Stone (st) to Metric Tonnes (t) Converter
Enter a value to instantly convert between weight units.
1 Stone = 0.0064 Metric Ton
Key Formulas
Kilogram → Pound
lb = kg × 2.20462Pound → Kilogram
kg = lb × 0.453592Gram → Ounce
oz = g × 0.035274Ounce → Gram
g = oz × 28.3495Formula
t = st × 0.00635029One stone equals 6.35 kilograms, and since a tonne is 1000 kg, one stone is about 0.00635 tonnes. While stone is mainly used for body weight in the UK, converting to tonnes is needed for international trade documentation, industrial contexts that use metric, or when combining UK traditional weights with metric system records.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
A UK agricultural market reporting 100 stone of wool converts to 0.635 tonnes for international trading.
100 st = 0.635 t
A horse trainer calculating 50 stone of horse weight for a metric-using racing authority — 0.3175 tonnes.
50 st = 0.3175 t
A UK freight company converting 200 stone of cargo for the metric-based logistics system — 1.27 tonnes.
200 st = 1.27 t
A UK construction firm ordering 10 stone of sand needs the tonne equivalent for the quarry — 0.0635 t.
10 st = 0.0635 t