Convert Stone (st) to Tonne (t)
Category: Mass
10 st = 0.063503 t
High-precision rounding: 6 decimals
How to convert stone (st) to tonne (t)
Mass quantifies the amount of matter. The kilogram is defined by Planck’s constant, which anchors mass to fundamental physics. In practice, grams and pounds dominate everyday use—from recipes and parcels to body weight—while tonnes and long tons appear in logistics and industry.
This converter calculates Stone (st) to Tonne (t) values by using the correct conversion rule for the Mass category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.
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Quick conversion table
Handy values for Stone (st) to Tonne (t). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Confusing mass (lb) with force (lbf) in engineering contexts.
- Mixing metric tonnes (t) with short/long tons.
Unit facts
- Stone (st): One stone equals 14 lb (~6.35 kg); still used for body weight in the UK/Ireland.
- Tonne (t): A metric tonne is exactly 1,000 kg; standard for freight and industrial production.
About Stone (st)
Stone (st)
Equals 14 lb (≈6.35029 kg). Commonly used for body weight in the UK and Ireland; pairs naturally with feet/inches.
History: Historically varied by commodity and region. Later standardized for personal weight and sports reporting.
About Tonne (t)
Tonne (t)
Metric ton equals 1,000 kg. Used in logistics, emissions reporting (CO₂e), and industrial output. Works well with SI prefixes (kt, Mt).
History: Adopted with the metric system to simplify bulk trade; not to be confused with short ton (US) or long ton (UK).