⚖️ Comparison · Updated for 2026
Short Ton (US) vs Tonne (Metric)
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Quick answer: 1 short ton = 2,000 lbs = 907.185 kg. 1 tonne (metric) = 2,204.62 lbs = 1,000 kg. The metric tonne is about 10% bigger than the US short ton. UK 'long ton' is different again: 2,240 lbs = 1,016 kg. Always check which ton/tonne is intended in commodity trading.
Decision guide — when to use which
Use Short Ton (US) when…
US commodities, US freight, US construction. Sometimes called just 'ton' in US English.
Use Tonne (Metric) when…
International shipping, all metric commerce, scientific work, EU regulations.
📊 Side-by-side comparison
| Aspect | Short Ton (US) | Tonne (Metric) |
|---|---|---|
| Pounds | 2,000 lbs | 2,204.62 lbs |
| Kilograms | 907.2 kg | 1,000 kg exactly |
| UK long ton (for comparison) | 2,240 lbs / 1,016 kg | — |
| Used for | US freight, US grain | Global commerce, metric |
| Spelling | 'ton' (US) or 'short ton' | 'tonne' or 'metric ton' |
Frequently asked
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What's the difference between 'ton' and 'tonne'?
In British English, 'ton' (no e) usually means the long ton (2,240 lbs) or the short ton (2,000 lbs) by context. 'Tonne' (with e) always means the metric tonne (1,000 kg). The two are about 1.6% different (long vs metric).
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Why three different tons?
Long ton: traditional British (kept for historical reasons). Short ton: simplified American version (2,000 lbs is easier than 2,240). Metric tonne: the SI-aligned international standard. All three are still in active use.
Reviewed for 2026. All conversion factors and historical references verified against official sources (ISO standards, government weights & measures legislation, IEC technical specifications). Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.