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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

79.3787

kg

12.5 st = 79.3787 kg

kg = st × 6.35029318

Stones to Kilograms: 1 st equals 6.350293 kg. To convert stones to kilograms, multiply by 6.350293 (kg = st × 6.35029318). For example, 10 st = 63.502932 kg.

How to Convert Stones to Kilograms

To convert from stones to kilograms, multiply the value by 6.350293. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Stones to Kilograms: kg = st × 6.35029318
  • Kilograms to Stones: st = kg ÷ 6.35029318

Stones to Kilograms Conversion Chart

Stones (st)Kilograms (kg)
0.10.635029
0.251.587573
0.53.175147
16.350293
212.700586
319.05088
531.751466
1063.502932
20127.005864
25158.757329
50317.514659
100635.029318
2501587.573295
10006350.29318

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

Related

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 6.350293 kg.

How do you convert stones to kilograms?

Multiply the ston value by 6.350293. Formula: kg = st × 6.35029318.

How many kilograms are in 5 stones?

5 st = 31.751466 kg.

How do you convert kilograms back to stones?

Use the inverse formula: st = kg ÷ 6.35029318. 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.