0.55123.5
Bag of flour0.35752.27

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FAQ

How many kilograms in a stone?

One stone equals approximately 6.35029 kilograms.

How do I convert stones to kilograms?

Multiply the stone value by 6.35029. For example, 12.5 st = 79.379 kg.

What is a stone?

The stone (st) is a British Imperial unit equal to 14 pounds (6.35029 kg). It is commonly used in the UK and Ireland for body weight.

How do I express stones and pounds in kg?

Convert the stone part to kg (× 6.35029), convert remaining pounds to kg (× 0.453592), and add them together. For example, 11 st 7 lb = 69.85 + 3.175 = 73.03 kg.

How many kilograms are in 1 ston?

1 st equals 6.35029 kg.

How do you convert stones to kilograms?

Multiply the ston value by 6.35029. Formula: kg = st × 6.35029.

How many kilograms are in 5 stones?

5 st = 31.75145 kg.

How do you convert kilograms back to stones?

Use the inverse formula: st = kg ÷ 6.35029. For example, 1 kg = 0.157473 st.

What is the difference between Ston and Kilogram?

The stone is a UK imperial unit equal to exactly 14 pounds, or 6.35029318 kilograms. The kilogram is the SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.