Convert Tonne (t) (t) to Stone (st) (st)
Category: Mass
1 t = 157.473044 st
High-precision rounding: 6 decimals
How to convert tonne (t) to stone (st)
We convert by pivoting through the SI base unit for Mass and applying exact factors where applicable.
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Quick conversion table
Handy values for Tonne (t) → Stone (st). 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
- Tonne (t): A metric tonne is exactly 1,000 kg; standard for freight and industrial production.
- Stone (st): One stone equals 14 lb (~6.35 kg); still used for body weight in the UK/Ireland.
About Mass
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.
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).
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.